{"id":5459,"date":"2022-08-17T13:43:20","date_gmt":"2022-08-17T13:43:20","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=5459"},"modified":"2026-04-28T10:42:07","modified_gmt":"2026-04-28T10:42:07","slug":"characteristics-types-and-applications-of-uv-absorbers","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/pt\/characteristics-types-and-applications-of-uv-absorbers\/","title":{"rendered":"Caracter\u00edsticas, tipos e aplica\u00e7\u00f5es dos absorvedores de UV"},"content":{"rendered":"<h1><strong>Caracter\u00edsticas, tipos e aplica\u00e7\u00f5es dos absorvedores de UV<\/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 absorvedor de UV \u00e9 uma classe de subst\u00e2ncias que pode absorver a luz solar ou a fonte de luz fluorescente na parte do comprimento de onda ultravioleta, e suas pr\u00f3prias propriedades f\u00edsicas e estrutura n\u00e3o mudam. Os absorvedores de UV podem ser divididos nas seguintes categorias, de acordo com sua estrutura qu\u00edmica: salicilatos, benzofenonas, benzotriaz\u00f3is, acrilonitrila substitu\u00edda, triazinas etc. Os mais comuns no mercado s\u00e3o as benzofenonas, os benzotriaz\u00f3is e as triazinas. Todos eles funcionam com base no princ\u00edpio de converter a energia da luz UV de alta energia em calor ou em ondas de luz mais longas n\u00e3o destrutivas liberadas, protegendo, assim, os materiais org\u00e2nicos com absorvedores de UV contra danos causados por UV.<\/p>\n<p>Os absorvedores de UV como aditivos para materiais polim\u00e9ricos geralmente exigem que sua cor inicial seja clara, sem manchas; e os materiais polim\u00e9ricos t\u00eam boa compatibilidade; com requisitos de processamento de resist\u00eancia ao calor, estabilidade qu\u00edmica, etc. Se usados em materiais de embalagem de alimentos, os absorvedores de UV tamb\u00e9m precisam atender aos requisitos ambientais de embalagem de alimentos e resist\u00eancia \u00e0 migra\u00e7\u00e3o.<\/p>\n<p>Explicamos acima que o papel dos absorvedores de UV \u00e9 absorver seletivamente a alta energia da fonte de luz ultravioleta, por meio da convers\u00e3o de energia, de modo que a alta energia da luz ultravioleta se transforme em libera\u00e7\u00e3o ou consumo de energia t\u00e9rmica inofensiva. O tipo de pol\u00edmero \u00e9 diferente, de modo que seu dano de envelhecimento ao comprimento de onda UV (banda sens\u00edvel) n\u00e3o \u00e9 o mesmo. Conforme a tabela a seguir.<\/p>\n<table style=\"border-collapse: collapse; width: 261.02pt;\" border=\"0\" width=\"348\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr style=\"height: 26.25pt;\">\n<td class=\"et2\" style=\"height: 26.25pt; width: 131.25pt;\" width=\"175\" height=\"35\">Categoria de material<\/td>\n<td class=\"et3\" style=\"width: 129.75pt;\" width=\"173\">Banda de onda sens\u00edvel (nm)<\/td>\n<\/tr>\n<tr style=\"height: 14.25pt;\">\n<td class=\"et4\" style=\"height: 14.25pt; width: 131.25pt;\" width=\"175\" height=\"19\">Polietileno<\/td>\n<td class=\"et4\" style=\"width: 129.75pt;\" width=\"173\">300<\/td>\n<\/tr>\n<tr style=\"height: 14.25pt;\">\n<td class=\"et4\" style=\"height: 14.25pt; width: 131.25pt;\" width=\"175\" height=\"19\">Cloreto de polivinila<\/td>\n<td class=\"et4\" style=\"width: 129.75pt;\" width=\"173\">310<\/td>\n<\/tr>\n<tr style=\"height: 14.25pt;\">\n<td class=\"et4\" style=\"height: 14.25pt; width: 131.25pt;\" width=\"175\" height=\"19\">Poliestireno<\/td>\n<td class=\"et4\" style=\"width: 129.75pt;\" width=\"173\">318<\/td>\n<\/tr>\n<tr style=\"height: 14.25pt;\">\n<td class=\"et4\" style=\"height: 14.25pt; width: 131.25pt;\" width=\"175\" height=\"19\">Poli\u00e9ster<\/td>\n<td class=\"et4\" style=\"width: 129.75pt;\" width=\"173\">325<\/td>\n<\/tr>\n<tr style=\"height: 14.25pt;\">\n<td class=\"et4\" style=\"height: 14.25pt; width: 131.25pt;\" width=\"175\" height=\"19\">Polipropileno<\/td>\n<td class=\"et4\" style=\"width: 129.75pt;\" width=\"173\">310<\/td>\n<\/tr>\n<tr style=\"height: 27.75pt;\">\n<td class=\"et4\" style=\"height: 27.75pt; width: 131.25pt;\" width=\"175\" height=\"37\">Copol\u00edmero de cloreto de vinila e acetato de etila<\/td>\n<td class=\"et4\" style=\"width: 129.75pt;\" width=\"173\">322-364<\/td>\n<\/tr>\n<tr style=\"height: 14.25pt;\">\n<td class=\"et4\" style=\"height: 14.25pt; width: 131.25pt;\" width=\"175\" height=\"19\">Policarbonato<\/td>\n<td class=\"et4\" style=\"width: 129.75pt;\" width=\"173\">300-320<\/td>\n<\/tr>\n<tr style=\"height: 14.25pt;\">\n<td class=\"et4\" style=\"height: 14.25pt; width: 131.25pt;\" width=\"175\" height=\"19\">Policarbonato (PC)<\/td>\n<td class=\"et4\" style=\"width: 129.75pt;\" width=\"173\">295<\/td>\n<\/tr>\n<tr style=\"height: 14.25pt;\">\n<td class=\"et4\" style=\"height: 14.25pt; width: 131.25pt;\" width=\"175\" height=\"19\">Nitrocelulose<\/td>\n<td class=\"et4\" style=\"width: 129.75pt;\" width=\"173\">310<\/td>\n<\/tr>\n<tr style=\"height: 14.25pt;\">\n<td class=\"et4\" style=\"height: 14.25pt; width: 131.25pt;\" width=\"175\" height=\"19\">Polimetilmetacrilato<\/td>\n<td class=\"et4\" style=\"width: 129.75pt;\" width=\"173\">290-315<\/td>\n<\/tr>\n<tr style=\"height: 14.25pt;\">\n<td class=\"et4\" style=\"height: 14.25pt; width: 131.25pt;\" width=\"175\" height=\"19\">Resinas termopl\u00e1sticas<\/td>\n<td class=\"et4\" style=\"width: 129.75pt;\" width=\"173\">290-320<\/td>\n<\/tr>\n<tr style=\"height: 14.25pt;\">\n<td class=\"et4\" style=\"height: 14.25pt; width: 131.25pt;\" width=\"175\" height=\"19\">Poli\u00e9ster insaturado<\/td>\n<td class=\"et4\" style=\"width: 129.75pt;\" width=\"173\">325<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>Como mostra a tabela, diferentes tipos de materiais polim\u00e9ricos s\u00e3o sens\u00edveis a diferentes comprimentos de onda de luz ultravioleta, e diferentes absorvedores de UV podem absorver diferentes faixas de ondas de luz de prote\u00e7\u00e3o. Portanto, diferentes resinas escolhem o absorvedor de UV apropriado para obter um bom efeito de estabiliza\u00e7\u00e3o da luz.<\/p>\n<p>Em resumo, como absorvedor de UV, n\u00e3o \u00e9 necess\u00e1rio ter as seguintes condi\u00e7\u00f5es.<\/p>\n<p>1, pode absorver fortemente os raios UV;<\/p>\n<p>2, boa estabilidade qu\u00edmica, sem rea\u00e7\u00e3o qu\u00edmica com outros componentes do material; boa estabilidade fotoqu\u00edmica em si, sem decomposi\u00e7\u00e3o e descolora\u00e7\u00e3o.<\/p>\n<p>3, boa estabilidade t\u00e9rmica, pequena volatilidade e n\u00e3o se altera devido ao calor no processamento; \u2463<\/p>\n<p>4\u3001Boa compatibilidade com materiais polim\u00e9ricos, pode ser uniformemente disperso no material, sem forma\u00e7\u00e3o de gelo, sem precipita\u00e7\u00e3o;<\/p>\n<p>5, outras propriedades, como incolor, at\u00f3xico, inodoro, resistente \u00e0 lavagem, barato e f\u00e1cil de obter.<\/p>\n<p>&nbsp;<\/p>\n<h2><strong>Produtos da mesma s\u00e9rie<\/strong><\/h2>\n<p>&nbsp;<\/p>\n<table style=\"border-collapse: collapse; width: 498.02pt;\" border=\"0\" width=\"664\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr style=\"height: 16.00pt;\">\n<td class=\"et3\" style=\"height: 16.00pt; width: 126.00pt;\" width=\"168\" height=\"21\">Nome do produto<\/td>\n<td class=\"et3\" style=\"width: 73.00pt;\" width=\"97\">CAS NO.<\/td>\n<td class=\"et3\" style=\"width: 299.00pt;\" width=\"398\">Nome qu\u00edmico<\/td>\n<\/tr>\n<tr style=\"height: 16.00pt;\">\n<td class=\"et4\" style=\"height: 16.00pt; width: 126.00pt;\" width=\"168\" height=\"21\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/lcnacure-tpo-cas-75980-60-8\/\"><span style=\"color: #00ccff;\">lcnacure\u00ae TPO<\/span><\/a><\/td>\n<td class=\"et3\" style=\"width: 73.00pt;\" width=\"97\">75980-60-8<\/td>\n<td class=\"et3\" style=\"width: 299.00pt;\" width=\"398\">\u00d3xido de difenil(2,4,6-trimetilbenzoil)fosfina<\/td>\n<\/tr>\n<tr style=\"height: 16.00pt;\">\n<td class=\"et4\" style=\"height: 16.00pt; width: 126.00pt;\" width=\"168\" height=\"21\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/lcnacure-tpo-l-cas-84434-11-7\/\"><span style=\"color: #00ccff;\">lcnacure\u00ae TPO-L<\/span><\/a><\/td>\n<td class=\"et3\" style=\"width: 73.00pt;\" width=\"97\">84434-11-7<\/td>\n<td class=\"et3\" style=\"width: 299.00pt;\" width=\"398\">Fenilfosfinato de etila (2,4,6-trimetilbenzoil)<\/td>\n<\/tr>\n<tr style=\"height: 16.00pt;\">\n<td class=\"et4\" style=\"height: 16.00pt; width: 126.00pt;\" width=\"168\" height=\"21\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-819-irgacure-819-cas-162881-26-7\/\"><span style=\"color: #00ccff;\">lcnacure\u00ae 819<\/span><\/a>\/920<\/td>\n<td class=\"et3\" style=\"width: 73.00pt;\" width=\"97\">162881-26-7<\/td>\n<td class=\"et3\" style=\"width: 299.00pt;\" width=\"398\">\u00d3xido de fenilbis(2,4,6-trimetilbenzoil)fosfina<\/td>\n<\/tr>\n<tr style=\"height: 16.00pt;\">\n<td class=\"et4\" style=\"height: 16.00pt; width: 126.00pt;\" width=\"168\" height=\"21\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/speedcure-itx-cas-5495-84-1\/\"><span style=\"color: #00ccff;\">lcnacure\u00ae ITX<\/span><\/a><\/td>\n<td class=\"et3\" style=\"width: 73.00pt;\" width=\"97\">5495-84-1<\/td>\n<td class=\"et3\" style=\"width: 299.00pt;\" width=\"398\">2-Isopropiltioxantona<\/td>\n<\/tr>\n<tr style=\"height: 16.00pt;\">\n<td class=\"et4\" style=\"height: 16.00pt; width: 126.00pt;\" width=\"168\" height=\"21\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/lcnacure-detx-cas-82799-44-8\/\"><span style=\"color: #00ccff;\">lcnacure\u00ae DETX<\/span><\/a><\/td>\n<td class=\"et3\" style=\"width: 73.00pt;\" width=\"97\">82799-44-8<\/td>\n<td class=\"et3\" style=\"width: 299.00pt;\" width=\"398\">2,4-Dietil-9H-ti\u00f3xanteno-9-ona<\/td>\n<\/tr>\n<tr style=\"height: 16.00pt;\">\n<td class=\"et4\" style=\"height: 16.00pt; width: 126.00pt;\" width=\"168\" height=\"21\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/bdk-benzil-dimethyl-ketal-cas-24650-42-8\/\"><span style=\"color: #00ccff;\">lcnacure\u00ae BDK<\/span><\/a>\/651<\/td>\n<td class=\"et3\" style=\"width: 73.00pt;\" width=\"97\">24650-42-8<\/td>\n<td class=\"et3\" style=\"width: 299.00pt;\" width=\"398\">2,2-Dimetoxi-2-fenilacetofenona<\/td>\n<\/tr>\n<tr style=\"height: 16.00pt;\">\n<td class=\"et4\" style=\"height: 16.00pt; width: 126.00pt;\" width=\"168\" height=\"21\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-907-cas-71868-10-5\/\"><span style=\"color: #00ccff;\">lcnacure\u00ae 907<\/span><\/a><\/td>\n<td class=\"et3\" style=\"width: 73.00pt;\" width=\"97\">71868-10-5<\/td>\n<td class=\"et3\" style=\"width: 299.00pt;\" width=\"398\">2-Metil-4\u2032-(metiltio)-2-morfolinopropiofenona<\/td>\n<\/tr>\n<tr style=\"height: 16.00pt;\">\n<td class=\"et4\" style=\"height: 16.00pt; width: 126.00pt;\" width=\"168\" height=\"21\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/lcnacure-184-cas-947-19-3\/\"><span style=\"color: #00ccff;\">lcnacure\u00ae 184<\/span><\/a><\/td>\n<td class=\"et3\" style=\"width: 73.00pt;\" width=\"97\">947-19-3<\/td>\n<td class=\"et3\" style=\"width: 299.00pt;\" width=\"398\">1-Hidroxiciclohexil fenil cetona<\/td>\n<\/tr>\n<tr style=\"height: 16.00pt;\">\n<td class=\"et4\" style=\"height: 16.00pt; width: 126.00pt;\" width=\"168\" height=\"21\">lcnacure\u00aeMBF<\/td>\n<td class=\"et3\" style=\"width: 73.00pt;\" width=\"97\">15206-55-0<\/td>\n<td class=\"et3\" style=\"width: 299.00pt;\" width=\"398\">Metilbenzoilformato<\/td>\n<\/tr>\n<tr style=\"height: 31.75pt;\">\n<td class=\"et4\" style=\"height: 31.75pt; width: 126.00pt;\" width=\"168\" height=\"42\">lcnacure\u00ae150<\/td>\n<td class=\"et5\" style=\"width: 73.00pt;\" width=\"97\">163702-01-0<\/td>\n<td class=\"et3\" style=\"width: 299.00pt;\" width=\"398\">Benzeno, (1-metiletenil)-, homopol\u00edmero,<br \/>\nderivados de ar-(2-hidroxi-2-metil-1-oxopropil)<\/td>\n<\/tr>\n<tr style=\"height: 16.00pt;\">\n<td class=\"et4\" style=\"height: 16.00pt; width: 126.00pt;\" width=\"168\" height=\"21\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/lcnacure-160-cas-71868-15-0\/\"><span style=\"color: #00ccff;\">lcnacure\u00ae160<\/span><\/a><\/td>\n<td class=\"et3\" style=\"width: 73.00pt;\" width=\"97\">71868-15-0<\/td>\n<td class=\"et3\" style=\"width: 299.00pt;\" width=\"398\">Alfa-hidroxi-cetona difuncional<\/td>\n<\/tr>\n<tr style=\"height: 16.00pt;\">\n<td class=\"et4\" style=\"height: 16.00pt; width: 126.00pt;\" width=\"168\" height=\"21\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"https:\/\/longchangchemical.com\/pt\/product\/irgacure-1173-cas-7473-98-5\/\">lcnacure\u00ae 1173<\/a><\/span><\/td>\n<td class=\"et3\" style=\"width: 73.00pt;\" width=\"97\">7473-98-5<\/td>\n<td class=\"et3\" style=\"width: 299.00pt;\" width=\"398\">2-Hidroxi-2-metilpropiofenona<\/td>\n<\/tr>\n<tr style=\"height: 16.00pt;\">\n<td class=\"et4\" style=\"height: 16.00pt; width: 126.00pt;\" width=\"168\" height=\"21\">lcnacure\u00aeEMK<\/td>\n<td class=\"et3\" style=\"width: 73.00pt;\" width=\"97\">90-93-7<\/td>\n<td class=\"et3\" style=\"width: 299.00pt;\" width=\"398\">4,4\u2032-Bis(dietilamino) benzofenona<\/td>\n<\/tr>\n<tr style=\"height: 16.00pt;\">\n<td class=\"et4\" style=\"height: 16.00pt; width: 126.00pt;\" width=\"168\" height=\"21\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/lcnacure-pbz-cas-2128-93-0\/\"><span style=\"color: #00ccff;\">lcnacure\u00ae PBZ<\/span><\/a><\/td>\n<td class=\"et3\" style=\"width: 73.00pt;\" width=\"97\">2128-93-0<\/td>\n<td class=\"et3\" style=\"width: 299.00pt;\" width=\"398\">4-Benzoilbifenil<\/td>\n<\/tr>\n<tr style=\"height: 16.00pt;\">\n<td class=\"et4\" style=\"height: 16.00pt; width: 126.00pt;\" width=\"168\" height=\"21\">lcnacure\u00aeOMBB\/MBB<\/td>\n<td class=\"et3\" style=\"width: 73.00pt;\" width=\"97\">606-28-0<\/td>\n<td class=\"et3\" style=\"width: 299.00pt;\" width=\"398\">2-Benzoilbenzoato de metila<\/td>\n<\/tr>\n<tr style=\"height: 26.00pt;\">\n<td class=\"et4\" style=\"height: 26.00pt; width: 126.00pt;\" width=\"168\" height=\"34\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"https:\/\/longchangchemical.com\/pt\/product\/lcnacure-784-cas-125051-32-3\/\">lcnacure\u00ae 784<\/a><\/span>\/FMT<\/td>\n<td class=\"et3\" style=\"width: 73.00pt;\" width=\"97\">125051-32-3<\/td>\n<td class=\"et3\" style=\"width: 299.00pt;\" width=\"398\">BIS(2,6-DIFLUORO-3-(1-HIDROPIRROL-1-IL)FENIL)TITANOCENO<\/td>\n<\/tr>\n<tr style=\"height: 16.00pt;\">\n<td class=\"et4\" style=\"height: 16.00pt; width: 126.00pt;\" width=\"168\" height=\"21\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/sincure-bp-cas-119-61-9\/\"><span style=\"color: #00ccff;\">lcnacure\u00ae BP<\/span><\/a><\/td>\n<td class=\"et3\" style=\"width: 73.00pt;\" width=\"97\">119-61-9<\/td>\n<td class=\"et3\" style=\"width: 299.00pt;\" width=\"398\">Benzofenona<\/td>\n<\/tr>\n<tr style=\"height: 31.50pt;\">\n<td class=\"et4\" style=\"height: 31.50pt; width: 126.00pt;\" width=\"168\" height=\"42\">lcnacure\u00ae754<\/td>\n<td class=\"et5\" style=\"width: 73.00pt;\" width=\"97\">211510-16-6<\/td>\n<td class=\"et5\" style=\"width: 299.00pt;\" width=\"398\">\u00c1cido benzenoac\u00e9tico, alfa-oxo-, \u00e9ster oxidi-2,1-etanodil<\/td>\n<\/tr>\n<tr style=\"height: 16.00pt;\">\n<td class=\"et4\" style=\"height: 16.00pt; width: 126.00pt;\" width=\"168\" height=\"21\">lcnacure\u00aeCBP<\/td>\n<td class=\"et3\" style=\"width: 73.00pt;\" width=\"97\">134-85-0<\/td>\n<td class=\"et3\" style=\"width: 299.00pt;\" width=\"398\">4-Clorobenzofenona<\/td>\n<\/tr>\n<tr style=\"height: 16.00pt;\">\n<td class=\"et4\" style=\"height: 16.00pt; width: 126.00pt;\" width=\"168\" height=\"21\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/lcnacure-mbp-cas-134-84-9\/\"><span style=\"color: #00ccff;\">lcnacure\u00ae MBP<\/span><\/a><\/td>\n<td class=\"et3\" style=\"width: 73.00pt;\" width=\"97\">134-84-9<\/td>\n<td class=\"et3\" style=\"width: 299.00pt;\" width=\"398\">4-Metilbenzofenona<\/td>\n<\/tr>\n<tr style=\"height: 16.00pt;\">\n<td class=\"et4\" style=\"height: 16.00pt; width: 126.00pt;\" width=\"168\" height=\"21\">lcnacure\u00aeEHA<\/td>\n<td class=\"et3\" style=\"width: 73.00pt;\" width=\"97\">21245-02-3<\/td>\n<td class=\"et3\" style=\"width: 299.00pt;\" width=\"398\">4-dimetilaminobenzoato de 2-etil-hexila<\/td>\n<\/tr>\n<tr style=\"height: 16.00pt;\">\n<td class=\"et4\" style=\"height: 16.00pt; width: 126.00pt;\" width=\"168\" height=\"21\">lcnacure\u00aeDMB<\/td>\n<td class=\"et6\">2208-05-1<\/td>\n<td class=\"et3\" style=\"width: 299.00pt;\" width=\"398\">Benzoato de 2-(dimetilamino)etila<\/td>\n<\/tr>\n<tr style=\"height: 16.00pt;\">\n<td class=\"et4\" style=\"height: 16.00pt; width: 126.00pt;\" width=\"168\" height=\"21\">lcnacure\u00aeEDB<\/td>\n<td class=\"et3\" style=\"width: 73.00pt;\" width=\"97\">10287-53-3<\/td>\n<td class=\"et3\" style=\"width: 299.00pt;\" width=\"398\">4-dimetilaminobenzoato de etila<\/td>\n<\/tr>\n<tr style=\"height: 31.75pt;\">\n<td class=\"et4\" style=\"height: 31.75pt; width: 126.00pt;\" width=\"168\" height=\"42\">lcnacure\u00ae250<\/td>\n<td class=\"et5\" style=\"width: 73.00pt;\" width=\"97\">344562-80-7<\/td>\n<td class=\"et3\" style=\"width: 299.00pt;\" width=\"398\">(4-Metilfenil) [4-(2-metilpropil)fenil] iod\u00f4nio<br \/>\nhexafluorofosfato<\/td>\n<\/tr>\n<tr style=\"height: 16.00pt;\">\n<td class=\"et4\" style=\"height: 16.00pt; width: 126.00pt;\" width=\"168\" height=\"21\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/lcnacure-369-cas-119313-12-1\/\"><span style=\"color: #00ccff;\">lcnacure\u00ae 369<\/span><\/a><\/td>\n<td class=\"et3\" style=\"width: 73.00pt;\" width=\"97\">119313-12-1<\/td>\n<td class=\"et3\" style=\"width: 299.00pt;\" width=\"398\">2-Benzil-2-(dimetilamino)-4\u2032-morfolinobutirofenona<\/td>\n<\/tr>\n<tr style=\"height: 16.00pt;\">\n<td class=\"et4\" style=\"height: 16.00pt; width: 126.00pt;\" width=\"168\" height=\"21\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/lcnacure-379-cas-119344-86-4\/\"><span style=\"color: #00ccff;\">lcnacure\u00ae 379<\/span><\/a><\/td>\n<td class=\"et3\" style=\"width: 73.00pt;\" width=\"97\">119344-86-4<\/td>\n<td class=\"et3\" style=\"width: 299.00pt;\" width=\"398\">1-Butanona, 2-(dimetilamino)-2-(4-metilfenil)metil-1-4-(4-morfolinil)fenil-<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\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-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\/irgacure-1173-cas-7473-98-5\/\">CHLUMINIT 1173<\/a>:<\/strong> A practical comparison point for classic short-wave UV initiation.<\/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 de COA, MSDS ou TDS, preencha suas informa\u00e7\u00f5es de contato no formul\u00e1rio abaixo. Normalmente, entraremos em contato em at\u00e9 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>UV absorber is such a class of substances, it can absorb sunlight or fluorescent light source in the ultraviolet wavelength part, and its own physical properties, structure does not change.<\/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-5459","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 - 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