Surfactant 13 May 2025 What is the analytical method for the detection of fluorescent whitening agents in food contact plastic materials? Fluorescent whiteners, as dyes with whitening effect, are harmful to human body. In the detection of food contact plastic materials,… Longchang Chemical
UV light curing series 27 Apr 2025 Why is camphor quinone commonly used as a photosensitizer in light-curing composite resins? The widespread use of camphorquinone (CQ) as a photosensitizer (photoinitiator) in light-curing composite resins (especially dental restorative materials) is mainly… Longchang Chemical
UV light curing series 22 Apr 2025 The environmental revolution of the paint family: the green declaration of waterborne paints Hi, I am “Water”, the new generation of water-based paint family! Although our family is not as hardcore as the… Longchang Chemical
UV light curing series 21 Apr 2025 Chemical Structure and Properties of BDDA Monomer Chemical Structure and Properties of BDDA 1,4-Butanediol diacrylate (BDDA) is a bisacrylate produced by the reaction of 1,4-butanediol with acrylic… Longchang Chemical
UV light curing series 08 Apr 2025 UV coating formulation: How to efficiently select oligomers (resins) The role of oligomers in UV coatings Oligomer: Oligomers, also known as prepolymers, are used in light-curing coatings. In earlier… Longchang Chemical
Photoinitiator 25 Mar 2025 UV solder resist ink raw materials – Photoinitiator UV solder resist ink With the semi-automation and automation of electronic product assembly processes and the promotion of assembly line… Longchang Chemical
Photoinitiator 24 Mar 2025 UV etching ink raw materials – Photoinitiator The copper circuits on the printed circuit board are formed by etching the copper foil on the copper-clad laminate with… Longchang Chemical
Photoinitiator 19 Mar 2025 What you need to know about the core value of Photoinitiator CQ? 1. What you need to know about the core value of Photoinitiator CQ CAS 10373-78-1 1.1 Why is CQ called… Longchang Chemical
Surfactant 18 Mar 2025 Iodopropynyl butylcarbamate IPBC CAS 55406-53-6 Usage 1. Coatings and paints field Corrosion protection:IPBC can effectively prevent the growth of microorganisms (e.g. bacteria, molds and fungi) in… Longchang Chemical
Photoinitiator 17 Mar 2025 UV varnish The printing and varnishing process involves applying a varnish (or varnishing paint) to the surface of the printed matter to… Longchang Chemical
UV light curing series 13 Mar 2025 HPMA monomer CAS 27813-02-1, why do customers always say, “This stuff is even more invigorating than coffee”? “Friends, I'm Harold, a chemical salesman who falls in love with HPMA (CAS 27813-02-1) every day. Don't get me wrong,… Longchang Chemical
UV light curing series 12 Mar 2025 DPHA monomer (CAS 29570-58-9): the core driver of light curing material upgrades The rise of DPHA from an industry perspective Global manufacturing is facing two major challenges: stricter environmental regulations and accelerated… Longchang Chemical
UV light curing series 10 Mar 2025 UV Gel Polish raw materials – UV Monomer UV Gel Polish With the improvement of living standard, people are pursuing more and more for beauty, and nail art… Longchang Chemical
UV light curing series 05 Mar 2025 UV label ink raw materials – UV Monomer 1. Label ink overview Label printing is a branch of the printing industry with considerable growth potential. The labeling industry,… Longchang Chemical
UV light curing series 04 Mar 2025 UV security ink – UV Monomer As a developer of anti-counterfeiting materials for 15 years, I am often asked, “Why can supermarket cashiers use ultraviolet pens… Longchang Chemical
UV light curing series 03 Mar 2025 UV curable Ink / UV ceramic ink – UV Monomer I'm Harold, a materials chemist in the field of ceramic surface engineering. Today I'll take you through the microscopic world… Longchang Chemical
Photoinitiator 28 Feb 2025 UV metal ink – Photoinitiator UV metal ink 3.12.1 Metal packaging printing Metal packaging materials, as an important packaging material in the packaging field, have… Longchang Chemical
UV light curing series 27 Feb 2025 UV glass ink – UV Monomer Glass and ceramics both contain silicates as the main ingredient. They are hard and brittle materials with polar surfaces. Therefore,… Longchang Chemical
Surfactant Examples of the use of iodopropynyl butylcarbamate in different industrial scenarios 24 Feb 2025 Iodopropynyl butylcarbamate : innovative solutions and application scenarios in the preservative and antimicrobial industry *Figure 1: Diagram Longchang Chemical
Surfactant 21 Feb 2025 Heavy soda ash vs light soda ash Heavy soda ash vs. light soda ash As an industrial chemist with 20 years of experience, I get questions like,… Longchang Chemical
Surfactant Light Soda Ash how to optimize the metal purification 18 Feb 2025 Is na2co3 ionic or covalent compound? As a chemist who has been involved in the research and development of industrial chemicals for 20 years, I am… Longchang Chemical
Photoinitiator 10 Feb 2025 UV light-curing transfer technology 1.1.1 transfer technology transfer technology is in the intermediate carrier (can be paper or plastic film) on the pre-printed patterns… Longchang Chemical
Photoinitiator 07 Feb 2025 UV-LED Inkjet Ink – Photoinitiator Hello, I'm Harold. Today I'll take you through the core code of UV-LED inkjet technology – the photoinitiator system. You'll… Longchang Chemical
Photoinitiator 06 Feb 2025 UV Inkjet Inks – Photoinitiator UV Inkjet Inks – Photoinitiator I'm Harold, a printing chemical engineer with 12 years of experience. Today, I'll take you… Longchang Chemical
Photoinitiator 05 Feb 2025 UV Pad Printing Inks and Reference Formulas Pad printing ink can be divided into three categories according to the drying method, namely, volatile drying type (one-component), two-component… Longchang Chemical
Photoinitiator 04 Feb 2025 UV Pad Printing Inks – Photoinitiator UV Pad Printing Inks Pad printing is the use of a deformable pad printing tip to transfer the ink from… Longchang Chemical
Photoinitiator 03 Feb 2025 UV gravure ink and reference formula Gravure printing ink viscosity is very small, usually in the range of 20-300mPa-s, to ensure that the ink has good… Longchang Chemical
Photoinitiator 31 Jan 2025 UV gravure inks – Photoinitiator UV gravure inks Gravure printing is a very good printing method, gravure printing rich and clear layers, thick ink layer,… Longchang Chemical
Photoinitiator 30 Jan 2025 UV Letterpress Inks and Reference Formulas Since letterpress printing is not as good as offset printing and flexographic printing, and the printing speed is not as… Longchang Chemical
Photoinitiator 29 Jan 2025 UV Letterpress Ink – Photoinitiator Letterpress is one of the earliest printing methods utilized in the printing industry, with the invention of collodion printing by… Longchang Chemical
Photoinitiator 28 Jan 2025 UV Offset Ink and UV Waterless Offset Ink Reference Formulation (1) UV Offset Ink Reference Formulation PEA 25.0 EA 25.0 Fatty acid modified EA 5.0 PUA 10.0 Pigment 17.0 CaCO3… Longchang Chemical
Photoinitiator 27 Jan 2025 Principle of waterless offset plate production – Photoinitiator The preparation of the waterless offset plate is divided into positive type (exposed with a positive picture) and negative type… Longchang Chemical
Photoinitiator 24 Jan 2025 Waterless Offset Printing- Photoinitiator Waterless Offset Printing- Photoinitiator Waterless Offset Printing is a gravure printing technology that does not use water or traditional fountain… Longchang Chemical
Photoinitiator 23 Jan 2025 Photoinitiator Improved adhesion to substrates Because UV offset inks have instantaneous curing and low-temperature curing characteristics, they can be used not only on ordinary paper,… Longchang Chemical
Photoinitiator 22 Jan 2025 Improvement of rheological properties and printability of UV offset inks (1) Pigment Wettability The linker of UV Offset Ink is mainly composed of high polarity oligomer and active diluent, and… Longchang Chemical
Photoinitiator 21 Jan 2025 Offset printing – Photoinitiator Offset printing, also known as lithography, is one of the most widely used printing methods in the printing field. Offset… Longchang Chemical
Photoinitiator 20 Jan 2025 UV Decorative Ink Reference Formula – Photoinitiator UV Decorative Ink Reference Formula (1) UV Silver White Pearlescent Ink Reference Formulation EA (EB605) 40 PUA (EB264) 17 TPGDA… Longchang Chemical
Photoinitiator 17 Jan 2025 UV Decorative Gravure and Flexographic Inks – Photoinitiator UV Decorative Gravure and Flexographic Inks – Photoinitiator UV decorative screen printing ink varieties, single performance, some use trouble, low… Longchang Chemical
Photoinitiator 16 Jan 2025 UV Crystal Ink – Photoinitiator UV Crystal Ink UV Crystal Ink can be printed by low mesh (40 mesh, 60 mesh, 80 mesh) screen printing,… Longchang Chemical
Photoinitiator 15 Jan 2025 UV Three-dimensional printing – Photoinitiator Three-dimensional printing is based on optical principles, the use of lenticular plate to make the image memory of a three-dimensional… Longchang Chemical
Photoinitiator 14 Jan 2025 UV luminescent ink – Photoinitiator UV luminescent ink is a kind of special functional ink prepared by adding luminescent material in transparent ink, which has… Longchang Chemical
Photoinitiator 13 Jan 2025 UV Scented Ink – Photoinitiator In addition to the pursuit of visual beauty in printing, people in the sense of smell is also a breakthrough… Longchang Chemical
Photoinitiator 10 Jan 2025 UV Backlight Ink – Photoinitiator UV Backlight Ink UV light-emitting ink is a kind of special functional ink prepared by adding luminescent material in transparent… Longchang Chemical
Photoinitiator 09 Jan 2025 UV foaming ink – Photoinitiator UV foaming ink is a kind of decorative ink to form three-dimensional pattern on the substrate, due to the printing… Longchang Chemical
Water treatment 06 Jan 2025 What are the ratios of commonly used chemicals and operating techniques in sewage treatment plants? A sewage treatment plant needs to add various chemicals during the treatment process to ensure that the effluent quality meets… Longchang Chemical
Photoinitiator 03 Jan 2025 UV pearlescent ink – Photoinitiator UV pearlescent ink UV pearlescent ink is a special type of ink with a pearlescent effect, produced by adding mica… Longchang Chemical
Photoinitiator 02 Jan 2025 UV Ice Flower Ink – Photoinitiator UV Ice Flower Ink UV Ice Flower Ink is a special UV transparent ink. It is printed on a card… Longchang Chemical
Photoinitiator 01 Jan 2025 UV imitation metal etching ink (frosted ink) – Photoinitiator UV imitation metal etching ink (frosted ink) UV imitation metal etching printing makes use of the defects in UV imitation… Longchang Chemical
Photoinitiator 01 Jan 2025 UV wrinkle ink – Photoinitiator UV wrinkle ink Normally, when ink dries, wrinkling occurs if the surface layer shrinks differently from the underlying layer. This… Longchang Chemical
Photoinitiator 30 Dec 2024 UV reflective ink – Photoinitiator UV reflective ink UV reflective ink, commonly known as laser ink, is a special ink used for reflective (laser) printing.… Longchang Chemical
Photoinitiator 26 Dec 2024 UV screen printing – Photoinitiator Screen printing, also known as screen printing or screen printing, belongs to the perforated printing. Screen printing plate is a… Longchang Chemical
Photoinitiator 25 Dec 2024 Light-curing plastic coatings In today's materials and processes continue to collide with the fusion, giving rise to unlimited innovation, light-curing ink coatings like… Longchang Chemical
Photoinitiator 24 Dec 2024 LED-UV Coatings for Paper & Board In today's everywhere show personality, the quality of excellence in the wave of the times, I believe that each of… Longchang Chemical
Photoinitiator UV curing putty reference formula 23 Dec 2024 Light curing bamboo wood coating In today's materials science and industrial applications of the bright starry sky, light-curing coatings like a dazzling star, is with… Longchang Chemical
Photoinitiator 19 Dec 2024 UV-LED Curing Technology Breakthrough: Capsaicin Photoinitiation System and Peelable Protective Gel Invention A capsaicin/iodonium salt-based photoinitiator system for UV-LED curing Nanjing Forestry University discloses a method of matching capsaicin and iodonium salt… Longchang Chemical
UV light curing series 18 Dec 2024 Polythiol with amine accelerators in adhesive 1. Limitations of commonly used curing agents and advantages of mercaptans: In the field of epoxy curing, currently commonly used… Longchang Chemical
Photoinitiator 17 Dec 2024 What is a nail polish that meets EU standards for personal use? At present, the domestic nail polish products are mostly applied to nail salon and nail salon professional line category, can… Longchang Chemical
Photoinitiator 16 Dec 2024 Difference in viscosity seen with your own eyes In the wonderful world of ink, viscosity and viscosity is like a pair of closely linked but each with its… Longchang Chemical
Photoinitiator 12 Dec 2024 Irgacure 819 and PEGDA Monomer in 3D Printing Photoinitiator 819 and PEGDA monomer are playing an increasingly important role in 3D printing. For factories using photoinitiator 819 and… Longchang Chemical
Photoinitiator Photoinitiator benzophenone 11 Dec 2024 Why is benzophenone insoluble in water? Is benzophenone polar or nonpolar? Benzophenone is an extremely important photoinitiator in the field of ink manufacturing. However, the question of whether benzophenone is polar… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 10 Dec 2024 What are Composition and Performance of EVA in Photovoltaic Applications? In the booming photovoltaic industry, EVA has attracted much attention as a key photovoltaic material. The so-called EVA is a… Longchang Chemical
UV light curing series 09 Dec 2024 Eliminating Foam: How to choose an antifoam agent? The occurrence of foam often causes inconvenience and problems in industrial production and daily life, so finding an effective method… Longchang Chemical
UV light curing series 05 Dec 2024 UV and LED nail lamps: who is the king of gel polish curing? In the dazzling world of nail art, UV and LED nail lamps are the two stars when it comes to… Longchang Chemical
Laboratory News 03 Dec 2024 Why use acetonitrile to remove water rather than acetone or ethanol? Extraction is undoubtedly a subtle scientific art in the vast world of chemistry. Today, let us explore some unique extraction… Longchang Chemical
Photoinitiator 02 Dec 2024 UV Curing Inkjet Ink: What You Need to Know In the vast field of printing and packaging, ink undoubtedly plays a crucial role and is one of the core… Longchang Chemical
Photoinitiator 29 Nov 2024 How to substitute tpo photoinitiator ? The ECHA has officially announced that diphenyl (2,4,6-trimethylbenzoyl)phosphine oxide, also known as photoinitiator TPO, has been included in the… Longchang Chemical
Photoinitiator 28 Nov 2024 Where are uv resistant coatings used? In today's industrial sector, UV coatings have emerged and play a vital role in many industries due to their unique… Longchang Chemical
Photoinitiator 27 Nov 2024 film-forming mechanism of paint 1. The diversified development pattern of coatings In the field of coatings today, they can be mainly divided into three… Longchang Chemical
Photoinitiator 26 Nov 2024 What should I pay attention to when using PCB inks? In the field of electronic circuit manufacturing, the production of PCB (Printed Circuit Board) is of paramount importance, and PCB… Longchang Chemical
Photoinitiator 25 Nov 2024 What are the tips for repainting furniture? Giving old furniture a new lease of life Wear and tear is inevitable during the use of furniture. Knowing some… Longchang Chemical
Photoinitiator 21 Nov 2024 How to improve the coverage of white ink? In the field of packaging printing, when companies take over the business of transparent film packaging, the white ink undercoating… Longchang Chemical
Photoinitiator 20 Nov 2024 How do I solve the problem of the printing ink not scraping clean? In the printing industry, we often encounter a tricky problem – printing ink that won't scrape off clean. The reasons… Longchang Chemical
Photoinitiator 19 Nov 2024 Lithium Phenyl phosphinate (Photoinitiator LAP): A Versatile Blue Light Photoinitiator for Advanced Applications In today's era of booming technology, there is a magical substance called Photoinitiator LAP. It is used as a blue… Longchang Chemical
UV light curing series 18 Nov 2024 How do you solve problems with gravure ink formulation and printing? In the field of gravure printing, ink formulation is like an art form, which involves a lot of skills and… Longchang Chemical
UV light curing series 14 Nov 2024 What is the relationship between gravure ink and stickiness? In the world of gravure printing on plastic films, there is a tricky problem – blocking, which is like a… Longchang Chemical
UV light curing series 13 Nov 2024 What are the 3 types of drying methods for waterborne paint coatings for furniture? In the field of furniture manufacturing and decoration, the drying process of water-based paint coatings is a key link. It… Longchang Chemical
UV light curing series 12 Nov 2024 What are the factors that affect the charge of the powder coating on the friction gun? The powder coating spraying process mainly includes corona spray and tribo spray. Corona spray is widely used in China and… Longchang Chemical
UV light curing series 11 Nov 2024 How to solve the top ten problems most likely to occur with paint? 1. Coating build-up Causes: 1. The paint is slow to flow. As paint is a thixotropic fluid, there is a… Longchang Chemical
UV light curing series 08 Nov 2024 How does the defoaming property of high-viscosity varnishes for water-based wood coatings compare? During the application of water-based wood coatings, it is generally recommended to apply the coating in thin layers and multiple… Longchang Chemical
UV light curing series 07 Nov 2024 What are the 15 technical issues of pigments for coatings? 1. How can we avoid using toxic lead chromate and lead molybdate without affecting the colour of the paint? Due… Longchang Chemical
UV light curing series 06 Nov 2024 How do I mix spot colour inks? Spot colour ink: it is a pre-mixed specific colour ink, such as fluorescent yellow, pearl blue, metallic gold and silver… Longchang Chemical
UV light curing series 05 Nov 2024 How to solve ink crystallisation? Packaging printing is often the first to print the base colour in order to accentuate the high quality of graphic… Longchang Chemical
UV light curing series 04 Nov 2024 What are the ink blending techniques and precautions? Blending ink is an important work in the colour printing process, which is directly related to the printing quality of… Longchang Chemical
UV light curing series 31 Oct 2024 What are the applications of solvent-based inks in printing and common printing faults? Precautions for the use of solvent-based inks 01 Solvent-based inks are dangerous goods and should be stored away from fire… Longchang Chemical
UV light curing series 28 Oct 2024 Reaction mechanism of epoxy resin and polythiol monomer? The reaction mechanism between epoxy resins and polythiols mainly involves the interaction between the thiol group and the epoxy group.… Longchang Chemical
UV light curing series 25 Oct 2024 After dry lamination with PET film, why does the ink always transfer to the inner film? PET film is a polar film with a surface tension of 45-50 dyn without treatment. It is also a film… Longchang Chemical
UV light curing series 24 Oct 2024 What is the solution to ink skinning? Ink skinning is not only a problem that causes trouble in printing, but also a waste of materials to some… Longchang Chemical
UV light curing series 23 Oct 2024 What are the types of ink vehicle and what are the factors for selection? As we all know, ink is composed of a binder, pigments, fillers, additives and solvents, etc., and is an important… Longchang Chemical
UV light curing series 22 Oct 2024 Is solvent-based ink on the way out? This seems to be a topic of great interest in the printing industry. In recent years, with the gradual increase… Longchang Chemical
UV light curing series 21 Oct 2024 What are the key points of the UV water-based process for custom solid wood? As the state pays more and more attention to the environmental protection of the home industry, the requirements for corporate… Longchang Chemical
UV light curing series 18 Oct 2024 How can the disadvantages of applying ultrafine powder coatings be overcome? Powder coatings and painting are rapidly developing powder coatings with the outstanding advantages of being environmentally friendly, economical, efficient and… Longchang Chemical
Enzyme News 17 Oct 2024 What is the application of enzyme preparations in oral care? Hello, I'm Harold, a recipe developer who has been working with enzymes in the biochemistry laboratory for 15 years. Today… Longchang Chemical
Enzyme News 16 Oct 2024 The application of enzyme preparations in condiments: the miraculous power of enhancing flavor and freshness Condiments are an indispensable part of cooking, and their quality and taste directly affect the overall flavor of the dish.… Longchang Chemical
Enzyme News 15 Oct 2024 What is the role of alpha amylase in flour? Flour is the cornerstone of delicious baked goods, and alpha amylase is an “invisible artist” in flour, playing a vital… Longchang Chemical
Enzyme News 14 Oct 2024 If bread sticks to the teeth, which enzyme has been added in excess? What are the four main ingredients of food-grade enzyme preparations and why are they important? As important additives in the… Longchang Chemical
Enzyme News 11 Oct 2024 What enzymes are used in soy sauce? In traditional Chinese brewing techniques, soy sauce is loved for its unique flavor and color. And the role of enzymes… Longchang Chemical
Enzyme News 09 Oct 2024 What are the uses of bio-enzyme re-cleaning in the fields of domestic and industrial cleaning? Biological enzymes are widely used in daily chemical and industrial cleaning products. They not only improve cleaning efficiency, but also… Longchang Chemical
Enzyme News 08 Oct 2024 What exactly is the role of lipase in food? Lipases, as a class of enzymes capable of hydrolyzing fats and esters, play a vital role in the food industry.… Longchang Chemical
Enzyme News 07 Oct 2024 Cellulase improves the comprehensive value of plant materials Cellulase is the collective name for a group of enzymes that degrade cellulose to produce glucose. It is not a… Longchang Chemical
Enzyme News 04 Oct 2024 What are the factors affecting the effectiveness of enzyme preparations? In the pursuit of a green and low-carbon lifestyle, enzyme preparations have penetrated every aspect of our lives due to… Longchang Chemical
Enzyme News 02 Oct 2024 What is the difference between pet food and animal feed? In modern pet ownership and agricultural production, the choice of pet food and animal feed directly affects the health and… Longchang Chemical
Enzyme News 28 Sep 2024 Protease improves key indicators of fermented soybean meal Soybean meal is a by-product obtained after soybean oil is extracted from soybeans. It has a high content of protein… Longchang Chemical
Enzyme News 27 Sep 2024 Application of enzyme preparations in yeast hydrolysates With the continuous development of the feed industry and the continuous improvement of yeast technology, yeast hydrolysates have become one… Longchang Chemical
Enzyme News 26 Sep 2024 How to effectively weaken the bitter taste of protein hydrolysate? In modern food industry, protein hydrolysis is generally based on enzymatic hydrolysis, protein hydrolysates have better physiological activity than intact… Longchang Chemical
Enzyme News 25 Sep 2024 Enzymes in fermented pasta Glutaminase - boosting the quality of zero-added soy sauce Zero-added soy sauce refers to the selection of 100% natural grain… Longchang Chemical
Enzyme News 24 Sep 2024 Application of enzymes in pasta products I. Application of enzymes in baked foods In the baked goods in the application of enzyme preparations are mainly amylase,… Longchang Chemical
Enzyme News 23 Sep 2024 Application of enzymes in food baking With the development of science and technology, enzymes are no longer only used in the textile industry, chemical industry laundry… Longchang Chemical
Enzyme News 20 Sep 2024 Application of acid-resistant high temperature amylase in various fields With the development of starch deep-processing industry and the change of process conditions, the enzyme varieties need to be constantly… Longchang Chemical
Enzyme News 18 Sep 2024 biocatalytic technology is a technology that utilizes enzymes or microbial cells or plant and animal cells as biocatalysts to catalyze reactions. Enzymes… Longchang Chemical
Enzyme News 13 Sep 2024 What’s the difference between a Amylase and a brewer’s yeast? In this article, we will analyse in detail the concept, working principle, function and difference of saccharification enzyme and wine… Longchang Chemical
Enzyme News 12 Sep 2024 What is the structure and function of enzymes? Composition of enzymes Simple enzymes: enzymes composed only of amino acid residues. Bound enzymes: composed of enzyme proteins and non-protein… Longchang Chemical
Enzyme News 10 Sep 2024 What do you know about proteases? Protease is a general term for a class of enzymes that hydrolyze protein peptide chains. According to its degradation of… Longchang Chemical
Enzyme News 09 Sep 2024 Why the end of AI is biopharma? Regarding the future development direction of AI, the investment community has different opinions, some believe that it is the photovoltaic… Longchang Chemical
Enzyme News 06 Sep 2024 How are enzymes produced and what are their applications? 01Liquid fermentation At present, the commonly used technology for enzyme production at home and abroad is liquid fermentation, i.e., the… Longchang Chemical
UV light curing series 05 Sep 2024 A large number of carboxyl groups in the waterborne aminobaking enamel system seriously affects the performance of the paint film, what should be done? As a water-based industrial paint, water-based baking varnish is widely used nowadays. Some of the factors affecting the water resistance… Longchang Chemical
Enzyme News 04 Sep 2024 Application of enzyme engineering technology in biopharmaceuticals Enzyme engineering is a science that uses enzymes, enzyme-containing organelles or cells (microorganisms, animals, plants) in certain reaction devices, utilizes… Longchang Chemical
Uncategorized 30 Aug 2024 What are the ten areas that affect the process of distillation operations? The distillation operation process is influenced by the following factors: feed position, tower temperature, tower pressure, feed status, feed volume,… Longchang Chemical
Enzyme News 29 Aug 2024 Microchemical technology in the context of a large chemical production model At present, the chemical production under the mode of “big chemical” has many problems such as huge equipment, high energy… Longchang Chemical
Laboratory News 28 Aug 2024 Purification of common solvents Commonly used reagents from chemical suppliers are only sufficient for general chemical reactions. In order to ensure the smooth running… Longchang Chemical
Enzyme News 27 Aug 2024 Modification of protease-producing strains Protease is a class of enzyme that catalyzes the hydrolysis of peptide bonds in proteins, which is widely found in… Longchang Chemical
Enzyme News 26 Aug 2024 What is the focus of protein and enzyme engineering? 1. Protein engineering: based on the study of the relationship between protein structure and function, the use of genetic engineering… Longchang Chemical
Enzyme News 22 Aug 2024 what type of macromolecule is an enzyme? As we all know, living organisms are composed of cells. Enzymes are the catalysts of metabolism in the human body,… Longchang Chemical
Enzyme News 21 Aug 2024 What are the characteristics and applications of the various enzymes of IVD raw materials? Polymerase Chain Reaction (PCR) is a molecular biology technique used to amplify specific DNA fragments, which is regarded as DNA… Longchang Chemical
Enzyme News 20 Aug 2024 What is the computational chemistry approach in industrial enzyme research? The paper introduces the main computational chemistry methods used in industrial enzyme research, especially for guiding enzyme engineering, including molecular… Longchang Chemical
Enzyme News 19 Aug 2024 What is the bio-enzyme production process? 1.Enzyme production Enzymes are produced from microorganisms, animals and plants, but the main source is microorganisms. Since microorganisms have more… Longchang Chemical
Enzyme News 16 Aug 2024 What are the factors affecting the effectiveness of enzyme use, and their application in the food industry? As people pay more and more attention to food safety, nutrition, health and deliciousness, food is no longer just a… Longchang Chemical
Enzyme News 15 Aug 2024 Principles of enzyme engineering and its applications in the fields of food, light industry and pharmaceuticals 1. Principle Enzyme engineering is the enzyme or microbial cells, animal and plant cells, organelles, etc. in a certain biological… Longchang Chemical
Enzyme News 14 Aug 2024 Protease and Enzyme Engineering 1. Protein engineering: based on the study of the relationship between protein structure and function, the use of genetic engineering… Longchang Chemical
News 13 Aug 2024 2024 Chemical giants step into a period of frequent strategic adjustments? I see that, stepping into 2024, the global chemical giants' strategic adjustments sound endless, BASF, LG Chemical, Costco, Honeywell, South… Longchang Chemical
News 12 Aug 2024 What are some tips for optimizing energy consumption in reaction vessels? Reactor kettles are commonly used in the chemical industry to carry out various chemical reactions. However, energy consumption of reaction… Longchang Chemical
Water treatment 02 Aug 2024 What is hypersaline wastewater? And what are the effects of high-salt wastewater on biochemical systems? Salinity greater than how much is high salt wastewater and high salt wastewater biochemical treatment, we have to first understand… Longchang Chemical
Water treatment 01 Aug 2024 What are several commonly used advanced oxidation techniques and their advantages and disadvantages? Advanced Oxidation Processes, a technology for the treatment of toxic and difficult pollutants that began to take shape in the… Longchang Chemical
Water treatment 31 Jul 2024 What is the sewage regulator? I. What is the sewage regulator? Sewage regulator refers to: in sewage treatment, used to regulate the flow of incoming… Longchang Chemical
Water treatment 29 Jul 2024 What is biochemical treatment of wastewater? Biochemical treatment is the use of microorganisms to remove soluble organic matter and some insoluble organic matter from wastewater by… Longchang Chemical
Water treatment 26 Jul 2024 10 Process Principles of Wastewater Treatment 1. Purification mechanism of biofilm method 1.1 Biofilm consists of aerobic and anaerobic layers, the degradation of organic matter mainly… Longchang Chemical
UV light curing series 23 Jul 2024 How do we treat acrylic wastewater and off-gases? Acrylate wastewater treatment process Acrylic ester industry has a very broad development prospects, while bringing environmental issues can not be… Longchang Chemical
Water treatment 19 Jul 2024 Wastewater Treatment 28 Knowledge Points 1. Total solids: the quantitative water samples in the 105 ~ 110 ℃ oven small drying to constant weight, the… Longchang Chemical
Water treatment 15 Jul 2024 Nitrification Denitrification 20 Questions and Answers ▷ Question 1: What is the better carbon to nitrogen ratio for denitrification in practice? Is it below 5 or… Longchang Chemical
Soresyn Resin 09 Jul 2024 What are the downstream fine chemical routes for C5? The C5 industry is a niche track, and currently only naphtha cracking by-produces C5 components, which is the most basic… Longchang Chemical
Water treatment 08 Jul 2024 Responding to the government’s environmental protection requirements, the five situations and countermeasures of the secondary sedimentation tank effluent with mud Existence of shock load Judgment point: The effluent is accompanied by turbidity. Analysis: Activated sludge load caused by the discharge… Longchang Chemical
Surfactant 05 Jul 2024 What are the fine chemical routes downstream of ethanol? I see that the current progress of transformation of China's chemical enterprises is more than expected, the most urgent of… Longchang Chemical
Water treatment 03 Jul 2024 Why can’t dissolved oxygen be too high in wastewater treatment? The process principle of aerobic treatment system is to utilize the metabolism of aerobic microorganisms to convert organic pollutants in… Longchang Chemical
Water treatment 02 Jul 2024 What is the full explanation of the biochemical tank foam problem and how to control it? Foam type Start-up Commissioning Foam Start-up commissioning foam formation mechanism: 1. As the activated sludge in the aeration tank is… Longchang Chemical
Water treatment 01 Jul 2024 What are MBR membranes and their combined processes? What is MBR process? Membrane Bioreactor ( Membrance Bioreactor Reactor, referred to as MBR) is a new process of biological… Longchang Chemical
Water treatment 26 Jun 2024 sewage treatment plant: how does sewage treatment work? 1, sewage treatment plant organisational structure Wastewater plant production and operation functions mainly by the plant, operation department (including the… Longchang Chemical
Medicine News 25 Jun 2024 What Is Chitosan? Uses, Benefits, Side Effects, and Dosage 1. What is the application of chitosan in beef and its products? Beef and its products in its processing, storage… Longchang Chemical
Surfactant 24 Jun 2024 Improvement of biochemical systems directly affects nitrogen and phosphorus removal Improving the nitrogen and phosphorus removal effect of the biochemical system is one of the key objectives in wastewater treatment.… Longchang Chemical
Laboratory News 21 Jun 2024 Chemical plant pre-commissioning, linkage commissioning safety operation points I. Piping system pressure test 1、Piping system pressure test conditions a. Safety valves have been blinded, rupture plates have been… Longchang Chemical
Laboratory News 19 Jun 2024 What are the methods of separation and purification of organic compounds? 01 Purification methods for solid organic compounds Solid organic compounds are generally purified by recrystallization. 1. Recrystallization principle: in a… Longchang Chemical
News 17 Jun 2024 How far can isobutyraldehyde and neopentyl glycol go up? Isobutyraldehyde recently domestic prices rose significantly, compared with the beginning of May, the price increase is close to 20%, by… Longchang Chemical
Surfactant 14 Jun 2024 What is the cause analysis and solution for ammonia nitrogen exceeding the standard? Nitrogen is the main nutrient causing eutrophication of water bodies, nitrogen source pollution causes many environmental hazardous problems, the content… Longchang Chemical
UV light curing series 12 Jun 2024 Preparation and application of acrylic resin for ultrafine powder coatings The polyacrylate resin and its ultrafine powder coating were prepared, the structure of polyacrylate resin was characterised by infrared spectroscopy,… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 29 May 2024 Analysis of the development status of polyurethane adhesives In recent years, with the rapid improvement of the level of material development, a variety of adhesives with stronger applicability… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 27 May 2024 What are the specific applications of polyurethane catalysts in several typical polyurethane flexible foams? 1、Typical formula and performance of block polyether type PU soft foam Polyether ternary alcohol 100pbw TDI80/20 46.0pbw Organic tin catalyst… Longchang Chemical
Food Additives 23 May 2024 The golden ingredient for salt reduction and freshness enhancement, yeast extracts are used for much more than that! Yeast extract is a natural flavouring ingredient, which is the product of yeast after plasmic wall separation and complete autolysis… Longchang Chemical
Medicine News 10 May 2024 Carbon-efficient production of yeast chemicals Carbon efficiency is one of the main factors defining the viability of a pathway process and is the main determinant… Longchang Chemical
Antioxidant 08 May 2024 What is the role of antioxidants in synthetic resins? The industrial production of synthetic resins in the coatings industry is very different from scientific experiments in the laboratory and… Longchang Chemical
Medicine News 06 May 2024 What is the application of ultra-micro pulverisation technology in the food industry? Ultra-micro-grinding technology is in recent years with the modern chemical, electronics, biology, materials and mineral development and other high-tech development… Longchang Chemical
Medicine News 29 Apr 2024 What is the difference between chitin, chitosan and chitosan? Chitin, chitosan and chitooligosaccharides are all polysaccharides extracted from the shells of crustaceans (e.g. shrimps, crabs, shellfish), and they have… Longchang Chemical
Antioxidant 26 Apr 2024 How to solve the problem of large amount of waste salt caused by acid binders? 1, antioxidant 3052 is a multi-functional main antioxidant, with the traditional phenolic antioxidant mechanism, compared with the antioxidant 3052 can… Longchang Chemical
Soresyn Resin 22 Apr 2024 How to solve the problem of discolouration of produced plastic products? ● When colouring plastic products using methods such as colour powders or masterbatches, the phenomenon of colour change may occur,… Longchang Chemical
UV light curing series 15 Apr 2024 Analysis of solvent classification and properties in coatings First, what is a solvent? Any kind of liquid with the ability to dissolve other substances, and can generate a… Longchang Chemical
Uncategorized 10 Apr 2024 What are the low-carbon chemicals that the country encourages the development of? Low-carbon chemicals that the Chinese government encourages the development of mainly include the following aspects: New energy chemical industry: including… Longchang Chemical
Food Additives 08 Apr 2024 What’s the difference between yeast, baking powder and baking soda? Can they be used together? Yeast, baking powder and baking soda are three common leavening or foaming agents that are familiar to housewives or food… Longchang Chemical
Food Additives 07 Apr 2024 What are the colours in tea and what do they do? Pigment in tea is a class of coloured substances present in fresh leaves of tea tree and finished tea, it… Longchang Chemical
UV light curing series 06 Apr 2024 Is the new process for producing acrylic acid by direct oxidation of propane competitive? According to my understanding, a domestic enterprise recently announced plans to invest in the construction of propane direct oxidation acrylic… Longchang Chemical
plasticizer 01 Apr 2024 How to prepare low odour modified PP for automotive use by stepwise mixing of raw materials and post-treatment of modified materials? Polypropylene (PP) has excellent mechanical properties and is widely used in many fields. However, due to the polymerisation process (e.g.… Longchang Chemical
Antioxidant 29 Mar 2024 How much do different antioxidants and process dosages affect discolouration of PC plastics? In the beginning stage of oxidation, as the temperature rises it will intensify the thermal degradation reaction, the oxidative degradation… Longchang Chemical
Surfactant 28 Mar 2024 Ingredient Analysis of Common Laundry Detergent Formulations Liquid fabric detergent is the most used type of liquid detergent, which is used for the washing and maintenance of… Longchang Chemical
Soresyn Resin 25 Mar 2024 What are the trends in energy storage materials? According to my understanding, energy storage refers to the use of physical or chemical methods, the use of physical or… Longchang Chemical
UV light curing series 22 Mar 2024 Understanding methyl methacrylate from a production process perspective In my opinion, value analysis is an important method to analyse the market, which can quickly understand the logic of… Longchang Chemical
Pharmaceutical intermediates 21 Mar 2024 Progress on the mechanism of blood lipid-lowering effect of functional food ingredients Cardiovascular disease (CVD) is the leading cause of death worldwide, and hyperlipidemia is one of the most important risk factors… Longchang Chemical
Laboratory News 20 Mar 2024 Super detailed chemical plant flow chart! Flow chart of isomerization device An isomerization unit is similar to an ordinary hydrofinishing unit. Take butane isomerization as an… Longchang Chemical
Food Additives 18 Mar 2024 Overview of Soluble Dietary Fiber Dietary fiber (DF) is usually regarded as a class of compounds that cannot be digested by human digestive enzymes, and… Longchang Chemical
Surfactant 15 Mar 2024 MYTH vs TRUTH: Does the thicker the detergent, the better it is at removing stains? The correct answer: The statement "the thicker the detergent, the better it removes dirt" is a common misconception with subjective… Longchang Chemical
Surfactant 13 Mar 2024 Molecular Structure Characteristics of Surfactants Surface Tension and Surface-Active Substances Solutes that adsorb positively in aqueous solution reduce the surface tension of water, while solutes… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 27 Feb 2024 What are the applications of alginate in the food industry? Alginic acid and alginates are polysaccharides mainly extracted from brown algae (Phaeophyceae) of the genus Lamiaria hyperborea, L. digitata, and… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 26 Feb 2024 Synthesis of lanthanum pyrazine-2,3-dicarboxylic acid and its effect on the stability of poly(vinyl chloride) PVC is one of the most widely used polymers in the market today, and it plays an important role in… Longchang Chemical
Surfactant 04 Feb 2024 How do I adjust the viscosity of the cleaner? Detergent has a certain viscosity, detergent decontamination ability and viscosity is not directly related. The viscosity of the detergent is… Longchang Chemical
Laboratory News 29 Jan 2024 Knowledge of standardized laboratory management The basic points of standardized laboratory management are as follows: 1. establish a strict laboratory management system, clear responsibilities and… Longchang Chemical
Soresyn Resin 25 Jan 2024 Analysis of factors affecting the quality of lubricant blending In recent years, lubricants in various types of automobiles, machinery and equipment to reduce friction, protection of machinery and processed… Longchang Chemical
Laboratory News 24 Jan 2024 What are some tips for using a chromatography injection needle? Chromatographic injection needle is small but indispensable, the injection needle is connected to the sample and analytical instrument channels, with… Longchang Chemical
Laboratory News 22 Jan 2024 Unlocking Solutions: Tackling 60 Common Biochemical Challenges in Wastewater Treatment 1. Q: How is the methane produced by anaerobic digestion disposed of? How can it be utilized? A: There are… Longchang Chemical
Antioxidant 19 Jan 2024 Revolutionizing Industrial Processes: The Exceptional Impact of Antioxidant DLTDP and Antioxidant DSTDP in Asia and Europe 0.1 Critical role of antioxidants in industrial applications: Improving stability and longevity Antioxidants are indispensable agents in a variety of… Longchang Chemical
UV light curing series 17 Jan 2024 Crafting a Future of Resilient Materials with Polythiol Brilliance 1.1 Definition and Properties of Polymer Thiols PETMP Monomer is an excellent sulfur ester antioxidant, with a high sulfur content… Longchang Chemical
Antioxidant 16 Jan 2024 Antioxidant 1076: Elevate Your Products with Superior Stability and Brilliance 1. 1 Antioxidant 1076 is a widely used compound known for its efficacy in inhibiting oxidation and continues to evolve… Longchang Chemical
Soresyn Resin 11 Jan 2024 Elevating Performance with Advanced Chlorinated Polypropylene Technology Chlorinated polypropylene (CPP for short) is a structure containing Cl groups of polypropylene (PP) chemical modification products, the appearance of… Longchang Chemical
Antioxidant 08 Jan 2024 How do antioxidants work? 1. Research scope of antioxidants Research efforts on antioxidants have focused on the following three areas. (1) Screening of natural… Longchang Chemical
Antioxidant 05 Jan 2024 To avoid or retard oxidative reactions – Antioxidants 1, in order to avoid or delay the oxidation reaction, mainly from the raw materials, processing and preservation of quality… Longchang Chemical
Antioxidant 29 Dec 2023 What are the six main categories of natural antioxidants? Antioxidants act as hydrogen donors and are used to scavenge free radicals generated during the chain initiation phase, thus inhibiting… Longchang Chemical
Antioxidant 25 Dec 2023 Which kinds of antioxidants are there? Classification of common antioxidants According to the actual role of the different mechanisms of influence, antioxidants can be grouped into the following categories: 1,… Longchang Chemical
Laboratory News 22 Dec 2023 How do polymers age? Polymeric materials include plastics, rubber, fibers, films, adhesives and coatings. Because they have many potential properties superior to those of… Longchang Chemical
UV light curing series 20 Dec 2023 Bisphenol A Market Plunges in Q4 2023 Review 2023 bisphenol A market, the first half of the domestic bisphenol A market can not escape the spell continued… Longchang Chemical
UV light curing series 15 Dec 2023 What are the four main components of UV adhesive and the characteristics use? UV adhesive, also known as ultraviolet light curing adhesive, shadowless adhesive, photosensitive adhesive, refers to the photoinitiator in the ultraviolet… Longchang Chemical
Medicine News 14 Dec 2023 How to get the most benefits from sarcosine? The role of sarcosine is that it can be found in meat foods such as meat and fish. In addition,… Longchang Chemical
Medicine News 12 Dec 2023 Is it safe to take creatine with milk? Unless one is lactose intolerant, it is safe to take creatine with milk. There are no findings or anecdotal evidence… Longchang Chemical
Antioxidant 04 Dec 2023 What are the differences between Antioxidant 1010; 168 and 1076? First, the causes and solutions of plastic yellowing. The effective solution to plastic yellowing is to add antioxidants, ultraviolet absorbers,… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 24 Nov 2023 What does SPF stand for in sunscreen products and does a higher SPF mean better results? 1. UVB and UVA do different damage to the skin UVB has a shorter wavelength (290-320 nm) and stronger energy,… Longchang Chemical
UV light curing series 23 Nov 2023 What is the difference between methacrylate monomer and acrylate monomer? Methacrylate monomers and acrylate monomers are two distinct types of monomers widely used in the field of polymer chemistry, particularly… Longchang Chemical
UV light curing series 17 Nov 2023 Explanation of the advantages of the ultraviolet absorber triazine UVA Triazine is a nitrogen-containing heterocyclic compound with a six-membered ring structure consisting of three carbon atoms and three nitrogen atoms.… Longchang Chemical
Medicine News 15 Nov 2023 Arbutin, Vitamin C or Niacinamide, which one is safer and more effective for whitening? All whitening products have one purpose, to make the skin look whiter. A good whitening product has at least one… Longchang Chemical
Medicine News 13 Nov 2023 Niacinamide is touted to be so amazing, why does many people use it for months with no results at all? Among the "whitening" ingredients, niacinamide is the cheapest, but not the most effective. In addition, niacinamide whitening access is relatively… Longchang Chemical
Medicine News 10 Nov 2023 Maximizing Livestock Potential: The Comprehensive Application of Creatine Monohydrate in Fattening Pig Production 1. Introduction: Livestock production stands at the intersection of science and agriculture, with continuous efforts to enhance efficiency, sustainability, and… Longchang Chemical
plasticizer 07 Nov 2023 Can plasticizer ATBC be used in UV INKS? UV inks have become a vital component in the modern printing industry due to their rapid curing, environmental advantages, and… Longchang Chemical
plasticizer 26 Oct 2023 Can plasticizer ATBC be used in nail polish? Nail polish, a cosmetic product cherished for its ability to adorn and protect nails, requires a combination of ingredients to… Longchang Chemical
plasticizer 23 Oct 2023 What is the price trend for Citric Acid, the raw material for ATBC? What is the price trend for Citric Acid, the raw material for plasticizer ATBC? I. 2023 first half of the… Longchang Chemical
Medicine News 19 Oct 2023 Can I still drink creatine after it expires? How useful is creatine to our fitness population? To understand these questions, we first need to know one of the… Longchang Chemical
Medicine News Creatine monohydrate 17 Oct 2023 Unlocking the Power of Creatine Monohydrate: Types, Functions, Performance Standards, Dosages, and More Creatine monohydrate, a popular supplement in the world of fitness and sports nutrition, has gained significant attention for its potential… Longchang Chemical
plasticizer 28 Sep 2023 Flame retardant TCPP raw material yellow phosphorus market analysis In September, the market price of yellow phosphorus firstly rose and then fell, and the overall decline was dominated.In the… Longchang Chemical
plasticizer 27 Sep 2023 What is the difference between the plasticizer DOP and DOTP? Difference between plasticizer DOP and DOTP 1、Introduction of both DOP plasticizer: the chemical name is dioctyl phthalate, it is a… Longchang Chemical
Pharmaceutical intermediates 19 Sep 2023 What are the selection conditions for coating solvents? Vapor phase cleaning, the workpiece is washed, rinsed and dried in the solvent vapor layer, and the workpiece is not… Longchang Chemical
plasticizer 11 Sep 2023 How can enterprises do a good job in plasticiser pollution prevention and control? The use of plasticisers can improve plasticity, ensure processing efficiency, in a number of industries with a wide range of… Longchang Chemical
plasticizer 06 Sep 2023 What is the difference between internal and external plasticizing and what are their plasticizing principles? The production of plastic products can not be separated from the use of plasticizers, because only the use of PVC… Longchang Chemical
plasticizer 04 Sep 2023 What are the applications and development trends of environmentally friendly plasticizers? With increased environmental awareness and the need for sustainable development, environmentally friendly plasticizers are becoming an important concern for the… Longchang Chemical
plasticizer 02 Sep 2023 What is the role of plasticizers in glue? As a common adhesive, glue is widely used in industrial production and daily life. Plasticizers are a class of commonly… Longchang Chemical
plasticizer 29 Aug 2023 What is the difference between epoxidized linseed oil and solvent? Epoxy linseed oil as a new type of plasticizer, plasticizing process in plastics can be seen as the resin and… Longchang Chemical
plasticizer 28 Aug 2023 Hot toys plasticizers exceed the standard, how to choose children’s toys? Many parents will want to give their children a gift, children like nothing more than toys. But the news broke… Longchang Chemical
plasticizer 24 Aug 2023 What does plasticizer flash point mean? What is the test method? The production of plastic products can not be separated from the use of plasticizers, different plasticizers in the selection, reference… Longchang Chemical
plasticizer 21 Aug 2023 Do you know TOTM plasticizer? TOTM plasticizers are mainly used in the production of 105 degree Celsius grade heat-resistant wire and cable materials as well… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 17 Aug 2023 Anti-blue light paint good partner of blue light absorber With the rapid development of electronic technology products, tablet PCs, laptops, cell phones and other electronic products have become an… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 07 Aug 2023 What are the characteristics of water-based wheel baking paint? As of the end of March 2023, the domestic automobile ownership of 320 million vehicles, more than 34 million newly… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 26 Jul 2023 How do leveling agents work? 1. Overview of leveling After the construction of paint, there is a flow and drying film-forming process, and then gradually… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 24 Jul 2023 What are the principles and applications of wetting agents? I. The concept of wetting agent The basic feature of the molecular structure of the wetting agent is that one… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 18 Jul 2023 How to choose a dispersant? I. Selection of main resin for dispersion Resin, especially the resin for grinding, plays a key role in the preparation… Longchang Chemical
UV light curing series 17 Jul 2023 Where to buy uv ink defoamer? uv ink in the modern industry is very widely used, it has a fast drying speed, colour variety, good gloss,… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 10 Jul 2023 What is the light aging protection of UV absorbers for coatings? UV absorbers and light stabilizers are effective in slowing down the light aging behavior of cured coatings. The addition of… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 30 May 2023 nucleating agent Definition of nucleating agent Nucleating agent is a new functional additive applied to polyethylene, polypropylene and other incompletely crystallized plastics… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 16 May 2023 How to choose antioxidant? In the selection of antioxidants to pay attention to the cooperation between antioxidants, antioxidants and other heat, light stabilizers, etc..… Longchang Chemical
UV light curing series 13 Apr 2023 What happened to the bubbles in the nail polish? First, the nails are not cleaned up; second, the base gel is not used properly, too thin or too thick;… Longchang Chemical
UV light curing series 12 Apr 2023 How do levelling agents level the paint? 1、Flattening agent definition Leveling agent is a common coating additives, it can promote the coating in the drying process to… Longchang Chemical
UV light curing series 05 Apr 2023 What is the use of levelling agents as a common coating aid? 1. What is the use of levelling agents as a common coating aid? The main function of paint is to… Longchang Chemical
UV light curing series 04 Apr 2023 UV spray defoamer: which links to blistering can be solved UV paint is a transparent coating, the role is to spray or roll coating on the surface of the substrate… Longchang Chemical
UV light curing series 30 Mar 2023 What is the effect of thinner on paint gloss? Paint itself is divided into high gloss, glossy, matte, flat, no light, etc. These are the range of gloss decided… Longchang Chemical
UV light curing series 28 Mar 2023 What are the advantages of high temperature inks? How to choose a good high temperature ink is also a key issue, the current addition of a new high… Longchang Chemical
UV light curing series 23 Mar 2023 What are the three components that determine the performance of a coating? Definition of paint A coating is a material that has fluidity, forms a thin film after being applied to the… Longchang Chemical
UV light curing series colorful powder coating and test tubes on white background 21 Mar 2023 How to solve the caking problem of powder coating? Powder coatings have the tendency to caking at a certain temperature, which is mainly due to the softening of the… Longchang Chemical
UV light curing series 15 Mar 2023 How to mix the color of ink? What are the precautions? Ink hue blending is an important job before printing, but also a very abstract work. Simple color three primary colors,… Longchang Chemical
UV light curing series 13 Mar 2023 What are the ten reasons why the ink is not always scraped clean in the printing process? Ink is an important material for printing, it is essential in the printing industry by printing the pattern text, etc.… Longchang Chemical
UV light curing series 07 Mar 2023 How to use nail polish for nail art? What are the types of nail polish? 1. Base coat: It is a layer of resin glue that is applied on the nail surface before doing nail… Longchang Chemical
UV light curing series 03 Mar 2023 What should I pay attention to when mixing paint colors? In addition to the protective function, another important function of paint is the decorative role. Different colors of paint add… Longchang Chemical
UV light curing series 01 Mar 2023 How to solve the bubbles produced by the paint? With the rapid development of the coating industry, the variety of coatings, grade upgrade, people put forward higher requirements for… Longchang Chemical
UV light curing series 27 Feb 2023 What are the main reasons for the drying speed of water-based coatings? Fast drying is the most frequently heard customer requirement for waterborne coatings. Due to the uniqueness of its molecular structure,… Longchang Chemical
UV light curing series 24 Feb 2023 What is the difference between liquid coating and solid coating? 1、Liquid coating coating technology 1.1、Brushing Brush coating is the most widely used, but the coating efficiency is low, the production… Longchang Chemical
UV light curing series 22 Feb 2023 How to solve the problems in paint storage and construction? With the reform of China's housing system, the market of architectural coatings has developed rapidly, and some foreign companies have… Longchang Chemical
UV light curing series 20 Feb 2023 How to prevent excessive emulsification of ink? 1, the impact of ink emulsification on printing If the ink emulsification is just right, indicating that the water and… Longchang Chemical
Catalysts & Chemical Auxiliary Agents WE-D982V / Defoamer 17 Feb 2023 Water-based inks are prone to blistering, defoamer in water-based inks Water-based inks are prone to blistering, defoamer in water-based inks Water-based ink, can be diluted with water or ethanol, can… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 15 Feb 2023 What will happen if too much defoamer is added to the paint? What will happen if too much defoamer is added to the paint? For the problem of foam generated by the… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 13 Feb 2023 What is the difference between thin coat powder coatings and conventional powder coatings? The advantages of powder coating are that a single coating can get a thick coating film (50~150μm), high production efficiency,… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 10 Feb 2023 What are the applications of antioxidants, light stabilizers and the combination of both in coatings? This paper systematically introduces the types of light stabilizers and antioxidants, studies antioxidants, light stabilizers and their application in powder… Longchang Chemical
Catalysts & Chemical Auxiliary Agents about longchang 09 Feb 2023 How to distinguish the difference in the use of ink by ink viscosity? In the packaging printing industry, often use a variety of inks, but different inks have different roles, from the viscosity… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 01 Feb 2023 Powder coating storage, construction environment, light loss phenomenon and treatment The storage of powders has a great impact on their quality. The storage of powder will generally be in a… Longchang Chemical
Catalysts & Chemical Auxiliary Agents irgacure 819 Appearance 27 Jan 2023 How to solve the PCB circuit board photoresist white oil yellowing? Printed circuit board photoresist white oil belongs to the printed circuit board photoresist ink, and photoresist ink has many common… Longchang Chemical
Catalysts & Chemical Auxiliary Agents Tinuvin 783 (UV Light stabilizer 783) appearance (2) 25 Jan 2023 How to improve the weatherability of powder coatings through antioxidants and light stabilizers? With the rapid development of national economy, the application of powder coating in outdoor is becoming more and more common.… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 20 Jan 2023 How to solve the ink caused by the dirty plate, flower plate, paste plate phenomenon? A, the ink viscosity is too large and the phenomenon of flower plate. Ink formula viscosity is too large, in… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 18 Jan 2023 What are the factors and methods affecting the curing of coatings? Coating curing is the process of coating being applied to the coated object and forming a dry coating film (including… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 18 Jan 2023 Must collect the 61 common sense paint! 1、Why is it best to use primer for the bottom filling in the painting process? A: Because primer is designed… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 13 Jan 2023 No matter what kind of printing method can not be separated from the ink No matter what kind of printing method is inseparable from the ink, this has become an inherent concept, and inkless… Longchang Chemical
Catalysts & Chemical Auxiliary Agents MBP-Appearance 12 Jan 2023 UV machine printing troubleshooting Failure 1: After the machine is turned on CP2000 window display oil circuit failure, the fault signal light flashes. Inspection… Longchang Chemical
Catalysts & Chemical Auxiliary Agents irgacure 819 Appearance 09 Jan 2023 UV coating applied to sports shoes In recent years , water-based, high-solids, 3D tactile coatings1 have been a great success on the market, with its main… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 07 Jan 2023 What are the six additives commonly used in UV coatings? UV cationic and UV free base materials are very different, but the overall composition is similar. The cationic system is… Longchang Chemical
Catalysts & Chemical Auxiliary Agents irgacure 819 Appearance 06 Jan 2023 How to apply alicyclic epoxy resin in UV light curing coating? UV curing technology is broadly divided into UV free radical and UV cationic systems, UV cationic coatings with excellent processing… Longchang Chemical
Catalysts & Chemical Auxiliary Agents lcnacure® BP / Benzophenone CAS 119-61-9 05 Jan 2023 How to solve the problem of incomplete curing of UV coating? UV coating technology has become the mainstay of green coatings because of its environmental friendliness, high efficiency and high hardness,… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 04 Jan 2023 How to select resin efficiently in UV coating formulation? The role of oligomer in UV coatings Oligomer: Oligomer used in light-curing coatings, also known as prepolymer. In earlier years,… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 02 Jan 2023 A complete list of must-know paint terminology Color appearance: color appearance is the color and appearance of the paint when the can is opened in a homogeneous… Longchang Chemical
Catalysts & Chemical Auxiliary Agents irgacure 819 Appearance 31 Dec 2022 What does the amount of photoinitiator component affect the UV ink? Photoinitiator is also an important component of UV ink, which determines the light curing rate of UV ink. The choice… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 30 Dec 2022 What is the classification and mechanism of polymerization inhibitors? Free radical polymerization of monomers in the storage or processing and purification process, often due to the role of light,… Longchang Chemical
Catalysts & Chemical Auxiliary Agents TPO-L-Appearance 26 Dec 2022 UV monomers and common polymerization inhibitors Light-curing product is a special product with very high polymerization activity. Its main components - oligomer and active diluent are… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 22 Dec 2022 What is BIPB 96? The vulcanizing agent BIBP belongs to the peroxide class cross-linking agent, in the vulcanization process for free radical cross-linking, high… Longchang Chemical
Catalysts & Chemical Auxiliary Agents TMPTA Monomer Appearance 17 Dec 2022 What is the effect of UV monomer on UV-curable oxygen blocking? 1.2 Sample preparation and testing The monomer and initiator were weighed accurately, where the monomer was not purified, and mixed… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 16 Dec 2022 How to choose ATBC plasticizer? 1. See what you need? To choose ATBC plasticizer first of all to determine their needs and plasticizer use coincide,… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 15 Dec 2022 What is the effect of plasticizers in inks on adhesion? Inks with too high a plasticizer content or low linker molecular weight may become soft and sticky after drying, and… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 14 Dec 2022 What is the relationship between plastic additives and plasticizers? Plastic additives, also known as plastic additives, are some compounds that must be added to polymers (synthetic resins) to improve… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 13 Dec 2022 How do plasticizers affect the adhesion of inks on PVC? With a new round of experimental proofs, this time we will add 2 parts of transparent additives to 1 part… Longchang Chemical
Catalysts & Chemical Auxiliary Agents TMPTA Monomer Appearance 22 Nov 2022 What is the role of uv ink and eb resin? Ink is one of the main consumables in the printing industry and a major factor in the reproduction of originals.… Longchang Chemical
Catalysts & Chemical Auxiliary Agents TMPTA Monomer Appearance 21 Nov 2022 What is the difference between UV ink and EB ink curing? The same are electromagnetic wave rays of UV ultraviolet and EB electron ray curing, and IR infrared heating curing method… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 20 Nov 2022 What are the differences between the 3 common types of light-curing 3D printing technologies? Light-curing molding is the earliest 3D printing and molding technology, and it is also the more mature 3D printing technology… Longchang Chemical
Catalysts & Chemical Auxiliary Agents Speedcure ITX (2-Isopropylthioxanthone) Appearance 14 Nov 2022 What is the solution for slow curing of cationic photoinitiators? Cationic light-curing systems have the advantages of low volume shrinkage, no oxygen-blocking, long life of the active center, and the… Longchang Chemical
Catalysts & Chemical Auxiliary Agents irgacure 819 Appearance 02 Nov 2022 Comparison of UV free radical and cationic curing Ultraviolet (UV) curing coating is a new environmentally friendly coating first developed by Germany in the late 1960s, which has… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 30 Oct 2022 How to inhibit oxygen blocking? Oxygen blocking is also called oxygen inhibition. Due to the high concentration of oxygen in the surface layer, the oxygen… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 26 Oct 2022 Photoinitiator ITX CAS 5495-84-1 Introduction UV photoinitiator serves as the key raw ingredient for light-curing substances such as UV coatings, UV inks, UV adhesives,… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 19 Oct 2022 Photoinitiator 819 CAS 162881-26-7 Introduction Photoinitiators are an essential component in UV-LED curing materials and play a significant part in influencing the rate at… Longchang Chemical
Catalysts & Chemical Auxiliary Agents lcnacure® BP / Benzophenone CAS 119-61-9 13 Oct 2022 Photoinitiator BP / Benzophenone CAS 119-61-9 Introduction Benzophenone is a chemical that has both a carbonyl group and a hydroxyl group in its structure. Its chemical… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 05 Oct 2022 UV LED curing machine curing light oil product effect real test One, UV varnish (UV varnish) Introduction 1, UV varnish is a transparent coating, also called UV varnish by some people.… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 04 Oct 2022 What is the difference between light-curing coatings and solvent-based coatings? Light-curing coating is an efficient, environmentally friendly, energy-saving and high-quality material, and the related technology has been rapidly developed in… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 03 Oct 2022 Why is it necessary to add a polymerization inhibitor to light-curing coatings? In the production process of coatings, some types of coatings contain high polymerization activity of substances, easy to be affected… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 01 Oct 2022 What is UV solder resist ink? How to choose the corresponding photoinitiator? Printed circuit board on the copper circuit made, the board surface in addition to solder joints, the rest of the… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 30 Sep 2022 CHLUMINIT® TPO / Photoinitiator TPO / Lucirin TPO / Irgacure TPO CAS 75980-60-8 Introduction The manufacture of polymers is impossible without photopolymerization, which is mostly comprised of environmentally benign processes (low energy consumption,… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 28 Sep 2022 What are bio-based plasticizers and what are the advantages of our CHLUMIFLEX® BBP ? Plasticizers make PVC materials soft and easy to process, and are widely used in plastic production. Phthalates plasticizers account… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 24 Sep 2022 The addition protection effect of the combination of different light stabilizers The main product categories of light stabilizers used for organic polymers are UV absorbers, hindered amine light stabilizers, excited state… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 23 Sep 2022 UV oligomers used in light-curing coatings Light-curing coatings used oligomer is also known as prepolymer, which has a small molecular weight, has the characteristics of polymerization… Longchang Chemical
Catalysts & Chemical Auxiliary Agents TMPTA Monomer Appearance 14 Sep 2022 UV light curing coating weather resistance UV coatings are used in many surface coating fields for their excellent surface properties: high strength, high hardness, high abrasion… Longchang Chemical
Catalysts & Chemical Auxiliary Agents How to ensure the uniformity of UV UV curing ink ink color 13 Sep 2022 How to ensure the uniformity of UV UV curing ink ink color? Printing is an important part of ensuring the uniformity of ink color, but also a process with strong technical requirements.… Longchang Chemical
Catalysts & Chemical Auxiliary Agents Application characteristics of LED curing system 12 Sep 2022 Application characteristics of LED curing system The difference between LED curing and high pressure mercury curing and application characteristics Output waveform is different. 1. Traditional UV… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 10 Sep 2022 Application of dual curing system Output waveform is different. 1. Traditional UV mercury lamp curing machine produces UV light looks bright, high heat, the spectrum… Longchang Chemical
Catalysts & Chemical Auxiliary Agents Types of flexible plastic packaging ink and the advantages of alcohol-soluble polyurethane flexible packaging ink 09 Sep 2022 Types of flexible plastic packaging ink and the advantages of alcohol-soluble polyurethane flexible packaging ink Plastic flexible packaging ink is the ink used for printing on plastic films, such as PET, OPP, PE and other… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 03 Sep 2022 Flame retardant principle, the main types of flame retardant Flame retardants are used to improve the flame-resistance of molecular materials by increasing the ignition point of molecular materials or… Longchang Chemical
Catalysts & Chemical Auxiliary Agents How to whiten the paint 02 Sep 2022 How to whiten the paint? The whiteness of white paint mainly depends on the whiteness and hue of the titanium dioxide or other white color… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 31 Aug 2022 Matching requirements for UV inks when applied to different printed products UV ink is a common environmentally friendly ink, its application involves the printing of tobacco, wine, food and other packaging,… Longchang Chemical
Photoinitiator UV ink 28 Aug 2022 UV cigarette packet ink quality testing standards UV ink without solvents, its components can almost all participate in the reaction, compared to the traditional ink in environmental… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 26 Aug 2022 The principle of coating matting and coating matting agent should have the characteristics Gloss is one of the important physical properties of the coating film, expressed in terms of gloss. Can make the… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 18 Aug 2022 2025 The Complete Guide To the efficacy of water-based ink additivest A wide range of water-based ink additives, according to the purpose of use can be divided into three categories: manufacturing… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 17 Aug 2022 Characteristics, types and applications of UV absorbers UV absorber is such a class of substances, it can absorb sunlight or fluorescent light source in the ultraviolet wavelength… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 15 Aug 2022 The whitening principle and important applications of fluorescent whitening agent In the textile industry, the whiteness of the fiber itself often fails to meet the aesthetic requirements of people, especially… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 14 Aug 2022 How to choose pigments for coatings from the seven performance indicators of pigments? There are various pigments for coatings, how to choose a certain pigment for coatings? Here are seven performance indicators of… Longchang Chemical
Laboratory News 12 Aug 2022 Introduction and principles of common laboratory instrument analysis 1.Infrared absorption spectrometer, IR Analytical principle: absorption of infrared light energy, causing vibrational, rotational energy level jumps of molecules with… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 11 Aug 2022 2025 The Complete Guide To UV curing ink in use in the problem I. What happens when the ink is over-cured? There is a theory that when the surface of the ink is… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 08 Aug 2022 Classification of construction machinery coatings and the performance requirements of primer, medium and topcoat Construction machinery coating is an important part of China's coating industry. Construction machinery coating can be classified into primer, medium… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 07 Aug 2022 Photoinitiators of benzophenone and benzotriazole UV absorbers Various types of light stabilizers have different light stabilization mechanisms. The protective mechanism of UV absorbers is based on the… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 06 Aug 2022 The role of surfactants and their various applications in coatings The application of surfactants in coatings is an additive, which is an indispensable component in the production of coatings. It… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 05 Aug 2022 Structure, principle of action and common types of hindered amine light stabilizers (HALS) The function of free radical trapping agents is mainly to capture the free radicals generated during the photoaging of coatings,… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 04 Aug 2022 Basic theory of surfactants (3) Washing in the usual sense refers to the process of removing dirt from the surface of a carrier. In washing,… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 02 Aug 2022 Basic theory of surfactants (2) Foam plays an important role in the washing process. Foam is a dispersion system of gas dispersed in liquid or… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 01 Aug 2022 Basic theory of surfactants (I) I. Several concepts about surfactants. The property that can reduce the surface tension of the solvent is called surface activity,… Longchang Chemical
Laboratory News 27 Jul 2022 Brief description of the types of PET nucleating agents and the effect of nucleating agents on the crystalline properties of PET There are three main types of nucleating agents for PET, namely inorganic nucleating agents, organic nucleating agents and polymeric nucleating… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 24 Jul 2022 Brief description of the role of antioxidants in plastics and their selection principles The addition of suitable antioxidants in plastic processing can stop or delay the ageing process, thus extending the service life… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 23 Jul 2022 What are the elements in selecting UV oligomers for light-curing coating formulations? Light curing coatings are also known as UV curing coatings, which use UV light as the energy source for curing… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 22 Jul 2022 Selection of photoinitiators in UV coating formulations Free radical photoinitiators are divided into two main categories according to the mechanism of action of the photoinitiator to produce… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 21 Jul 2022 UV light curing powder coatings and their advantages The main feature of UV powder coatings is that the process is divided into two distinct phases, with no early… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 20 Jul 2022 Main performance characteristics and areas of application of acrylate coatings I. Main properties of acrylic paints. 1, with good gloss, can be made into water white varnish or pure white… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 14 Jul 2022 Common types of epoxy resin curing agent and its curing mechanism This article briefly summarizes the common types of epoxy resin curing agent and its curing mechanism. 1, alkaline class curing… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 13 Jul 2022 What are the performance advantages of TPO waterproofing roll-roofing material? With the development of national dual carbon goals, green building materials, photovoltaic roofing and other related fields have received widespread… Longchang Chemical
Catalysts & Chemical Auxiliary Agents TPO-L-Appearance 12 Jul 2022 Brief description of hydrogen-capturing photoinitiators and their two main categories Hydrogen-capturing photoinitiators, also known as type II photoinitiators, are generally dominated by aromatic ketone structures and also include certain thick-ringed… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 10 Jul 2022 UV ink basic components: photosensitizer and light sensitizer Photosensitizers are molecules that absorb light energy and then transfer the energy to the photoinitiator, and return to their initial… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 09 Jul 2022 How to measure the goodness of the resin in the ink? There are many indicators to measure the physical and chemical properties of a resin. For the ink industry, the following… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 08 Jul 2022 UV ink basic components: photoinitiator Photoinitiators are molecules that can absorb radiation and produce active intermediates with the ability to initiate polymerization by photochemical changes.… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 06 Jul 2022 UV ink composition: photosensitive monomer UV inks and UV varnishes need to have the viscosity to adapt to the coater when coating, generally by adding… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 01 Jul 2022 How to reduce the shrinkage of UV glue? What are the methods? In the curing process of UV adhesive there is a gelation process. Before gelation, the system is still fluid despite… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 28 Jun 2022 20 organic reaction mechanisms that are essential to understand for synthetic experiments Baeyer-Villiger reaction reaction mechanism peracid first undergoes nucleophilic addition to the carbonyl group, and then a hydrocarbon group on the… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 27 Jun 2022 Proper selection of protective gloves from a study of the permeability of different acrylate monomers In support of the Environmental Protection Agency's Office of Toxic Substances' Pre-Production Notification (PMN) program, three glove materials were evaluated… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 21 Jun 2022 Apa saja monomer dan resin akrilat yang digunakan dalam pelapis logam UV? Aplikasi pelapis UV untuk logam (DTM) memerlukan resin dengan keseimbangan sifat elastisitas dan ketangguhan untuk memastikan bahwa artikel dapat menahan… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 18 Jun 2022 What is the role of plasticizers? What is the mechanism of action? In the eyes of the chemical industry, additives are always a supporting role. But experienced engineers and technicians know that… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 13 Jun 2022 What is uvled line light source? What is the scope of its application? Many people know about linear light sources, but are not sure what uvled… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 12 Jun 2022 What are the component raw materials of light-curing UV coatings? Ultraviolet curing (UV) coating is a new type of environmentally friendly coating. It has an extremely fast drying rate and… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 04 Jun 2022 UV monomer various viscosity approximate conversion table centipoise. UV monomer centipoise (cP) is the Z-small unit of dynamic viscosity, dynamic viscosity indicates that the liquid flows under… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 28 May 2022 Agesin Additives applied to printing inks Agesin Additives applied to printing inks Longchang Chemical
Catalysts & Chemical Auxiliary Agents 26 May 2022 Application of leveling agents in coatings Application of leveling agents in coatings 1. Leveling agent is divided into two kinds, one is organic leveling agent, the… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 25 May 2022 What are the common additives used in ink classification? Ink additives are used to adjust the ink to adapt to different printing conditions of auxiliary materials. There are many… Longchang Chemical
Uncategorized 23 May 2022 2023 The Complete Guide To Photoresist Photoresist, also known as photoresist, is a light-sensitive mixed liquid. It consists of photoinitiator, photoresist resin, monomer, solvent and other… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 22 May 2022 5 types of UV light-curing adhesives UV adhesives can be broadly divided into 2 categories with substrates (tape, double-sided adhesive), and without substrates (liquid glue), the… Longchang Chemical
Catalysts & Chemical Auxiliary Agents irgacure 819 Appearance 19 May 2022 2025 The Complete Guide To Principles of free radical photoinitiator application Photoinitiator as one of the key raw materials in the photopolymerization formula, there are some common principles to pay attention… Longchang Chemical
Catalysts & Chemical Auxiliary Agents TPO-L-Appearance 17 May 2022 2023 The Complete Guide To Analysis of factors influencing the efficiency of photoinitiator polymerization In recent years, photoinitiated polymerization has been widely used in light-curing adhesives, light-curing inks, light-curing coatings, 3D printing and other… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 15 May 2022 2025 The Complete Guide To Improvement and future trends of UV technology Light (UV) curing technology is a highly efficient, environmentally friendly, energy-saving, high-quality new technology for the 21st century, widely used… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 14 May 2022 2025 The Complete Guide To UV light curing: The Ultimate Guide Light curing technology is a highly efficient, environmentally friendly, energy-saving, high-quality material surface technology, known as the new technology for… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 11 May 2022 2023 The Complete Guide To Liquid Sodium silicate: The Ultimate Guide How to apply Liquid Sodium silicate on concrete? How much liquid sodium silicate is added to 100 pounds of cement?… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 03 May 2022 The Complete Guide To TPGDA Monomer CAS 42978-66-5 A growing number of people are becoming aware of photo curing macromolecular material as environmental protection regulations become stricter, prohibiting… Longchang Chemical
News Longchang Chemical Factory 30 Apr 2022 Longchang Chemical April 30, 2022 Project Announcement On the one hand, it plans to invest in the construction of 60,000 tons/year acrylic acid and 50,000 tons/year butyl… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 25 Apr 2022 IBOA Monomer CAS 5888-33-5 Exo-1, 7, 7-trimethylbicyclo [2.2.1] hept-2-yl acrylate (isobornyl acrylate) also called IBOA Monomer is a versatile acrylic monomer. It is utilized… Longchang Chemical
Catalysts & Chemical Auxiliary Agents TMPTA Monomer Appearance 21 Apr 2022 The Complete Guide To the efficacy of TMPTA Monomer TMPTA Monomer Due to its excellent recyclability, TMPTA Monomer is a highly sought-after industrial monomer in the chemical industry. Photopolymer… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 18 Apr 2022 What is the purpose of the withdrawal of Japanese acrylic acid companies from the production field? On April 8, the old Japanese petrochemical giant Idemitsu Kosan announced that it had decided to withdraw from the acrylic… Longchang Chemical
Laboratory News 6100-Appearance-2 09 Apr 2022 What knowledge should frontline workers in chemical plants have? Develop good operational behavior (1) Routine inspection before operation The mechanical equipment must always be kept in normal operation. Routine… Longchang Chemical
Laboratory News 28 Mar 2022 How can chemical companies prevent dust poisoning hazards? Dust-proof and anti-virus management 1. Enterprises should pay attention to the key to doing a good job of dust and… Longchang Chemical
UV light curing series 21 Mar 2022 What is the difference between UV resin and UV glue? UV resin and UV glue are two different chemical. UV resin is an oligomer and is used as a solvent… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 17 Mar 2022 What are the types of surfactants? How surfactants work? Surfactant is widely used in the fine chemical industry. It refers to a substance that can significantly reduce the surface… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 14 Mar 2022 Research on the principle and application of UV monomer inhibitor 1. Definition of UV monomer polymerization blocker A substance that can completely terminate the free radical polymerization reaction of alkene… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 10 Mar 2022 Research on the application of hyperbranched waterborne polyurethane acrylate in 3D printing Ultraviolet light (UV) curing technology is a new high-efficiency, energy-saving and environmentally friendly new technology developed in the 1960s. %… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 08 Mar 2022 where to buy plasticizer? how plasticizer works? What is a plasticizer? Plasticizer is a kind of polymer material additives widely used in industrial production line, also known… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 03 Mar 2022 Notes on paint testing and analysis! Q: What are the categories of paints? A: According to the form, it can be divided into solid paint and… Longchang Chemical
Soresyn Resin 01 Mar 2022 What is the impact of the Russian-Ukrainian war on the global energy and chemical industry? Prices of bulk products such as petrochemicals will rise for sure. The economic sanctions imposed on Russia by European and… Longchang Chemical
Soresyn Resin 28 Feb 2022 Why is C5 petroleum resin used for butyl inner tube production? At present, the inner tube products on the market are all produced and processed with butyl rubber or butyl reclaimed… Longchang Chemical
Soresyn Resin 24 Feb 2022 UV Ink Additives – DCPD Hydrogenated Petroleum Resins In the composition of printing inks, there are often polymers or condensates of some organic compounds. So today we will… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 21 Feb 2022 Analysis of Factors Affecting Molecular Weight of Polybutyl Acrylate Leveling Agent 1. Introduction: The role of leveling agent: When the powder coating is melted and leveled, there are two interfaces of… Longchang Chemical
News about longchang 17 Feb 2022 What is it like to work in a chemical factory? The current situation of work in chemical factory. Newly recruited fresh college students (one degree) + graduate students, more men… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 14 Feb 2022 What is UV Ink? What is the difference between uv ink and ordinary ink? What is UV ink? UV ink means that under the action of ultraviolet light, the photosensitive substances in the system… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 10 Feb 2022 Data introduction of commonly used UV monomers in UV inkjet There are many kinds of UV light curing monomers, and the classification method is also complicated. For example, according to… Longchang Chemical
Catalysts & Chemical Auxiliary Agents Packaging 09 Feb 2022 Definition and classification of UV inks and their applications 1. Overview of Ultraviolet Curing Drying (UV) Ink UV curing drying flexo ink, referred to as UV ink, UV ink… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 03 Feb 2022 What is water-based UV resin? In the late 1960s, ultraviolet (UV) curing technology was developed and applied to the coating resin industry as a new… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 26 Jan 2022 Process and Advantages of UV Curing Powders MDF is easy to process and has a homogeneous and homogeneous surface. Natural wood can also be powder coated, but… Longchang Chemical
Catalysts & Chemical Auxiliary Agents 17 Jan 2022 What is the relationship between the odor and structure of UV monomers? Acrylate is widely used in the manufacture of various polymer materials, mainly because of its low temperature flexibility, heat resistance,… Longchang Chemical No Comments
Photoinitiator 13 Jan 2022 Why use a composite photoinitiator in light curing formulating? Photoinitiators are a very important component of photocurable formulations and are a source of free radicals. However, excessive use of… Longchang Chemical No Comments
Catalysts & Chemical Auxiliary Agents 10 Jan 2022 Making latex gloves by blending nitrile and PVC 1. The production process of PVC gloves: ingredients→standstill→vacuum degassing→primary dipping→primary plasticization→secondary dipping→secondary plasticization→baking→cooling→rolling lip→automatic demoulding→inspection→automatic packaging→ Product storage. The main… Longchang Chemical No Comments
Laboratory News 05 Jan 2022 How to prepare test samples? What machines are there? Nuclear magnetic resonance spectrometer:(1) The purity of the sample submitted for inspection should generally be >95%, free of iron filings,… Longchang Chemical No Comments
Laboratory News 03 Jan 2022 Chemical companies are entering a new stage of high-quality development With the transformation and relocation of hazardous chemical companies entering a critical period this year, the process of retreating from… Longchang Chemical No Comments
Medicine News 29 Dec 2021 What is cinnamaldehyde? where does cinnamon come from? Cinnamon, a seasoning that looks very "Western", but it is indeed very popular in Europe and the United States. Because… Longchang Chemical No Comments
Catalysts & Chemical Auxiliary Agents 27 Dec 2021 Commonly used reagents-ethyl vinyl ether 【English name】Ethyl Vinyl Ether 【Molecular formula】 C4H8O 【Molecular Weight】72.11 【CAS Registration Number】[109-92-2] 【Structural formula】CH3CH2OCH=CH2 [Physical properties] bp 33 oC, d… Longchang Chemical No Comments
Catalysts & Chemical Auxiliary Agents 24 Dec 2021 The composition of super glue 502-ethyl cyanoacrylate Super glue is a common commodity in daily life and has a wide range of uses. In the subconscious, 502… Longchang Chemical No Comments
Catalysts & Chemical Auxiliary Agents 22 Dec 2021 What should I do if the glass plug is stuck? The reason why the ground plug can't be opened In the process of organic synthesis reaction, sometimes the grounding instrument… Longchang Chemical No Comments
Catalysts & Chemical Auxiliary Agents 21 Dec 2021 What qualifications are required for general industrial solid waste disposal? When general industrial solid waste (waste plastic, waste rubber, waste paper, and non-hazardous waste) generated by existing factories is handed… Longchang Chemical No Comments
Catalysts & Chemical Auxiliary Agents 20 Dec 2021 Sewage treatment chemicals commonly used in various sewage Classification and application of conventional coagulation agents Iron salt, aluminum salt and their compound medicaments Iron salt: polymeric ferric sulfate… Longchang Chemical No Comments
Medicine News 17 Dec 2021 What are cosmetics and what types are there? Do you know the ingredients and their functions in cosmetics? What are cosmetics? At present, there is no unified definition of the concept of cosmetics in the world. The EU’s… Longchang Chemical No Comments
Catalysts & Chemical Auxiliary Agents 16 Dec 2021 Industrial water treatment chemicals – Scale and corrosion inhibitor Scale and corrosion inhibitor is a kind of industrial water treatment agent, it is mainly used in circulating cooling water… Longchang Chemical No Comments
Laboratory News 15 Dec 2021 Can the reagents that have been stored for a long time be used? How to determine the expiry date of the reagent The effective date of the reagent is an important factor that… Longchang Chemical No Comments
Uncategorized 14 Dec 2021 Viewing the “Hyaluronic Acid” Market from the Medical Microplastic Surgery First acquaintance with hyaluronic acid Hyaluronic acid is the common name of hyaluronic acid. It is a non-sulfur linear mucopolysaccharide… Longchang Chemical No Comments
Catalysts & Chemical Auxiliary Agents 10 Dec 2021 Reasons for catalyst deactivation and various regeneration conditions Today 90% of the chemical industry contains catalyst processes, which increase the reaction rate and selectivity in production. With the… Longchang Chemical No Comments
Laboratory News 09 Dec 2021 How to store laboratory chemical reagents? Chemical reagents must be stored properly, because the quality of the reagents directly affects the accuracy of the experimental results.… Longchang Chemical No Comments
Laboratory News 08 Dec 2021 There is a risk of explosion when m-CPBA and DMF react together DMF is one of the most widely used solvents in organic synthesis, and is also known as a universal solvent.… Longchang Chemical No Comments
Catalysts & Chemical Auxiliary Agents 07 Dec 2021 How to choose the correct crosslinking agent? What is a crosslinking agent? 1. Co-crosslinking agent refers to a type of auxiliary agent that improves the crosslinking efficiency… Longchang Chemical No Comments
Laboratory News 06 Dec 2021 In the organic synthesis experiment, how many tricks have you done for the common mistakes of the newcomers? When climbing the board, forget to take out the TLC board until the solvent climbs to the top.Forgot to weigh… Longchang Chemical No Comments
Laboratory News 02 Dec 2021 Which of the four realms of scientific research do you belong to? There are four realms in life: natural realm, utilitarian realm, moral realm, heaven and earth realm. The following is Mr.… Longchang Chemical No Comments
Laboratory News 01 Dec 2021 How do chemical plants prevent freezing and condensation in winter? Winter anti-freezing and anti-condensation work in chemical factory is the main means to ensure safe production. In order to prevent… Longchang Chemical No Comments
Soresyn Resin 29 Nov 2021 2022 The Complete Guide To C5 petroleum resin C5 petroleum resin is a tackifying resin. It has occupied an important position as a tackifying resin. Among them, the… Longchang Chemical No Comments
Catalysts & Chemical Auxiliary Agents 22 Nov 2021 2022 The Complete Guide To Plasticizer: The Ultimate Guide Plasticizer is a polymer material additive widely used in industrial production, also known as plasticizer. It is added to the… Longchang Chemical No Comments
Catalysts & Chemical Auxiliary Agents 08 Nov 2021 What is TBC? TBC Usage What is TBC? TBC molecular formula C18H32O7, molar mass 360·44 g/mol, is a colorless or light yellow liquid, can be… Longchang Chemical No Comments
Catalysts & Chemical Auxiliary Agents 03 Nov 2021 What is Acetyl tributyl citrate / ATBC? Acetyl tributyl citrate is an organic substance with a chemical formula of C20H34O8. It is a colorless, odorless, oily liquid,… Longchang Chemical No Comments
Laboratory News 02 Nov 2021 How should the waste liquid of the laboratory be handled? 1) Definition of waste liquid: Drugs with expired shelf life, high-concentration solutions, standard solutions and improperly configured solutions that were… Longchang Chemical No Comments
Catalysts & Chemical Auxiliary Agents 08 Oct 2021 What is Flame retardant TEP? Flame retardant TEP technology is to make non-flame retardant materials have flame retardant properties. It is a kind of material… Longchang Chemical No Comments
Medicine News 19 Aug 2021 2022 The Complete Guide To MCT Oil Powder: The Ultimate Guide What is MCT Oil Powder? As a protein energy bar, a low-fat meal replacement, and a muscle-building protein powder, Mct… Longchang Chemical No Comments
Catalysts & Chemical Auxiliary Agents 24 Jul 2021 2024 The Complete Guide To Tcpp Flame Retardant: The Ultimate Guide Tcpp flame retardant is a common and useful acronym that indicates that the chemical substance in question is classified as… Longchang Chemical No Comments
Catalysts & Chemical Auxiliary Agents 09 Jul 2021 Environmental occurrence of TCPP Dust Reсent studies hаve demоnstrаted thаt the deteсtiоn frequenсies (DFs) оf TCPP in indооr dust sаmрles аre >96% (аs high… Longchang Chemical No Comments
Catalysts & Chemical Auxiliary Agents 08 Jul 2021 What is TCPP? Intrоduсtiоn Flаme retаrdаnts (FRs) аre а grоuр оf сhemiсаls thаt аre widely emрlоyed in соnsumer рrоduсts tо reduсe the flаmmаbility… Longchang Chemical No Comments
Catalysts & Chemical Auxiliary Agents 07 Jul 2021 Whаt is TMPTA? 1. TMРTА belоngs tо роlyоl асrylаte, whiсh is аn imроrtаnt multifunсtiоnаl mоnоmer with high асtivity. The trimethyl рrорylene dilutes асid… Longchang Chemical No Comments
Catalysts & Chemical Auxiliary Agents 02 Jul 2021 How to choose sunscreen? The summer is scorching, and many places across the country are very hot and hot. As a chemical practitioner, of… Longchang Chemical No Comments
Enzyme News 29 Apr 2021 Experimental parameters of naringinase immobilized on magnetic silicon based materials 1. Detection method of naringinase enzyme activity 1-1 Spectrophotometer method The para nitrophenol spectrophotometric method uses p-nitrophenol- α-rhamnoside ( pNP-… Longchang Chemical No Comments
Enzyme News 22 Apr 2021 Overview of the Methods of Immobilizing Enzymes on Magnetic Biopolymer Microspheres Magnetic biopolymer microspheres are a novel composite material that combines biological materials and inorganic magnetic materials to form magnetically responsive… Longchang Chemical No Comments
Enzyme News 14 Apr 2021 Overview of enzyme immobilization methods In the previous article, we mentioned that the bitter substances in citrus fruits are mainly naringin, which can be gradually… Longchang Chemical No Comments
Enzyme News 30 Mar 2021 What is naringinase? Introduction of naringinase and the application overview Earlier we mentioned the conversion of rutin and isoquercitrin. Among the various conversion methods, the conversion method with the best… Longchang Chemical No Comments
Enzyme News 24 Mar 2021 Preparation and pharmacological activity of rutin and isoquercitrin 1. Introduction to Rutin and Isoquercitrin Rutin, also known as vitamin P, has a molecular formula of C27H30O16. The chemical… Longchang Chemical No Comments
Enzyme News 10 Mar 2021 Summary of different glycoside hydrolase reactions At present, glycoside hydrolases are used in the study of the preparation of a variety of active glycosides and aglycons.… Longchang Chemical No Comments
Enzyme News 09 Mar 2021 Biotransformation of saponins Saponins are a class of glycosides in which aglycones are triterpene or sterane compounds. They are one of the effective… Longchang Chemical No Comments
Enzyme News 03 Mar 2021 Overview of glycoside hydrolase My name is Harold, and I still remember the shock I felt when I first observed the crystallization of the… Longchang Chemical No Comments
Laboratory News 20 Jan 2021 How to deal with poisoning in the experiment? What are the appropriate first aid measures if an accident occurs accidentally during the experiment? 1. Glass cuts and other… Longchang Chemical No Comments
Medicine News 19 Jan 2021 What is allantoin used for? Allantoin is not only a derivative of urea, but also a compound of urea. The crystal of allantoin is showed… Longchang Chemical No Comments
Medicine News 18 Jan 2021 Properties and synthetic routes of allantoin and its derivatives Due to its wide application, the demand for allantoin has been increasing year by year . The chemical synthesis method… Longchang Chemical No Comments
Medicine News 12 Dec 2020 How does minoxidil work in Treat hair loss?what is minoxidil used for? As we all know, Minoxidil was first developed by Upjohn in the 1950s. They found that Minoxidil is a good… Longchang Chemical No Comments
Uncategorized 02 Dec 2020 Why use special agents for desalination? What reagents are used for seawater desalination? The development of seawater desalination began in the 1960s. After decades of development, seawater desalination technology has been relatively mature.… Longchang Chemical 15 Comments
Catalysts & Chemical Auxiliary Agents 09 Nov 2020 Study shows that expired ultraviolet stabilizer (Tinuvin 770) can be used in polypropylene Properties of polymers due to their high molecular weight, and anything causing a change in the molecular weight of the… Longchang Chemical 14 Comments
Catalysts & Chemical Auxiliary Agents 10 Oct 2020 Domestic research progress of hindered amine light stabilizers In recent years, in order to further improve the light stability performance of hindered amine light stabilizers and broaden their… Longchang Chemical 2 Comments
Uncategorized 09 Oct 2020 The migration effect of microwave on plastic additives Plastic is one of the most frequently encountered materials in daily life. It is deeply loved by consumers for its… Longchang Chemical 16 Comments
Uncategorized 07 Oct 2020 Synthesis and usage of Light Stabilizer 770 Polymers are inevitably exposed to sunlight or strong fluorescence during processing and use, resulting in a decline in their physical… Longchang Chemical 3 Comments
Uncategorized 06 Oct 2020 Study on the bleaching process of slow-release solid chlorine dioxide used in cotton fabrics The grey cloth used in the medium-thickness pure cotton bonding lining has the characteristics of compactness and thickness, low cotton… Longchang Chemical 8 Comments
Uncategorized 30 Sep 2020 Inhibition of Chlorine dioxide on Alternaria botrytis 1. Chlorine dioxide is a safe and efficient oxidative disinfectant, which has been widely used in food production, drinking water,… Longchang Chemical 2 Comments
Uncategorized 23 Sep 2020 Notice of Shellac Storage Precautions Aging and agglomeration are prominent problems in the storage of shellac resin products. During long-term storage of shellac resin, due… Longchang Chemical No Comments
Uncategorized 21 Sep 2020 What is shellac flakes? Shellac flakes is a forest by-product and important industrial raw material with very economic value. Many people regard the transliteration… Longchang Chemical No Comments
Laboratory News 14 Sep 2020 Analytical Instruments purchased by Longchang Chemical Laboratory(2) 1. NMR English name: Nuclear Magnetic Resonance SpectroscopyModel: ARX400Manufacturer: BrukerOrigin: Switzerland Technical indicators: resolution: H, C are less than or… Longchang Chemical No Comments
Laboratory News 11 Sep 2020 Analytical Instruments purchased by Longchang Chemical Laboratory(1) 1. ICP English name: Inductively Coupled Plasma-Atomic Emission SpectrometerModel: Prodigy 7Manufacturer: Leeman CompanyOrigin: United States Technical indicators: Optical resolution: ≤0.007nm… Longchang Chemical No Comments
Uncategorized Artificial-blood-vessel-material 10 Sep 2020 Artificial blood vessel material The human blood circulatory system includes three parts: blood, blood vessels, and heart. The blood vessels serve as bridges to… Longchang Chemical No Comments
Catalysts & Chemical Auxiliary Agents Optical brightener OB Structure 05 Sep 2020 How to distinguish between fluorescent whitening agent OB and fluorescent whitening agent OB-1? 1. Optical brightener OB and Optical brightener OB-1 are completely different chemicals 2. Optical brightener OB and Optical brightener OB-1,… Longchang Chemical No Comments
Uncategorized Thermoelectric power generation materials 1 26 Aug 2020 What is the material for thermoelectric power generation? 1. In recent years, with the continuous development of mobile communication technology, material microprocessing technology, and information technology, the continuous… Longchang Chemical No Comments
Uncategorized thermoelectric power generation 1 24 Aug 2020 How thermoelectric power generation work 1. Today, the environment is deteriorating and energy is becoming more and more tense. Researchers have been looking for green… Longchang Chemical No Comments
Uncategorized fluorescent whitening agent appearance 24 Aug 2020 Why the fluorescent whitening agent looks yellow and the solution In order to improve the whiteness of the production, we want to increase the amount of whitening agent to achieve… Longchang Chemical No Comments