{"id":6093,"date":"2023-05-16T13:27:50","date_gmt":"2023-05-16T13:27:50","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=6093"},"modified":"2026-04-28T10:42:18","modified_gmt":"2026-04-28T10:42:18","slug":"how-to-choose-antioxidant","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/it\/how-to-choose-antioxidant\/","title":{"rendered":"Come scegliere l'antiossidante?"},"content":{"rendered":"<h1><strong>Come scegliere l'antiossidante?<\/strong><\/h1>\n<p><!-- lc-qa-start --><\/p>\n<p><strong>Quick answer:<\/strong> For antioxidant, UV absorber, and HALS topics, formulators usually compare long-term protection, process stability, and color control together because those priorities do not always point to the same additive.<\/p>\n<p><!-- lc-qa-end --><\/p>\n<p>In the selection of antioxidants to pay attention to the cooperation between antioxidants, antioxidants and other heat, light stabilizers, etc.. Then it is necessary to think about the antioxidant with the most, most antioxidants have a most suitable concentration scale. Within this scale, followed by the amount of antioxidants, antioxidant effectiveness added to the maximum. Beyond this scale, it will bring adverse effects. The amount of antioxidant depends on the nature of the plastic, the power of the antioxidant, synergistic effect, the conditions of use of the product and the cost of the offer and many other factors. Usually amine antioxidant activity than phenolic antioxidants, so there should be greater antioxidant function, but the former in the air under the effect of oxygen and light will change color, itself is mostly colored, and toxic, so the use in plastics to be careful. In commercial formulations, <a href=\"https:\/\/longchangchemical.com\/it\/product\/chlumiao-1010-cas-6683-19-8\/\">Antiossidante 1010<\/a> is often paired with <a href=\"https:\/\/longchangchemical.com\/it\/product\/chlumiao-168-cas-31570-04-4\/\">Antioxidant 168<\/a> to balance long-term stability and processing protection. Now the primary consideration of antioxidant cooperation.<\/p>\n<p>(l) aggiunte ed effetti.<\/p>\n<p>L'uso di una variet\u00e0 di antiossidanti pu\u00f2 promuovere le rispettive caratteristiche ed effetti, aumentando l'effetto totale. Ad esempio, la diversa resistenza all'evaporazione o allo spazio dei fenoli inibiti e quando utilizzati, possono promuovere il loro effetto antiossidante in un'ampia gamma di temperature, l'effetto \u00e8 potenziato. Se nella formula viene utilizzato un solo tipo di antiossidante, \u00e8 inevitabile che partecipi in quantit\u00e0 maggiore, causando intense reazioni di ossidazione ad alte concentrazioni, il che non \u00e8 consentito. Ma la scelta di diversi antiossidanti a bassa concentrazione e l'uso, non solo per raggiungere l'obiettivo desiderato, ma anche per prevenire l'ossidazione intensa, e portare avanti il suo effetto additivo.<\/p>\n<p>(2) Effetto sinergico.<\/p>\n<p>Quando due attivit\u00e0 diverse dell'antiossidante principale e l'uso, l'alta attivit\u00e0 dell'antiossidante per dare atomi di idrogeno, in modo che l'ossidazione della catena attiva per fermare; e bassa attivit\u00e0 dell'antiossidante pu\u00f2 dare l'alta attivit\u00e0 dell'antiossidante per fornire atomi di idrogeno, in modo che si rigenera e sviluppa un effetto antiossidante durevole, in modo che l'effetto antiossidante \u00e8 molto buona.<\/p>\n<p>Quando si utilizzano antiossidanti principali e ausiliari, occorre prestare attenzione allo sviluppo di effetti sinergici. Ad esempio, l'antiossidante principale si limita a fornire atomi di idrogeno, gli atomi di idrogeno possono trasformare i radicali liberi perossidi in idroperossidi, arrestando la reazione a catena; inoltre, gli idroperossidi e l'antiossidante ausiliario hanno un effetto di scissione dei perossidi e generano prodotti di stabilizzazione inattivi. In questo modo si rallenta notevolmente la velocit\u00e0 delle reazioni di ossidazione, aggiungendo l'effetto antiossidante. Ne sono un esempio le poliolefine ampiamente utilizzate nel sistema antiossidante 264 e DLPT.<\/p>\n<p>Una molecola antiossidante ha due o pi\u00f9 funzioni di stabilizzazione diverse, poich\u00e9 l'effetto sinergico, come ad esempio l'antiossidante fenolico inibito contenente zolfo, ha un arresto della reazione a catena e un agente di differenziazione del perossido dell'effetto a due strati, questo antiossidante pu\u00f2 rafforzare l'effetto antiossidante, \u00e8 un antiossidante pi\u00f9 desiderabile.<\/p>\n<p>L'antiossidante e lo stabilizzatore di calore e luce devono essere selezionati per avere un effetto sinergico e cercare di evitare effetti opposti. Ad esempio, la maggior parte degli antiossidanti amminici e fenolici, in presenza di nerofumo, riduce significativamente l'efficacia dell'effetto opposto, che pu\u00f2 essere dovuto al nerofumo che catalizza direttamente l'ossidazione degli antiossidanti, impoverendo alcuni degli antiossidanti causati da. L'antiossidante legato al tioetere e il nerofumo hanno un effetto sinergico. Pertanto, il primo dovrebbe essere abbandonato e il secondo dovrebbe essere utilizzato.<\/p>\n<p><!-- lc-commercial-start --><\/p>\n<h2>A practical selection route for antioxidant, UV absorber, and HALS packages<\/h2>\n<p>Most stabilizer decisions work best when they are treated as package decisions rather than single-product decisions. Technical buyers usually get the strongest answer by reviewing long-term heat aging, process stability, weather exposure, and color sensitivity together.<\/p>\n<ul>\n<li><strong>Separate processing protection from long-term stability:<\/strong> the best additive for melt history is not always the same one that gives the best service-life retention.<\/li>\n<li><strong>Use synergy deliberately:<\/strong> many polymer and coating systems perform best when primary and secondary stabilizers are paired intentionally.<\/li>\n<li><strong>Review color and clarity requirements:<\/strong> clear, pale, food-contact, or white systems often need a tighter package than dark industrial products.<\/li>\n<li><strong>Check the real aging condition:<\/strong> heat, UV, humidity, and outdoor exposure can each change which stabilizer route is commercially strongest.<\/li>\n<\/ul>\n<h3>Recommended product references<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/it\/product\/chlumiao-1010-cas-6683-19-8\/\">CHLUMIAO 1010<\/a>:<\/strong> A widely used primary antioxidant benchmark for long-term thermal stability.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/it\/product\/chlumiao-168-cas-31570-04-4\/\">CHLUMIAO 168<\/a>:<\/strong> A practical process-stability reference when hydroperoxide control matters.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/it\/product\/chlumiao-1076-cas-2082-79-3\/\">CHLUMIAO 1076<\/a>:<\/strong> A familiar phenolic-antioxidant benchmark when balancing efficiency and formulation fit.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/it\/product\/light-stabilizer-123-tinuvin-123-cas-129757-67-1\/\">CHLUMILS UV-123<\/a>:<\/strong> A strong HALS reference for weatherability-focused screens in coatings and polymers.<\/li>\n<\/ul>\n<h3>FAQ for buyers and formulators<\/h3>\n<p><strong>Why are stabilizer packages often stronger than a single additive?<\/strong><br \/>Because different products can protect different parts of the degradation pathway, so the package often covers more risk than one grade alone.<\/p>\n<p><strong>Does adding more antioxidant or UV stabilizer always improve performance?<\/strong><br \/>Not necessarily. Over-dosing can increase cost and sometimes create side effects, so most systems perform best inside a tested dosage window.<\/p>\n<p><!-- lc-commercial-end --><\/p>","protected":false},"excerpt":{"rendered":"<p>In the selection of antioxidants to pay attention to the cooperation between antioxidants, antioxidants and other heat, light stabilizers, etc.. Then it is necessary to think about the antioxidant with<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114],"tags":[],"class_list":["post-6093","post","type-post","status-publish","format-standard","hentry","category-catalysts-chemical-auxiliary-agents"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to choose antioxidant? - Longchang Chemical<\/title>\n<meta name=\"description\" content=\"In the selection of antioxidants to pay attention to the cooperation between antioxidants, antioxidants and other heat, light stabilizers, etc.. 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