{"id":5649,"date":"2022-10-04T12:14:57","date_gmt":"2022-10-04T12:14:57","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=5649"},"modified":"2026-04-28T10:42:09","modified_gmt":"2026-04-28T10:42:09","slug":"what-is-the-difference-between-light-curing-coatings-and-solvent-based-coatings","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/pt\/what-is-the-difference-between-light-curing-coatings-and-solvent-based-coatings\/","title":{"rendered":"Qual \u00e9 a diferen\u00e7a entre os revestimentos de cura por luz e os revestimentos \u00e0 base de solvente?"},"content":{"rendered":"<h1><strong>Qual \u00e9 a diferen\u00e7a entre os revestimentos de cura por luz e os revestimentos \u00e0 base de solvente?<\/strong><\/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 revestimento fotopolimeriz\u00e1vel \u00e9 um material eficiente, ecologicamente correto, de alta qualidade e que economiza energia, e a tecnologia relacionada tem se desenvolvido rapidamente nos \u00faltimos anos devido \u00e0s suas boas caracter\u00edsticas.<\/p>\n<p>Os principais componentes dos revestimentos fotopolimeriz\u00e1veis geralmente incluem: fotoiniciadores, diluentes ativos, olig\u00f4meros e v\u00e1rios aditivos. Os revestimentos fotopolimeriz\u00e1veis sofrem rea\u00e7\u00f5es fotoqu\u00edmicas sob irradia\u00e7\u00e3o de luz, o que \u00e9 diferente do papel das subst\u00e2ncias termoquimicamente reativas. \u00c9 por esse motivo que as propriedades do revestimento fotopolimeriz\u00e1vel tamb\u00e9m s\u00e3o diferentes.<\/p>\n<p>As caracter\u00edsticas da tecnologia de fotopolimeriza\u00e7\u00e3o.<\/p>\n<p>1. A fotopolimeriza\u00e7\u00e3o s\u00f3 precisa ser realizada em temperatura ambiente, o que pode atender \u00e0 constru\u00e7\u00e3o de produtos que n\u00e3o s\u00e3o adequados para o m\u00e9todo de aquecimento e secagem.<\/p>\n<p>Os revestimentos convencionais \u00e0 base de solvente levam horas ou at\u00e9 dias para secar. Os produtos fotopolimerizados s\u00e3o mais produtivos, economizam espa\u00e7o para empilhar produtos semiacabados e atendem melhor \u00e0s exig\u00eancias da produ\u00e7\u00e3o automatizada em larga escala. Ao mesmo tempo, a qualidade dos produtos fotopolimerizados tamb\u00e9m \u00e9 mais f\u00e1cil de garantir.<\/p>\n<p>2. Al\u00e9m do aumento da produtividade e da economia de energia, a tecnologia de fotopolimeriza\u00e7\u00e3o tamb\u00e9m permite n\u00edveis mais altos de qualidade do revestimento, como propriedades mec\u00e2nicas e brilho.<\/p>\n<p>Em compara\u00e7\u00e3o com os revestimentos \u00e0 base de solvente, a energia de cura por luz UV utilizada \u00e9 equivalente a apenas 1\/10~1\/5 da primeira, os revestimentos de cura por luz em temperatura ambiente e as caracter\u00edsticas de cura r\u00e1pida a frio tamb\u00e9m s\u00e3o incompar\u00e1veis com outros revestimentos. Os revestimentos do tipo \"baking\" e os revestimentos em p\u00f3 precisam ser aquecidos ap\u00f3s a pintura para promover a evapora\u00e7\u00e3o do solvente e a rea\u00e7\u00e3o de reticula\u00e7\u00e3o qu\u00edmica.<\/p>\n<p>3. Devido ao sistema \"sem\" solvente, os usu\u00e1rios n\u00e3o precisam instalar instala\u00e7\u00f5es de esgoto caras.<\/p>\n<p>Os revestimentos convencionais \u00e0 base de solvente geralmente cont\u00eam 30% a 70% de solventes inertes, que quase todos evaporam na atmosfera quando o filme seca, causando riscos ambientais consider\u00e1veis.<\/p>\n<p>Al\u00e9m disso, a fotopolimeriza\u00e7\u00e3o requer apenas a energia de radia\u00e7\u00e3o usada para excitar o fotoiniciador, ao contr\u00e1rio da fotopolimeriza\u00e7\u00e3o t\u00e9rmica tradicional, que requer o aquecimento do substrato, do material, do espa\u00e7o ao redor e da evapora\u00e7\u00e3o para remover o calor da \u00e1gua ou dos solventes org\u00e2nicos usados para a dilui\u00e7\u00e3o, economizando assim muita energia.<\/p>\n<p>Aplica\u00e7\u00f5es da tecnologia de fotopolimeriza\u00e7\u00e3o.<\/p>\n<p>Qu\u00edmica, mec\u00e2nica, eletr\u00f4nica, ind\u00fastria leve, comunica\u00e7\u00f5es, automotiva e outros campos. Os revestimentos fotopolimeriz\u00e1veis incluem bambu, pisos de madeira, pain\u00e9is decorativos, m\u00f3veis e outros revestimentos de madeira UV; pe\u00e7as automotivas, instrumentos, CDs, pain\u00e9is decorativos, cart\u00f5es de cr\u00e9dito e outros revestimentos pl\u00e1sticos UV; ferrugem de a\u00e7o, a\u00e7o com revestimento colorido, latas de ferro impressas, latas e outros revestimentos de metal UV; papel decorativo, revestimento de superf\u00edcie escrita.<\/p>\n<p>Os revestimentos fotopolimeriz\u00e1veis reduzem a polui\u00e7\u00e3o do ar, o perigo para os seres humanos e o risco de inc\u00eandio. A produ\u00e7\u00e3o de revestimentos fotopolimeriz\u00e1veis cresceu rapidamente nos \u00faltimos anos. As informa\u00e7\u00f5es mostram que, em 2011, a produ\u00e7\u00e3o de revestimentos fotopolimeriz\u00e1veis da China foi de 75.177 toneladas, um aumento de 39% em rela\u00e7\u00e3o a 2010, um aumento de 131% em rela\u00e7\u00e3o a 2007. Por ser uma \"tecnologia verde\" ecologicamente correta, os revestimentos fotopolimeriz\u00e1veis s\u00e3o uma tecnologia priorit\u00e1ria nos Estados Unidos, na Europa, no Jap\u00e3o etc., mas tamb\u00e9m est\u00e3o alinhados com as necessidades crescentes do p\u00fablico na China.<\/p>\n<p><!-- lc-commercial-start --><\/p>\n<h2>How formulators usually evaluate this photoinitiator topic<\/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-819-irgacure-819-cas-162881-26-7\/\">CHLUMINIT 819<\/a>:<\/strong> Useful when a formulation needs stronger absorption and deeper cure support.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-184-cas-947-19-3\/\">CHLUMINIT 184<\/a>:<\/strong> A classic free-radical benchmark for fast surface cure in many UV systems.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/cas-270586-78-2\/\">CHLUMINIT TMO<\/a>:<\/strong> A valuable comparison point when lower yellowing or TPO-replacement discussions 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>Light-curing coating is an efficient, environmentally friendly, energy-saving and high-quality material, and the related technology has been rapidly developed in recent years due to its good characteristics. The main components<\/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-5649","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>What is the difference between light-curing coatings and solvent-based coatings? - Longchang Chemical<\/title>\n<meta name=\"description\" content=\"Light-curing coating is an efficient, environmentally friendly, energy-saving and high-quality material, and the related technology has been rapidly dev...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/longchangchemical.com\/pt\/what-is-the-difference-between-light-curing-coatings-and-solvent-based-coatings\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is the difference between light-curing coatings and solvent-based coatings? 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