{"id":7662,"date":"2024-11-29T12:52:18","date_gmt":"2024-11-29T12:52:18","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=7662"},"modified":"2026-04-28T10:42:43","modified_gmt":"2026-04-28T10:42:43","slug":"how-to-substitute-tpo-photoinitiator","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/pt\/how-to-substitute-tpo-photoinitiator\/","title":{"rendered":"Como substituir o fotoiniciador de tpo"},"content":{"rendered":"<h1><strong>Como substituir o fotoiniciador de tpo?<\/strong><\/h1>\n<p><!-- lc-qa-start --><\/p>\n<p><strong>Quick answer:<\/strong> Photoinitiator choice is usually driven by lamp match, cure depth, yellowing, and whether the final film still performs on the real substrate. The best package is rarely the cheapest single grade.<\/p>\n<p><!-- lc-qa-end --><\/p>\n<p>A ECHA anunciou oficialmente que o \u00f3xido de difenil (2,4,6-trimetilbenzoil)fosfina, tamb\u00e9m conhecido como fotoiniciador TPO, foi inclu\u00eddo no 29\u00ba lote da Lista de Subst\u00e2ncias Candidatas de Preocupa\u00e7\u00e3o Muito Alta (SVHC). Com isso, o n\u00famero total de subst\u00e2ncias na Lista de Candidatos a SVHC chega a 235. Isso significa que as empresas t\u00eam uma responsabilidade significativa em rela\u00e7\u00e3o aos produtos qu\u00edmicos da lista. Elas s\u00e3o obrigadas a fazer o m\u00e1ximo para gerenciar os riscos e fornecer aos clientes e consumidores informa\u00e7\u00f5es detalhadas sobre o uso seguro desses produtos qu\u00edmicos. Isso se deve ao fato de que essas subst\u00e2ncias provavelmente ser\u00e3o inclu\u00eddas na lista de autoriza\u00e7\u00e3o em algum momento no futuro. Quando uma subst\u00e2ncia for inclu\u00edda, ela ser\u00e1 banida, a menos que a empresa em quest\u00e3o solicite autoriza\u00e7\u00e3o \u00e0 Comiss\u00e3o Europeia para continuar a us\u00e1-la.<br \/>\nPrimeiro, vamos dar uma olhada nas informa\u00e7\u00f5es b\u00e1sicas sobre o fotoiniciador TPO. Seu nome qu\u00edmico \u00e9 \u00f3xido de difenil (2,4,6-trimetilbenzoil)fosfina, tamb\u00e9m conhecido como fotoiniciador TPO, com n\u00famero CE 278-355-8 e n\u00famero CAS 7598 0 - 60 - 8, est\u00e1 listado por raz\u00f5es de toxicidade reprodutiva (Artigo 57 (c)) e \u00e9 comumente usado em uma ampla gama de \u00e1reas, como tintas e toners, produtos de revestimento, fotopol\u00edmero, adesivos e selantes, bem como cargas, argila de modelagem de gesso e muito mais.<\/p>\n<p>Analisando o desenvolvimento da fotopolimeriza\u00e7\u00e3o, trata-se de uma tecnologia muito distinta. A fotopolimeriza\u00e7\u00e3o refere-se principalmente ao processo de polimeriza\u00e7\u00e3o de mon\u00f4meros, olig\u00f4meros ou substratos de pol\u00edmeros sob a a\u00e7\u00e3o da luz, que desempenha um papel fundamental no processo de forma\u00e7\u00e3o de filmes. Sua alta efici\u00eancia, adaptabilidade, economia, conserva\u00e7\u00e3o de energia e respeito ao meio ambiente a tornaram uma tecnologia fundamental na ind\u00fastria moderna. A cura por luz pode ser dividida em dois tipos: a cura por l\u00e2mpada de merc\u00fario tradicional e a cura por LED UV emergente. As l\u00e2mpadas de merc\u00fario tradicionais, se n\u00e3o forem descartadas adequadamente ap\u00f3s o uso, podem causar s\u00e9ria polui\u00e7\u00e3o ambiental, o que \u00e9 um dos principais motivos para sua elimina\u00e7\u00e3o gradual. A cura por LED UV est\u00e1 surgindo gradualmente no campo dos equipamentos de cura devido \u00e0s suas muitas vantagens, como maior efici\u00eancia energ\u00e9tica, facilidade para ligar e desligar e tamanho compacto. Ela est\u00e1 pronta para substituir a cura tradicional com l\u00e2mpadas de merc\u00fario e se tornar a principal fonte de luz.<\/p>\n<p>Em um sistema de formula\u00e7\u00e3o de cura por luz, o fotoiniciador \u00e9 respons\u00e1vel por apenas cerca de 2% - 5% do total, o que pode parecer insignificante, mas na verdade ele desempenha um papel indispens\u00e1vel. Devido aos requisitos especiais da rea\u00e7\u00e3o de fotopolimeriza\u00e7\u00e3o, os fotoiniciadores precisam absorver a luz ultravioleta para gerar radicais livres, que, por sua vez, iniciam a rea\u00e7\u00e3o de polimeriza\u00e7\u00e3o e, por fim, causam a cura do produto. Os fotoiniciadores tradicionais, como o 1173 e o 184, t\u00eam um comprimento de onda de absor\u00e7\u00e3o m\u00e1xima na regi\u00e3o UVC de comprimento de onda curto, portanto, s\u00e3o mais adequados para a cura com l\u00e2mpadas de merc\u00fario tradicionais. Os LEDs UV, por outro lado, concentram-se principalmente em comprimentos de onda espec\u00edficos, como 365nm, 385nm, 395nm e 405nm. Entre esses comprimentos de onda, os fotoiniciadores de \u00f3xido de fosfina apresentam capacidades de absor\u00e7\u00e3o relativamente fortes. O fotoiniciador TPO \u00e9 um representante t\u00edpico e \u00e9 amplamente usado no campo de LEDs UV. O TPO n\u00e3o s\u00f3 tem as excelentes caracter\u00edsticas de alta efici\u00eancia de indu\u00e7\u00e3o e baixo amarelamento, mas tamb\u00e9m \u00e9 relativamente acess\u00edvel. No entanto, nos \u00faltimos anos, com o forte impulso de crescimento da tecnologia de cura de LED UV, o fornecimento global de TPO tem sido extremamente restrito, e tornou-se extremamente dif\u00edcil obter um \u00fanico produto. Felizmente, nos \u00faltimos anos, devido \u00e0 expans\u00e3o cont\u00ednua da escala de produ\u00e7\u00e3o dos principais fabricantes nacionais de fotoiniciadores, juntamente com a entrada gradual de novos fabricantes, a oferta restrita de TPO foi bastante atenuada e o pre\u00e7o voltou gradualmente aos n\u00edveis normais. O fornecimento est\u00e1vel de TPO tamb\u00e9m promoveu fortemente o desenvolvimento da tecnologia de LED UV.<\/p>\n<p>Vamos dar uma olhada mais de perto na classifica\u00e7\u00e3o de toxicidade e no uso restrito do TPO. Os fotoiniciadores s\u00e3o, em sua maioria, pequenas mol\u00e9culas org\u00e2nicas. Quando as condi\u00e7\u00f5es de luz n\u00e3o s\u00e3o suficientes, essas mol\u00e9culas fotoiniciadoras podem permanecer dentro do produto curado, formando assim subst\u00e2ncias de migra\u00e7\u00e3o em potencial. Al\u00e9m disso, na maioria dos casos, o processo de produ\u00e7\u00e3o de radicais livres pelos fotoiniciadores \u00e9 obtido por meio da quebra de liga\u00e7\u00f5es qu\u00edmicas. Depois que esses radicais livres s\u00e3o extintos, eles podem formar compostos com peso molecular menor. Esses produtos de mol\u00e9culas pequenas n\u00e3o s\u00f3 representam um problema de migra\u00e7\u00e3o, mas tamb\u00e9m podem produzir subst\u00e2ncias t\u00f3xicas que, sem d\u00favida, representam uma poss\u00edvel amea\u00e7a \u00e0 sa\u00fade humana e \u00e0 seguran\u00e7a ambiental. Com o aumento do uso do fotoiniciador TPO, os esfor\u00e7os regulat\u00f3rios contra ele tamb\u00e9m continuaram a se intensificar. De acordo com os regulamentos CLP (Classifica\u00e7\u00e3o, Rotulagem e Embalagem) da UE, o TPO foi inicialmente classificado como um t\u00f3xico reprodutivo de Categoria 2 (H361), tamb\u00e9m conhecido como \"suspeito de ser t\u00f3xico para a reprodu\u00e7\u00e3o humana\". Em junho de 2020, a Su\u00e9cia, pa\u00eds n\u00f3rdico, prop\u00f4s uma mudan\u00e7a na classifica\u00e7\u00e3o para 1B (H360DF) com base em evid\u00eancias obtidas em extensos experimentos com animais, e tamb\u00e9m adicionou a classifica\u00e7\u00e3o de irritante para a pele (H317) (1B indica \"presum\u00edvel t\u00f3xico para a reprodu\u00e7\u00e3o humana\"). No outono de 2021, o Comit\u00ea de Avalia\u00e7\u00e3o de Riscos (RAC) da UE concordou em atualizar a classifica\u00e7\u00e3o do TPO. Depois de aprovada pela Comiss\u00e3o Europeia, a classifica\u00e7\u00e3o ser\u00e1 adicionada ao Anexo VI do Regulamento CLP da UE por meio de um ATP e se tornar\u00e1 juridicamente vinculativa. Em janeiro de 2023, a Su\u00e9cia emitiu outro aviso de inten\u00e7\u00e3o para propor que o TPO fosse inclu\u00eddo na lista SVHC (Substances of Very High Concern), e os coment\u00e1rios sobre a proposta deveriam ser enviados at\u00e9 3 de abril de 2023. At\u00e9 o momento, a TPO foi oficialmente inclu\u00edda no 29\u00ba lote da Lista de Subst\u00e2ncias Candidatas a Subst\u00e2ncias de Preocupa\u00e7\u00e3o Muito Elevada (SVHC).<\/p>\n<p>Em termos de explora\u00e7\u00e3o de alternativas ao fotoiniciador TPO, al\u00e9m do TPO, h\u00e1 dois fotoiniciadores comumente usados na categoria de fotoiniciadores de \u00f3xido de fosfina com forte absor\u00e7\u00e3o de luz ultravioleta: Fotoiniciador TPO - L e Fotoiniciador 819 (BAPO). A estrutura molecular do TPO - L \u00e9 semelhante \u00e0 do TPO, mas sua toxicidade \u00e9 relativamente baixa porque um dos an\u00e9is de benzeno na mol\u00e9cula \u00e9 substitu\u00eddo por um grupo etoxi. No entanto, ele tamb\u00e9m tem uma desvantagem significativa: a efici\u00eancia de inicia\u00e7\u00e3o do TPO-L \u00e9 muito menor do que a do TPO. O outro fotoiniciador de \u00f3xido de fosfina 819 (BABO) pode ser entendido como o produto da substitui\u00e7\u00e3o do anel de benzeno no TPO por um 2,4,6-trimetilbenzoil substitu\u00eddo por dois grupos 2,4,6-trimetilbenzoil. O 819 tem uma efici\u00eancia inicial maior do que o TPO, mas tem um s\u00e9rio problema de amarelamento, o que significa que n\u00e3o pode ser usado em aplica\u00e7\u00f5es em que a cor \u00e9 fundamental. Em resumo, o TPO-L e o 819 s\u00f3 podem substituir o TPO em algumas aplica\u00e7\u00f5es espec\u00edficas, mas n\u00e3o podem substitu\u00ed-lo completamente.<\/p>\n<p>Felizmente, surgiu uma nova alternativa ao TPO: O fotoiniciador TMO. O nome completo do fotoiniciador TMO \u00e9 (2,4,6-trimetilbenzoil) bis(4-metilfenil)\u00f3xido de fosfina, e seu n\u00famero CAS \u00e9 270586-78-2. A julgar pela estrutura molecular, o fotoiniciador TMO introduziu um grupo metil em cada um dos dois an\u00e9is de benzeno do TPO. Foi essa pequena mudan\u00e7a estrutural que reduziu muito a biotoxicidade do TPO. Uma extensa verifica\u00e7\u00e3o experimental constatou que a efici\u00eancia inicial do fotoiniciador TMO \u00e9 at\u00e9 um pouco maior do que a do TPO, e ele tem as excelentes caracter\u00edsticas de n\u00e3o amarelar e ter baixa migra\u00e7\u00e3o. Atualmente, o fotoiniciador TMO foi produzido em massa com sucesso e obteve o certificado de registro REACH da UE, o que significa que pode ser vendido com sucesso no mercado europeu, onde o controle qu\u00edmico \u00e9 o mais rigoroso. O surgimento desse novo fotoiniciador, sem d\u00favida, fornece novas ideias e orienta\u00e7\u00f5es para o setor de fotopol\u00edmeros lidar com o dilema da sele\u00e7\u00e3o de materiais depois que o TPO foi inclu\u00eddo na lista de candidatos a SVHC. No futuro, com o avan\u00e7o cont\u00ednuo da tecnologia e da pesquisa aprofundada, pode haver mais inova\u00e7\u00f5es e avan\u00e7os no campo dos fotoiniciadores. Vamos esperar para ver.<\/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\/cas-270586-78-2\/\">CHLUMINIT TMO<\/a>:<\/strong> A valuable comparison point when lower yellowing or TPO-replacement discussions matter.<\/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<\/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>\n<h2><strong><b>Entre em contato conosco agora!<\/b><\/strong><\/h2>\n<h4><strong><b>Se precisar do pre\u00e7o do fotoiniciador, preencha suas informa\u00e7\u00f5es de contato no formul\u00e1rio abaixo. Normalmente, entraremos em contato dentro de 24 horas. Voc\u00ea tamb\u00e9m pode me enviar um e-mail <a href=\"mailto:info@longchangchemical.com\"><span style=\"color: #00ccff;\">info@longchangchemical.com<\/span><\/a>\u00a0durante 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.<\/b><\/strong><\/h4>\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>","protected":false},"excerpt":{"rendered":"<p>? The ECHA has officially announced that diphenyl (2,4,6-trimethylbenzoyl)phosphine oxide, also known as photoinitiator TPO, has been included in the 29th batch of the Candidate List of Substances of Very<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[185],"tags":[],"class_list":["post-7662","post","type-post","status-publish","format-standard","hentry","category-photoinitiator"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to substitute tpo photoinitiator - Longchang Chemical<\/title>\n<meta name=\"description\" content=\"? 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