{"id":5858,"date":"2023-01-18T14:16:38","date_gmt":"2023-01-18T14:16:38","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=5858"},"modified":"2026-04-28T10:42:13","modified_gmt":"2026-04-28T10:42:13","slug":"what-are-the-factors-and-methods-affecting-the-curing-of-coatings","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/pt\/what-are-the-factors-and-methods-affecting-the-curing-of-coatings\/","title":{"rendered":"Quais s\u00e3o os fatores e m\u00e9todos que afetam a cura dos revestimentos?"},"content":{"rendered":"<h1><strong>Quais s\u00e3o os fatores e m\u00e9todos que afetam a cura dos revestimentos?<\/strong><\/h1>\n<p><!-- lc-qa-start --><\/p>\n<p><strong>Resposta r\u00e1pida:<\/strong> Na maioria dos sistemas UV, os fotoiniciadores s\u00e3o selecionados equilibrando a adequa\u00e7\u00e3o do comprimento de onda, a cura completa, o controle de cor e a velocidade da linha. Os compradores geralmente comparam um pacote com v\u00e1rios fotoiniciadores em vez de um produto isolado.<\/p>\n<p><!-- lc-qa-end --><\/p>\n<p>A cura do revestimento \u00e9 o processo de aplica\u00e7\u00e3o do revestimento ao objeto revestido e a forma\u00e7\u00e3o de um filme de revestimento seco (incluindo filme duro e macio) por v\u00e1rios meios.<\/p>\n<p>Os fatores que afetam a velocidade de cura s\u00e3o principalmente o tipo de revestimento, a espessura do revestimento, o m\u00e9todo de cura, as condi\u00e7\u00f5es de cura, o equipamento de cura e os protocolos de cura espec\u00edficos, etc.<\/p>\n<p>&nbsp;<\/p>\n<h2><strong>(1) Tipo de revestimento<\/strong><\/h2>\n<p>Sob as mesmas condi\u00e7\u00f5es de cura, o tipo de tinta varia muito em termos de velocidade de cura. De modo geral, a tinta vol\u00e1til tem cura r\u00e1pida, a tinta \u00e0 base de \u00f3leo tem cura lenta, a tinta polim\u00e9rica \u00e9 muito diferente, a tinta polim\u00e9rica na tinta fotossens\u00edvel tem cura mais r\u00e1pida, enquanto outras tintas polim\u00e9ricas ficam mais entre a tinta vol\u00e1til e a tinta \u00e0 base de \u00f3leo.<\/p>\n<p>&nbsp;<\/p>\n<h2><strong>(2) Espessura do revestimento<\/strong><\/h2>\n<p>No processo de acabamento, o revestimento basicamente n\u00e3o \u00e9 formado de uma s\u00f3 vez, geralmente usando o m\u00e9todo de v\u00e1rias camadas finas (como a laca \u00e0 base de \u00f3leo geralmente \u00e9 aplicada uma vez a cerca de 35\u03bcm, a laca de nitrocelulose a cerca de 15\u03bcm, etc.). Sob as mesmas condi\u00e7\u00f5es de cura, o revestimento fino na cura, o estresse interno \u00e9 pequeno, a forma\u00e7\u00e3o de menos defeitos de revestimento; enquanto o revestimento \u00e9 muito espesso, o estresse interno \u00e9 maior, f\u00e1cil de produzir rugas e outros defeitos, e devido \u00e0 evapora\u00e7\u00e3o do solvente, o encolhimento do revestimento, resultando em brilho desigual, n\u00e3o cura interna, etc. A pr\u00e1tica comprovou que, al\u00e9m da tinta de poli\u00e9ster, as propriedades f\u00edsicas do filme de tinta formado por v\u00e1rias camadas s\u00e3o melhores em compara\u00e7\u00e3o com a mesma espessura de filme de tinta formado por uma \u00fanica camada.<\/p>\n<p>&nbsp;<\/p>\n<h2><strong>(3) Condi\u00e7\u00f5es de cura<\/strong><\/h2>\n<p>1- Temperatura de cura A temperatura de cura exerce uma influ\u00eancia decisiva na velocidade de cura da maioria dos revestimentos de tinta. Quando a temperatura de cura \u00e9 muito baixa, a evapora\u00e7\u00e3o do solvente e a rea\u00e7\u00e3o qu\u00edmica s\u00e3o lentas, e o revestimento \u00e9 dif\u00edcil de ser curado. O aumento da temperatura pode acelerar a evapora\u00e7\u00e3o do solvente e a evapora\u00e7\u00e3o da \u00e1gua, acelerar a rea\u00e7\u00e3o de oxida\u00e7\u00e3o e a rea\u00e7\u00e3o termoqu\u00edmica do revestimento, e a velocidade de cura do revestimento \u00e9 acelerada, mas a temperatura n\u00e3o pode ser aumentada indefinidamente, porque a temperatura e a velocidade de cura n\u00e3o s\u00e3o proporcionais uma \u00e0 outra, Al\u00e9m disso, a temperatura no processo de cura do revestimento tamb\u00e9m tem um impacto sobre o substrato, o substrato \u00e9 aquecido, causando altera\u00e7\u00f5es no teor de umidade, encolhimento e deforma\u00e7\u00e3o do substrato e at\u00e9 mesmo empenamento, rachaduras e volatilidade do revestimento de tinta, Se a temperatura de cura exceder 60 \u2103, o solvente evapora ferozmente, a camada superficial seca rapidamente, o vapor interno do solvente atinge a camada superficial e \u00e9 f\u00e1cil produzir bolhas, portanto, ao usar m\u00e9todos de cura artificial, a temperatura da superf\u00edcie geralmente n\u00e3o excede 60 \u2103.<\/p>\n<p>&nbsp;<\/p>\n<h2><strong>Cura da tinta, com os tr\u00eas m\u00e9todos comumente usados a seguir<\/strong><\/h2>\n<p>&nbsp;<\/p>\n<p>I. Cura natural.<\/p>\n<p>Em condi\u00e7\u00f5es naturais, o uso da convec\u00e7\u00e3o de ar para fazer a evapora\u00e7\u00e3o do solvente, a polimeriza\u00e7\u00e3o por oxida\u00e7\u00e3o ou a rea\u00e7\u00e3o com o agente de cura para formar um filme, adequado para revestimentos vol\u00e1teis, revestimentos de secagem ao ar e revestimentos de cura com agente de cura e outros revestimentos de autossecagem, a qualidade da secagem \u00e9 muito afetada pelas condi\u00e7\u00f5es ambientais.<\/p>\n<p>1\u3001Cura por evapora\u00e7\u00e3o de solvente<\/p>\n<p>\u00c9 o solvente que evapora atrav\u00e9s da superf\u00edcie do revestimento, deixando os s\u00f3lidos do revestimento e sendo anexados \u00e0 superf\u00edcie do objeto a ser revestido, formando um filme de revestimento s\u00f3lido e seco.<\/p>\n<p>2\u3001Cura por oxida\u00e7\u00e3o a ar<\/p>\n<p>\u00c9 o uso de oxig\u00eanio no ar para fazer o filme de revestimento seco, o oxig\u00eanio no ar e a rea\u00e7\u00e3o de reticula\u00e7\u00e3o do revestimento para formar um filme de revestimento seco.<\/p>\n<p>3\u3001Cura por rea\u00e7\u00e3o t\u00e9rmica ou rea\u00e7\u00e3o qu\u00edmica<\/p>\n<p>Esse tipo de revestimento \u00e9 aquecido ou quimicamente reticulado sob a a\u00e7\u00e3o de um catalisador (incluindo assimilador), e os v\u00e1rios componentes formadores de filme no revestimento se fundem uns com os outros e se reticulam para formar uma estrutura de malha tridimensional do filme de revestimento.<\/p>\n<p>&nbsp;<\/p>\n<h2><strong>Em segundo lugar, a cura por aquecimento tradicional.<\/strong><\/h2>\n<p>A secagem de acordo com a temperatura de secagem pode ser dividida em secagem a baixa temperatura (abaixo de 100\u00b0C, principalmente para secagem do revestimento de superf\u00edcie de revestimentos de autossecagem ou materiais com baixa resist\u00eancia ao calor). Secagem em temperatura m\u00e9dia (100 a 150\u00b0C, principalmente para a cura de revestimentos em filmes por rea\u00e7\u00e3o de polimeriza\u00e7\u00e3o por condensa\u00e7\u00e3o). Secagem em alta temperatura (acima de 150\u00b0C, usada principalmente para revestimento em p\u00f3, revestimento eletrofor\u00e9tico, etc.)<\/p>\n<p>1\u3001Cura combinada de convec\u00e7\u00e3o de ar quente e radia\u00e7\u00e3o<\/p>\n<p>Geralmente, primeiro a radia\u00e7\u00e3o e depois a convec\u00e7\u00e3o, usando as vantagens do aquecimento r\u00e1pido por radia\u00e7\u00e3o, de modo que a pe\u00e7a de trabalho seja aquecida e, em seguida, use o isolamento por convec\u00e7\u00e3o de ar quente para garantir a qualidade da secagem.<\/p>\n<p>2\u3001Cura por convec\u00e7\u00e3o de ar quente<\/p>\n<p>Aquecimento por convec\u00e7\u00e3o de ar quente uniforme, controle de alta temperatura, adequado para revestimento de alta qualidade, n\u00e3o afetado pela forma da pe\u00e7a de trabalho e pela complexidade da estrutura, mas a taxa de aquecimento lenta, a baixa efici\u00eancia t\u00e9rmica, o equipamento \u00e9 enorme, o revestimento \u00e9 f\u00e1cil de formar bolhas, rugas, altos requisitos de poeira. As fontes de calor usadas s\u00e3o vapor, eletricidade, diesel, g\u00e1s, g\u00e1s liquefeito e g\u00e1s natural, etc.<\/p>\n<p>3\u3001Cura por fus\u00e3o<\/p>\n<p>O revestimento de cura por fus\u00e3o geralmente se refere aos produtos de revestimento do tipo p\u00f3 s\u00f3lido.<\/p>\n<p>&nbsp;<\/p>\n<p>3\u3001Cura por radia\u00e7\u00e3o<\/p>\n<p>1\u3001Cura por radia\u00e7\u00e3o de luz ultravioleta (UV)<\/p>\n<p>\u00c9 um tipo de f\u00f3rmula qu\u00edmica (tinta, tinta e adesivo) que, com a ajuda da irradia\u00e7\u00e3o de energia, realiza o processo de convers\u00e3o do estado l\u00edquido para o s\u00f3lido.<\/p>\n<p>2\u3001Cura por infravermelho pr\u00f3ximo (infravermelho de ondas curtas)<\/p>\n<p>A tecnologia de infravermelho pr\u00f3ximo permite que os revestimentos em p\u00f3 funcionem e curem rapidamente em segundos.<\/p>\n<p>3\u3001Cura por radia\u00e7\u00e3o infravermelha (onda longa, onda m\u00e9dia)<\/p>\n<p>Normalmente, usa radia\u00e7\u00e3o infravermelha e infravermelha distante para o objeto ap\u00f3s a absor\u00e7\u00e3o direta em energia t\u00e9rmica, para que o revestimento seja curado.<\/p>\n<p>4\u3001Cura por rea\u00e7\u00e3o t\u00e9rmica catal\u00edtica por infravermelho<\/p>\n<p>\u00c9 o uso do pr\u00f3prio revestimento para absorver a energia infravermelha e transform\u00e1-la em energia t\u00e9rmica para fazer a cura do filme de revestimento.<\/p>\n<p>5\u3001Cura por micro-ondas<\/p>\n<p>Microondas refere-se \u00e0 onda eletromagn\u00e9tica com a frequ\u00eancia de 0,3 a 300 GHz. O material produzir\u00e1 fen\u00f4menos f\u00edsicos, como aquecimento e derretimento, sob a a\u00e7\u00e3o das micro-ondas, e tamb\u00e9m ocorrer\u00e1 rea\u00e7\u00e3o qu\u00edmica.<\/p>\n<h2><strong>Revestimentos Mat\u00e9rias-primas: <a href=\"https:\/\/longchangchemical.com\/pt\/product\/uv-photoinitiator\/\"><span style=\"color: #00ccff;\">Fotoiniciador UV<\/span><\/a> Produtos da mesma s\u00e9rie<\/strong><\/h2>\n<p>&nbsp;<\/p>\n<table style=\"border-collapse: collapse; width: 435.77pt;\" border=\"0\" width=\"581\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt; width: 215.25pt;\" width=\"287\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-tpo-cas-75980-60-8\/\"><span style=\"color: #00ccff;\">Fotoiniciador TPO<\/span><\/a><\/td>\n<td style=\"width: 220.50pt;\" width=\"294\">CAS 75980-60-8<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/cas-270586-78-2\/\"><span style=\"color: #00ccff;\">Fotoiniciador TMO<\/span><\/a><\/td>\n<td>CAS 270586-78-2<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-pd-01-cas-579-07-7\/\"><span style=\"color: #00ccff;\">Fotoiniciador PD-01<\/span><\/a><\/td>\n<td>CAS 579-07-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-pbz-cas-2128-93-0\/\"><span style=\"color: #00ccff;\">Fotoiniciador PBZ<\/span><\/a><\/td>\n<td>CAS 2128-93-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-oxe-02-cas-478556-66-0\/\"><span style=\"color: #00ccff;\">Fotoiniciador OXE-02<\/span><\/a><\/td>\n<td>CAS 478556-66-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-ombb\/\"><span style=\"color: #00ccff;\">Fotoiniciador OMBB<\/span><\/a><\/td>\n<td>CAS 606-28-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-mpbz-6012\/\"><span style=\"color: #00ccff;\">Fotoiniciador MPBZ (6012)<\/span><\/a><\/td>\n<td>CAS 86428-83-3<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-mbp-cas-134-84-9\/\"><span style=\"color: #00ccff;\">Fotoiniciador MBP<\/span><\/a><\/td>\n<td>CAS 134-84-9<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-mbf-cas-15206-55-0\/\"><span style=\"color: #00ccff;\">Fotoiniciador MBF<\/span><\/a><\/td>\n<td>CAS 15206-55-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-lap-cas-85073-19-4\/\"><span style=\"color: #00ccff;\">Fotoiniciador LAP<\/span><\/a><\/td>\n<td>CAS 85073-19-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-itx-cas-5495-84-1\/\"><span style=\"color: #00ccff;\">Fotoiniciador ITX<\/span><\/a><\/td>\n<td>CAS 5495-84-1<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-emk\/\"><span style=\"color: #00ccff;\">Fotoiniciador EMK<\/span><\/a><\/td>\n<td>CAS 90-93-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-eha-cas-21245-02-3\/\"><span style=\"color: #00ccff;\">Fotoiniciador EHA<\/span><\/a><\/td>\n<td>CAS 21245-02-3<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-edb-cas-10287-53-3\/\"><span style=\"color: #00ccff;\">Fotoiniciador EDB<\/span><\/a><\/td>\n<td>CAS 10287-53-3<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-detx-cas-82799-44-8\/\"><span style=\"color: #00ccff;\">Fotoiniciador DETX<\/span><\/a><\/td>\n<td>CAS 82799-44-8<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-cq\/\"><span style=\"color: #00ccff;\">Fotoiniciador CQ \/ canforoquinona<\/span><\/a><\/td>\n<td>CAS 10373-78-1<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-cbp-cas-134-85-0\/\"><span style=\"color: #00ccff;\">Fotoiniciador CBP<\/span><\/a><\/td>\n<td>CAS 134-85-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-bp-cas-119-61-9\/\"><span style=\"color: #00ccff;\">Fotoiniciador BP \/ Benzofenona<\/span><\/a><\/td>\n<td>CAS 119-61-9<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-bms\/\"><span style=\"color: #00ccff;\">Fotoiniciador BMS<\/span><\/a><\/td>\n<td>CAS 83846-85-9<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-938\/\"><span style=\"color: #00ccff;\">Fotoiniciador 938<\/span><\/a><\/td>\n<td>CAS 61358-25-6<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-937-cas-71786-70-4\/\"><span style=\"color: #00ccff;\">Fotoiniciador 937<\/span><\/a><\/td>\n<td>CAS 71786-70-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-819-dw\/\"><span style=\"color: #00ccff;\">Fotoiniciador 819 DW<\/span><\/a><\/td>\n<td>CAS 162881-26-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-819-irgacure-819-cas-162881-26-7\/\"><span style=\"color: #00ccff;\">Fotoiniciador 819<\/span><\/a><\/td>\n<td>CAS 162881-26-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-784-cas-125051-32-3\/\"><span style=\"color: #00ccff;\">Fotoiniciador 784<\/span><\/a><\/td>\n<td>CAS 125051-32-3<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-754-cas-211510-16-6-442536-99-4\/\"><span style=\"color: #00ccff;\">Fotoiniciador 754<\/span><\/a><\/td>\n<td>CAS 211510-16-6 442536-99-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-6993-cas-71449-78-0\/\"><span style=\"color: #00ccff;\">Fotoiniciador 6993<\/span><\/a><\/td>\n<td>CAS 71449-78-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-6976\/\"><span style=\"color: #00ccff;\">Fotoiniciador 6976<\/span><\/a><\/td>\n<td>CAS 71449-78-0 89452-37-9 108-32-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-379-cas-119344-86-4\/\"><span style=\"color: #00ccff;\">Fotoiniciador 379<\/span><\/a><\/td>\n<td>CAS 119344-86-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-369-cas-119313-12-1\/\"><span style=\"color: #00ccff;\">Fotoiniciador 369<\/span><\/a><\/td>\n<td>CAS 119313-12-1<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-160\/\">Fotoiniciador 160<\/a><\/span><\/td>\n<td>CAS 71868-15-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-1206\/\"><span style=\"color: #00ccff;\">Fotoiniciador 1206<\/span><\/a><\/td>\n<td><\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/irgacure-1173-cas-7473-98-5\/\"><span style=\"color: #00ccff;\">Fotoiniciador 1173<\/span><\/a><\/td>\n<td>CAS 7473-98-5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><!-- lc-commercial-start --><\/p>\n<h2>Como os formuladores geralmente avaliam este t\u00f3pico de fotoiniciador<\/h2>\n<p>Ao avaliar fotoiniciadores, os compradores t\u00e9cnicos ou formuladores geralmente consideram a qualidade da cura e a adequa\u00e7\u00e3o \u00e0 aplica\u00e7\u00e3o: qual embalagem cura de forma confi\u00e1vel, mant\u00e9m uma apar\u00eancia aceit\u00e1vel e ainda funciona sob as condi\u00e7\u00f5es da l\u00e2mpada, espessura do filme e substrato do processo real.<\/p>\n<ul>\n<li><strong>Primeiro, compare a embalagem com a l\u00e2mpada:<\/strong> L\u00e2mpadas de merc\u00fario, LEDs UV e sistemas de luz vis\u00edvel podem classificar os mesmos fotoiniciadores de maneiras muito diferentes.<\/li>\n<li><strong>Verifique a cura em profundidade e a cura superficial separadamente:<\/strong> Uma pel\u00edcula que parece seca na superf\u00edcie ainda pode estar fr\u00e1gil por baixo.<\/li>\n<li><strong>Equilibre o amarelamento com a reatividade:<\/strong> O m\u00e9todo de cura profunda mais eficaz nem sempre \u00e9 a melhor op\u00e7\u00e3o comercial se o risco de migra\u00e7\u00e3o ou altera\u00e7\u00e3o da cor se tornar inaceit\u00e1vel.<\/li>\n<li><strong>Utilize a f\u00f3rmula final como refer\u00eancia:<\/strong> A quantidade de pigmento, o pacote de mon\u00f4meros e a espessura do filme podem alterar a classifica\u00e7\u00e3o aparente do mesmo iniciador.<\/li>\n<\/ul>\n<h3>Refer\u00eancias de produtos recomendadas<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-819-irgacure-819-cas-162881-26-7\/\">CHLUMINIT 819<\/a>:<\/strong> \u00datil quando uma f\u00f3rmula necessita de maior absor\u00e7\u00e3o e suporte \u00e0 cura mais profunda.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/irgacure-1173-cas-7473-98-5\/\">CHLUMINIT 1173<\/a>:<\/strong> Um ponto de compara\u00e7\u00e3o pr\u00e1tico para a inicia\u00e7\u00e3o cl\u00e1ssica por UV de ondas curtas.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-itx-cas-5495-84-1\/\">CHLUMINIT ITX<\/a>:<\/strong> Uma via de suporte de ondas longas \u00fatil em muitos pacotes de tinta de impress\u00e3o.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-cq\/\">CHLUMINIT CQ<\/a>:<\/strong> Uma refer\u00eancia direta para discuss\u00f5es sobre cura sens\u00edvel \u00e0 luz vis\u00edvel e \u00e0 cor.<\/li>\n<\/ul>\n<h3>FAQ para compradores e formuladores<\/h3>\n<p><strong>Por que os pacotes de fotoiniciadores misturados s\u00e3o t\u00e3o comuns?<\/strong><br \/>Como um produto pode controlar o amarelamento ou o encaixe da l\u00e2mpada, enquanto outro melhora a profundidade de cura ou o desempenho da velocidade da linha, o pacote completo costuma ser mais eficaz do que qualquer produto individual.<\/p>\n<p><strong>A cura incompleta deve sempre ser resolvida adicionando mais iniciador?<\/strong><br \/>N\u00e3o automaticamente. A verdadeira limita\u00e7\u00e3o pode estar na l\u00e2mpada, na espessura do filme, na tonalidade do pigmento ou no restante do sistema reativo, e n\u00e3o simplesmente em uma subdosagem.<\/p>\n<p><!-- lc-commercial-end --><\/p>\n<h2><strong><b>Entre em contato conosco agora!<\/b><\/strong><\/h2>\n<h4><strong><b>Se precisar de COA, MSDS ou TDS do fotoiniciador UV, preencha suas informa\u00e7\u00f5es de contato no formul\u00e1rio abaixo. Em geral, entraremos em contato em 24 horas.<\/b><\/strong> Voc\u00ea tamb\u00e9m pode me enviar um e-mail <a href=\"mailto:info@longchangchemical.com\"><span style=\"color: #0000ff;\">info@longchangchemical.com<\/span><\/a> durante o hor\u00e1rio comercial (das 8h30 \u00e0s 18h UTC+8 de segunda a s\u00e1bado) ou use o bate-papo ao vivo do site para obter uma resposta imediata.<\/h4>","protected":false},"excerpt":{"rendered":"<p>Coating curing is the process of coating being applied to the coated object and forming a dry coating film (including hard and soft film) by various means. The factors affecting<\/p>","protected":false},"author":1,"featured_media":5874,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114],"tags":[],"class_list":["post-5858","post","type-post","status-publish","format-standard","has-post-thumbnail","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 are the factors and methods affecting the curing of coatings? - Longchang Chemical<\/title>\n<meta name=\"description\" content=\"Coating curing is the process of coating being applied to the coated object and forming a dry coating film (including hard and soft film) by various mea...\" \/>\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-are-the-factors-and-methods-affecting-the-curing-of-coatings\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What are the factors and methods affecting the curing of coatings? 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