{"id":6333,"date":"2023-12-15T08:30:43","date_gmt":"2023-12-15T08:30:43","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=6333"},"modified":"2026-04-28T10:42:23","modified_gmt":"2026-04-28T10:42:23","slug":"main-components-of-uv-adhesive","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/pt\/main-components-of-uv-adhesive\/","title":{"rendered":"Quais s\u00e3o os quatro principais componentes do adesivo UV e suas caracter\u00edsticas de uso?"},"content":{"rendered":"<h1>Quais s\u00e3o os quatro principais componentes do adesivo UV e suas caracter\u00edsticas de uso?<\/h1>\n<p><!-- lc-qa-start --><\/p>\n<p><strong>Quick answer:<\/strong> In most UV systems, photoinitiators are selected by balancing wavelength fit, through-cure, color control, and line speed. Buyers usually compare a blended package instead of one isolated product.<\/p>\n<p><!-- lc-qa-end --><\/p>\n<p>O adesivo UV, tamb\u00e9m conhecido como adesivo de cura por luz ultravioleta, adesivo sem sombras, adesivo fotossens\u00edvel, refere-se ao fotoiniciador na irradia\u00e7\u00e3o de luz ultravioleta para produzir radicais ativos ou c\u00e1tions, desencadeando, assim, a polimeriza\u00e7\u00e3o de mon\u00f4meros insaturados, rea\u00e7\u00f5es de liga\u00e7\u00e3o cruzada e outras rea\u00e7\u00f5es, e cura r\u00e1pida e transforma\u00e7\u00e3o.<br \/>\nO adesivo de cura UV tem as seguintes caracter\u00edsticas:<br \/>\n1, tempo de cura curto, geralmente dentro de 1 minuto de cura.<br \/>\n2, as condi\u00e7\u00f5es de cura exigem baixa temperatura, a temperatura ambiente pode ser curada;<br \/>\n3, mat\u00e9rias-primas verdes e de baixa volatilidade.<br \/>\n4, boas propriedades \u00f3pticas, boa resist\u00eancia a intemp\u00e9ries, alta transpar\u00eancia.<br \/>\n5, alta dureza, resist\u00eancia ao desgaste e retardante de chamas. Devido a essas vantagens exclusivas, os adesivos de cura ultravioleta (doravante denominados adesivos UV) foram rapidamente popularizados e amplamente utilizados.<br \/>\nEm v\u00e1rios campos industriais, como a fabrica\u00e7\u00e3o de produtos \u00f3pticos e outros componentes eletr\u00f4nicos, os adesivos UV s\u00e3o amplamente utilizados; em necessidades di\u00e1rias, como a montagem de fabrica\u00e7\u00e3o de m\u00f3veis de vidro, joias e outras ind\u00fastrias de montagem de joias, tamb\u00e9m \u00e9 comum o uso de adesivos UV. Nos \u00faltimos anos, os adesivos UV tiveram um bom progresso em pesquisa e aplica\u00e7\u00e3o, e novos avan\u00e7os foram feitos na sele\u00e7\u00e3o de mat\u00e9rias-primas e na melhoria estrutural.<br \/>\nComposi\u00e7\u00e3o e aplica\u00e7\u00e3o do adesivo UV:<br \/>\nNormalmente, o adesivo cur\u00e1vel por UV consiste em olig\u00f4meros, mon\u00f4meros reativos, fotoiniciadores, aditivos, etc. De modo geral, a propor\u00e7\u00e3o de olig\u00f4meros \u00e9 de 20% a 50%, a de mon\u00f4meros \u00e9 de 5% a 60%, a de fotoiniciadores \u00e9 de 1% a 10%, a de aditivos \u00e9 de 1% a 10%, e a propor\u00e7\u00e3o varia de acordo com as subst\u00e2ncias a serem produzidas.<\/p>\n<h2>Ingredientes do adesivo UV (a): zwitteri\u00f4nicos<\/h2>\n<p>Within the photoinitiator portion of a UV adhesive formulation, <a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-cat-261-cas-32760-80-8\/\">Cationic Photoinitiator CAT-261<\/a> is a useful product reference for formulators evaluating cationic curing pathways.<\/p>\n<p>Olig\u00f4meros, tamb\u00e9m conhecidos como olig\u00f4meros e pr\u00e9-pol\u00edmeros, s\u00e3o resinas insaturadas com liga\u00e7\u00f5es duplas que podem ser curadas com luz. Eles representam a maior propor\u00e7\u00e3o de g\u00e9is UV, geralmente de 20% a 50%, e s\u00e3o a principal propriedade da camada adesiva.<br \/>\nOs olig\u00f4meros usados em g\u00e9is UV incluem principalmente acrilatos de ep\u00f3xi, acrilatos de uretano, poli\u00e9steres insaturados etc., dos quais os acrilatos de ep\u00f3xi e os acrilatos de uretano (abreviados como PUA) cont\u00eam variedades e mat\u00e9rias-primas abundantes. A dosagem \u00e9 muito grande devido \u00e0 alta atividade e ao pre\u00e7o moderado. Os acrilatos ainda s\u00e3o os olig\u00f4meros mais usados no campo da fotopolimeriza\u00e7\u00e3o, representando cerca de 82% do mercado total.<br \/>\nAtualmente, os olig\u00f4meros est\u00e3o se movendo em dire\u00e7\u00e3o \u00e0 alta atividade, ao alto desempenho, \u00e0 baixa viscosidade e ao baixo pre\u00e7o. Para obter um pr\u00e9-pol\u00edmero de cura r\u00e1pida e baixa viscosidade, \u00e9 necess\u00e1rio considerar a taxa de cura do filme curado, a viscosidade e os fatores f\u00edsicos e qu\u00edmicos.<\/p>\n<h2>Composi\u00e7\u00e3o do adesivo UV (2): diluente reativo<\/h2>\n<p>O diluente reativo refere-se ao grau de insatura\u00e7\u00e3o ou aos grupos funcionais de v\u00e1rios mon\u00f4meros que podem ser polimerizados para participar da rea\u00e7\u00e3o de fotopolimeriza\u00e7\u00e3o, al\u00e9m de diluir e ajustar a viscosidade dos olig\u00f4meros fotopolimeriz\u00e1veis, o que favorece o revestimento. Os diluentes reativos podem realizar a rea\u00e7\u00e3o de fotopolimeriza\u00e7\u00e3o, reduzindo a volatiliza\u00e7\u00e3o da mat\u00e9ria org\u00e2nica do gel UV, com bom desempenho ambiental. Os diluentes reativos ajudam a melhorar a resist\u00eancia \u00e0 tra\u00e7\u00e3o do filme curado. A resist\u00eancia ao calor do filme curado aumenta com o aumento da funcionalidade do mon\u00f4mero; o sistema estudado tem excelente ades\u00e3o ao vidro inorg\u00e2nico.<\/p>\n<h2>Ingredientes do adesivo UV (III): Fotoiniciadores<\/h2>\n<p>Os fotoiniciadores, tamb\u00e9m conhecidos como fotossensibilizadores, geram radicais livres ao absorver a luz ultravioleta, o que desencadeia a polimeriza\u00e7\u00e3o e a liga\u00e7\u00e3o cruzada de olig\u00f4meros e diluentes reativos, curando assim o filme. Os fotoiniciadores incluem principalmente fotoiniciadores de radicais livres e fotoiniciadores cati\u00f4nicos.2 Os fotoiniciadores de radicais livres s\u00e3o o principal sistema para os g\u00e9is UV atuais, mas t\u00eam as desvantagens da inibi\u00e7\u00e3o do oxig\u00eanio e da dificuldade de curar objetos tridimensionais. Entre eles, o \u00f3xido de fosfina acil tem bom desempenho abrangente. Czech et al. Os efeitos dos fotoiniciadores derivados de benzofenona e derivados de tioxantenona nas propriedades do PSA foram investigados. Verificou-se que a for\u00e7a adesiva era: o adesivo de acrilato cur\u00e1vel por UV aumentava com a diminui\u00e7\u00e3o da concentra\u00e7\u00e3o do iniciador. Quando o iniciador (w) foi de 0,5%?1,0%, a resist\u00eancia ao descolamento do adesivo foi relativamente boa; quando o derivado de benzofenona Michelone foi usado como iniciador, o adesivo correspondente teve bom desempenho geral. A vantagem dos fotoiniciadores cati\u00f4nicos \u00e9 que, ap\u00f3s o desaparecimento da luz ultravioleta, ainda pode ocorrer \"p\u00f3s-cura\" para continuar a polimeriza\u00e7\u00e3o, dificultando o alcance da parte da luz completamente curada. Cura. Em compara\u00e7\u00e3o com os fotoiniciadores de radicais livres, os fotoiniciadores cati\u00f4nicos t\u00eam as vantagens exclusivas do pequeno volume de encolhimento, da aus\u00eancia de inibi\u00e7\u00e3o por oxig\u00eanio e da cura suficiente; no entanto, sua velocidade de cura por luz \u00e9 lenta, a variedade \u00e9 baixa e o pre\u00e7o \u00e9 alto. Grande impacto no meio ambiente.<\/p>\n<h2>Ingredientes da cola UV (quatro): aditivos<\/h2>\n<p>Para a cola UV, geralmente \u00e9 necess\u00e1rio adicionar uma variedade de aditivos para atender aos requisitos de uso, como pigmentos, agentes umectantes e dispersantes, agentes bloqueadores de polimeriza\u00e7\u00e3o. O efeito de v\u00e1rios aditivos \u00e9 significativo, o que pode n\u00e3o apenas melhorar significativamente o desempenho da UV, mas tamb\u00e9m expandir o escopo de aplica\u00e7\u00e3o e reduzir os custos.<br \/>\nOs nanomateriais inorg\u00e2nicos t\u00eam propriedades de resist\u00eancia aprimoradas. A adi\u00e7\u00e3o de nano-SiO2 aos g\u00e9is UV melhora muito o desempenho da colagem e o efeito de veda\u00e7\u00e3o. Hao Haifeng selecionou a nanos\u00edlica CYA-150 da Wuxi Jindinglong Chemical Co. Quando a fra\u00e7\u00e3o de massa \u00e9 2%, a for\u00e7a adesiva do adesivo pode ser significativamente melhorada.<\/p>\n<p>Aplica\u00e7\u00e3o do adesivo UV<\/p>\n<p>Com o desenvolvimento do adesivo de cura UV, ele tem uma ampla gama de aplica\u00e7\u00f5es e perspectivas de desenvolvimento no campo de instrumentos qu\u00edmicos, produtos qu\u00edmicos finos, tecnologia de impress\u00e3o 3D e outros campos.<br \/>\nEm termos de instrumentos qu\u00edmicos, o adesivo UV \u00e9 amplamente usado como agente de colagem de instrumentos e colagem de vidros de seguran\u00e7a. Por exemplo, uma variedade de instrumentos qu\u00edmicos, v\u00e1lvulas, usados como eletrodos de fisioterapia, adesivo sens\u00edvel \u00e0 press\u00e3o de ponto guia de fotopolimeriza\u00e7\u00e3o, fita fotossens\u00edvel UV e reparo com adesivo sens\u00edvel \u00e0 press\u00e3o, juntas multidirecionais e outras partes do adesivo s\u00e3o um grande n\u00famero de adesivos UV. No vidro de seguran\u00e7a, o adesivo UV leva apenas alguns segundos ou minutos para concluir o processo de colagem.<br \/>\nNo campo da qu\u00edmica fina, h\u00e1 cada vez mais adesivos UV usados no tratamento de unhas. Devido \u00e0 estabilidade do adesivo UV, ao curto tempo de cura, \u00e0 baixa forma\u00e7\u00e3o de espuma, ao bom nivelamento, \u00e0 aus\u00eancia de toxicidade e ao respeito ao meio ambiente, a produ\u00e7\u00e3o do adesivo de esmalte UV ter\u00e1 um mercado mais amplo. Em termos de tecnologia de impress\u00e3o 3D, a tecnologia de moldagem tridimensional por fotopolimeriza\u00e7\u00e3o SLA \u00e9 amplamente utilizada como adesivo UV, principalmente com o uso de resina fotossens\u00edvel l\u00edquida, de modo que o material tridimensional resultante seja uma prototipagem r\u00e1pida, de alta precis\u00e3o, com superf\u00edcie lisa e detalhada do objeto. No campo de alguns materiais qu\u00edmicos, o adesivo UV foi aplicado com sucesso e amadureceu. Na impress\u00e3o de embalagens qu\u00edmicas, o adesivo UV tornou-se um importante material de impress\u00e3o para tabaco de alta qualidade, \u00e1lcool, produtos de sa\u00fade, cosm\u00e9ticos e embalagens de alimentos.<\/p>\n<p><!-- lc-commercial-start --><\/p>\n<h2>A practical selection route for photoinitiator-related projects<\/h2>\n<p>When technical buyers or formulators screen photoinitiators, the most useful decision frame is usually cure quality plus application fit: which package cures reliably, keeps appearance acceptable, and still works under the lamp, film thickness, and substrate conditions of the actual process.<\/p>\n<ul>\n<li><strong>Match the package to the lamp first:<\/strong> mercury lamps, UV LEDs, and visible-light systems can rank the same photoinitiators very differently.<\/li>\n<li><strong>Check depth cure and surface cure separately:<\/strong> a film that feels dry on top can still be weak underneath.<\/li>\n<li><strong>Balance yellowing with reactivity:<\/strong> the strongest deep-cure route is not always the best commercial choice if color or migration risk becomes unacceptable.<\/li>\n<li><strong>Use the final formula as the benchmark:<\/strong> pigment load, monomer package, and film thickness can all change the apparent ranking of the same initiator.<\/li>\n<\/ul>\n<h3>Recommended product references<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-tpo-l-cas-84434-11-7\/\">CHLUMINIT TPO-L<\/a>:<\/strong> A strong low-yellowing reference for LED-oriented UV systems.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-bp-cas-119-61-9\/\">CHLUMINIT BP<\/a>:<\/strong> A practical type-II benchmark when benzophenone chemistry is under review.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-cat-261-cas-32760-80-8\/\">CHLUMINIT 261<\/a>:<\/strong> A direct cationic-photoinitiator reference when cationic curing routes are being screened.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/iboa-monomer-cas-5888-33-5\/\">CHLUMICRYL IBOA<\/a>:<\/strong> A strong low-viscosity monomer reference when hardness and good flow both matter.<\/li>\n<\/ul>\n<h3>FAQ for buyers and formulators<\/h3>\n<p><strong>Why are blended photoinitiator packages so common?<\/strong><br \/>Because one product may control yellowing or lamp fit well while another improves cure depth or line-speed performance, so the full package is often stronger than any single grade.<\/p>\n<p><strong>Should incomplete cure always be solved by adding more initiator?<\/strong><br \/>Not automatically. The real limitation may be the lamp, film thickness, pigment shading, or the rest of the reactive system rather than simple under-dosage.<\/p>\n<p><!-- lc-commercial-end --><\/p>","protected":false},"excerpt":{"rendered":"<p>UV adhesive, also known as ultraviolet light curing adhesive, shadowless adhesive, photosensitive adhesive, refers to the photoinitiator in the ultraviolet light irradiation to produce active radicals or cations, thereby triggering<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[143],"tags":[],"class_list":["post-6333","post","type-post","status-publish","format-standard","hentry","category-uv-light-curing-series"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What are the four main components of UV adhesive and the characteristics use? 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