{"id":5455,"date":"2022-08-14T07:09:49","date_gmt":"2022-08-14T07:09:49","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=5455"},"modified":"2026-04-28T10:42:06","modified_gmt":"2026-04-28T10:42:06","slug":"how-to-choose-pigments-for-coatings","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/pt\/how-to-choose-pigments-for-coatings\/","title":{"rendered":"Como escolher pigmentos para revestimentos com base nos sete indicadores de desempenho dos pigmentos?"},"content":{"rendered":"<h1><strong>Como escolher pigmentos para revestimentos com base nos sete indicadores de desempenho dos pigmentos?<\/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>Existem v\u00e1rios pigmentos para revestimentos, como escolher um determinado pigmento para revestimentos? Veja a seguir sete indicadores de desempenho de pigmentos.<\/p>\n<p>Primeiro, a cor do pigmento.<\/p>\n<p>A cor do pigmento se deve \u00e0 absor\u00e7\u00e3o seletiva de diferentes comprimentos de onda da luz vis\u00edvel, e a cor do pigmento tamb\u00e9m \u00e9 afetada pelas propriedades f\u00edsicas, como a forma cristalina, o tamanho da part\u00edcula e o desempenho da dispers\u00e3o. A cor do pigmento tamb\u00e9m \u00e9 afetada pela luz que incide sobre ele, como, por exemplo, no escuro, o pigmento n\u00e3o apresenta nenhuma cor, a cor na luz forte \u00e9 mais brilhante do que na luz escura, o mesmo pigmento sob diferentes fontes de luz (como luz solar, luz incandescente, fluoresc\u00eancia etc.) tamb\u00e9m pode apresentar cores diferentes.<\/p>\n<p>Segundo, o poder de colora\u00e7\u00e3o.<\/p>\n<p>O poder de colora\u00e7\u00e3o do pigmento refere-se \u00e0 capacidade de um pigmento de mostrar a tonalidade da cor ap\u00f3s a mistura com outro pigmento. Quanto mais forte for o poder de colora\u00e7\u00e3o da mesma cor, menor ser\u00e1 a quantidade de pasta de cor, menor ser\u00e1 o grau de resist\u00eancia \u00e0 \u00e1gua do revestimento de pasta de cor e menor ser\u00e1 o impacto do desempenho do filme de revestimento. Com a mesma cor, a qualidade dos produtos de diferentes fabricantes ser\u00e1 muito diferente. A for\u00e7a do poder de colora\u00e7\u00e3o do pigmento n\u00e3o depende apenas de sua natureza, mas tamb\u00e9m tem uma certa rela\u00e7\u00e3o com seu grau de dispers\u00e3o. Quanto maior a dispers\u00e3o do pigmento, maior o poder de colora\u00e7\u00e3o.<\/p>\n<p>Terceiro, poder de cobertura.<\/p>\n<p>O pigmento no filme de revestimento pode cobrir a superf\u00edcie do objeto a ser revestido, de modo que o substrato n\u00e3o seja mais coberto pelo filme de revestimento e a capacidade de revela\u00e7\u00e3o. A for\u00e7a do poder de cobertura do pigmento depende principalmente do \u00edndice de refra\u00e7\u00e3o, da capacidade de absor\u00e7\u00e3o de luz, da estrutura cristalina, do grau de dispers\u00e3o e de outros fatores, e tamb\u00e9m depende de sua capacidade de absorver a luz irradiada na superf\u00edcie do revestimento. Por exemplo, o negro de fumo pode absorver completamente a luz irradiada sobre ele, portanto, seu poder de cobertura \u00e9 muito forte. O poder de cobertura dos pigmentos de cores opacas tamb\u00e9m depende de sua absor\u00e7\u00e3o seletiva de luz.<\/p>\n<p>Quando o pigmento \u00e9 disperso uniformemente no material de base, o tamanho da part\u00edcula \u00e9 pequeno e a \u00e1rea de superf\u00edcie espec\u00edfica \u00e9 aumentada, portanto, o poder de cobertura tamb\u00e9m aumenta. No entanto, se o tamanho da part\u00edcula de pigmento for igual \u00e0 metade do comprimento de onda da luz, a luz passar\u00e1 pela part\u00edcula sem refra\u00e7\u00e3o, e a part\u00edcula ser\u00e1 transparente.<\/p>\n<p>Quanto maior for a cristalinidade do pigmento, maior ser\u00e1 seu poder de cobertura. O poder de cobertura do pigmento misturado n\u00e3o pode ser calculado pela lei da adi\u00e7\u00e3o de acordo com o poder de cobertura de cada componente da mistura; de fato, o poder de cobertura da maioria dos pigmentos misturados \u00e9 maior do que o valor calculado. Portanto, a mistura de pigmentos e cargas em uma propor\u00e7\u00e3o adequada n\u00e3o afetar\u00e1 seu poder de cobertura e ajudar\u00e1 a reduzir o custo. Se o poder de cobertura da tinta for alto, a \u00e1rea de pintura ser\u00e1 alta e o custo do projeto ser\u00e1 baixo.<\/p>\n<p>Quarto, dispersibilidade e adaptabilidade.<\/p>\n<p>A dispersibilidade do pigmento refere-se \u00e0 dificuldade de dispers\u00e3o das part\u00edculas de pigmento no material de base do revestimento e seu estado de dispers\u00e3o ap\u00f3s a dispers\u00e3o, o que \u00e9 influenciado pelo desempenho do pigmento, pelo m\u00e9todo de prepara\u00e7\u00e3o, pelo tamanho da part\u00edcula e pela distribui\u00e7\u00e3o do tamanho da part\u00edcula. A dispers\u00e3o do pigmento tem influ\u00eancia \u00f3bvia sobre a for\u00e7a do poder de cobertura e do poder de colora\u00e7\u00e3o do pigmento, al\u00e9m de influenciar as propriedades f\u00edsicas e qu\u00edmicas do filme de revestimento.<\/p>\n<p>O problema da adaptabilidade do pigmento, que \u00e9 especialmente importante para revestimentos arquitet\u00f4nicos de emuls\u00e3o. Devido aos diferentes tipos de pigmentos, a fun\u00e7\u00e3o dos pigmentos tamb\u00e9m apresentar\u00e1 um certo grau de diferen\u00e7a, e essa tend\u00eancia \u00e9 mais \u00f3bvia para os pigmentos org\u00e2nicos. Se o pigmento estiver mal disperso na tinta e mal combinado com a tinta, a tinta poder\u00e1 apresentar flocula\u00e7\u00e3o ou at\u00e9 mesmo desbotamento.<\/p>\n<p>V. Resist\u00eancia \u00e0 luz e \u00e0s intemp\u00e9ries.<\/p>\n<p>A cor do pigmento mudar\u00e1 em diferentes graus sob a a\u00e7\u00e3o da luz. A cor do pigmento escurecer\u00e1 gradualmente sob a luz do sol por um longo per\u00edodo, e alguns pigmentos ficar\u00e3o escurecidos sob a a\u00e7\u00e3o dos raios ultravioleta na luz do sol. A tinta para paredes externas deve usar pigmentos com boa resist\u00eancia \u00e0 luz e \u00e0s intemp\u00e9ries. Em geral, a resist\u00eancia \u00e0 luz \u00e9 superior a 7~8 graus, sendo o grau 8 o melhor; a resist\u00eancia \u00e0s intemp\u00e9ries \u00e9 superior a 4~5 graus, sendo o grau 5 o melhor. Absorvedores de UV, estabilizadores de luz e outros aditivos podem aumentar a resist\u00eancia a intemp\u00e9ries de alguns pigmentos org\u00e2nicos at\u00e9 certo ponto.<\/p>\n<p>Em sexto lugar, a finura.<\/p>\n<p>A finura da pasta de cor n\u00e3o \u00e9 quanto mais fina, melhor, porque, como o azul de ftalocianina, o pigmento verde de ftalocianina em si \u00e9 um pigmento de mol\u00e9cula pequena, a finura \u00e9 muito pequena, a diferen\u00e7a de tamanho de part\u00edcula \u00e9 grande, a dispers\u00e3o \u00e9 ruim e a compatibilidade da tinta n\u00e3o \u00e9 boa, o custo da mistura de cores aumenta e tamb\u00e9m leva \u00e0 flora\u00e7\u00e3o da cor flutuante.<\/p>\n<p>Sete, resist\u00eancia a \u00e1cidos e \u00e1lcalis.<\/p>\n<p>A resist\u00eancia a \u00e1cidos e \u00e1lcalis do pigmento tamb\u00e9m \u00e9 um \u00edndice de desempenho importante para seu uso em revestimentos arquitet\u00f4nicos. Alguns pigmentos n\u00e3o s\u00e3o resistentes a \u00e1cidos e \u00e1lcalis, portanto n\u00e3o podem ser usados em tintas \u00e1cidas ou alcalinas, e as tintas produzidas n\u00e3o s\u00e3o adequadas para ambientes \u00e1cidos ou alcalinos.<\/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>There are various pigments for coatings, how to choose a certain pigment for coatings? Here are seven performance indicators of pigments to talk about. First, the color of pigment. The<\/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-5455","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>How to choose pigments for coatings from the seven performance indicators of pigments? - Longchang Chemical<\/title>\n<meta name=\"description\" content=\"There are various pigments for coatings, how to choose a certain pigment for coatings? 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