{"id":7722,"date":"2024-12-12T12:41:14","date_gmt":"2024-12-12T12:41:14","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=7722"},"modified":"2026-04-28T10:42:44","modified_gmt":"2026-04-28T10:42:44","slug":"irgacure-819-and-pegda-monomer-in-3d-printing","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/fr\/irgacure-819-and-pegda-monomer-in-3d-printing\/","title":{"rendered":"Irgacure 819 et monom\u00e8re PEGDA dans l'impression 3D"},"content":{"rendered":"<p>Le photo-initiateur 819 et le monom\u00e8re PEGDA jouent un r\u00f4le de plus en plus important dans l'impression 3D. Pour les usines qui utilisent le photo-initiateur 819 et le monom\u00e8re PEGDA dans l'impression 3D, il est essentiel de mieux comprendre leurs propri\u00e9t\u00e9s et les points cl\u00e9s de leur application afin d'am\u00e9liorer la qualit\u00e9 et l'efficacit\u00e9 de l'impression. Dans cet article, nous discuterons de l'application du photo-initiateur 819 et du monom\u00e8re PEGDA dans l'impression 3D, nous analyserons le myst\u00e8re et nous fournirons des solutions pratiques.<\/p>\n<p>Tout d'abord, introduction du photo-initiateur 819 et du monom\u00e8re PEGDA<\/p>\n<p>(A) Propri\u00e9t\u00e9s du monom\u00e8re PEGDA<\/p>\n<p>Le poly (\u00e9thyl\u00e8ne glycol) diacrylate (PEG - DA), en particulier le poids mol\u00e9culaire de 250 PEG - DA, occupe une position unique dans les mat\u00e9riaux d'impression 3D. Il poss\u00e8de une excellente biocompatibilit\u00e9 et des propri\u00e9t\u00e9s physicochimiques ajustables qui lui permettent de s'adapter \u00e0 un large \u00e9ventail de besoins en mati\u00e8re d'impression 3D. Par exemple, dans le domaine biom\u00e9dical de l'impression d'\u00e9chafaudages pour l'ing\u00e9nierie tissulaire, le PEG-DA peut fournir un environnement propice \u00e0 la croissance cellulaire, et son degr\u00e9 de r\u00e9ticulation r\u00e9glable peut contr\u00f4ler la porosit\u00e9 et les propri\u00e9t\u00e9s m\u00e9caniques de l'\u00e9chafaudage.<\/p>\n<p>(ii) R\u00f4le du photo-initiateur 819<\/p>\n<p>Le photo-initiateur 819 (Irgacure - 819) joue un r\u00f4le cl\u00e9 dans l'initiation de la r\u00e9action de photopolym\u00e9risation dans le processus d'impression 3D. Lorsqu'il est dissous dans le PEG - DA \u00e0 une concentration de 0,2% wt\/vol, sous une longueur d'onde de lumi\u00e8re sp\u00e9cifique, le photo-initiateur 819 peut absorber l'\u00e9nergie des photons et g\u00e9n\u00e9rer des radicaux libres, d\u00e9clenchant ainsi la r\u00e9action de polym\u00e9risation entre les monom\u00e8res de PEG - DA, de sorte que la r\u00e9sine liquide est progressivement durcie. Ce processus doit \u00eatre pr\u00e9par\u00e9 dans l'obscurit\u00e9 pour \u00e9viter les r\u00e9actions spontan\u00e9es avec la lumi\u00e8re ambiante et pour s'assurer que le photo-initiateur initie correctement la r\u00e9action de polym\u00e9risation dans les conditions de lumi\u00e8re attendues.<\/p>\n<p>Deuxi\u00e8mement, l'analyse des probl\u00e8mes dans le processus d'impression<\/p>\n<p>(A) les probl\u00e8mes de qualit\u00e9 et de pr\u00e9cision de la surface<\/p>\n<p>Lors des op\u00e9rations d'impression 3D, nous rencontrons souvent une qualit\u00e9 de surface et une pr\u00e9cision insatisfaisantes. Par exemple, lors d'une de mes tentatives d'impression, j'ai imprim\u00e9 un mod\u00e8le sans remplacer le r\u00e9servoir de r\u00e9sine et la plaque de construction, et j'ai constat\u00e9 que la rugosit\u00e9 de la surface \u00e9tait importante et que la structure fine du mod\u00e8le n'\u00e9tait pas rendue avec pr\u00e9cision. Cela peut \u00eatre d\u00fb \u00e0 la distribution in\u00e9gale de la concentration du photo-initiateur 819. Pendant le processus de m\u00e9lange de la r\u00e9sine, si la r\u00e9sine n'est pas suffisamment bien agit\u00e9e, la concentration du photo-initiateur dans certaines zones est trop \u00e9lev\u00e9e ou trop faible, ce qui entra\u00eene une vitesse de r\u00e9action de polym\u00e9risation irr\u00e9guli\u00e8re, affectant ainsi la qualit\u00e9 et la pr\u00e9cision de la surface.<\/p>\n<p>(ii) D\u00e9faut d'impression des canaux<\/p>\n<p>Le probl\u00e8me de l'\u00e9chec de l'impression des canaux est plus grave. Par exemple, un canal d'un diam\u00e8tre de 1 mm dans le dessin n'a pas \u00e9t\u00e9 imprim\u00e9 avec succ\u00e8s. Cela peut \u00eatre d\u00fb au manque de fluidit\u00e9 de la r\u00e9sine ; la viscosit\u00e9 de la r\u00e9sine apr\u00e8s le m\u00e9lange du monom\u00e8re PEG-DA avec le photo-initiateur 819 peut \u00eatre affect\u00e9e par un certain nombre de facteurs, tels que la temp\u00e9rature, la concentration du photo-initiateur, etc. Si la viscosit\u00e9 de la r\u00e9sine est trop \u00e9lev\u00e9e, la r\u00e9sine ne pourra pas \u00eatre imprim\u00e9e du tout. Si la viscosit\u00e9 de la r\u00e9sine est trop \u00e9lev\u00e9e, il est difficile pour la r\u00e9sine de remplir la structure des canaux fins en douceur pendant le processus d'impression, ce qui entra\u00eene des impressions manquantes.<\/p>\n<p>III. Solutions et strat\u00e9gies d'optimisation<\/p>\n<p>(i) Optimisation du processus de m\u00e9lange<\/p>\n<p>Afin d'assurer une distribution uniforme du photo-initiateur 819 dans le monom\u00e8re PEG-DA, il convient d'utiliser un processus de m\u00e9lange plus pr\u00e9cis. Par exemple, un m\u00e9langeur \u00e0 grande vitesse doit \u00eatre utilis\u00e9 pour m\u00e9langer \u00e0 une vitesse et une dur\u00e9e sp\u00e9cifiques, et une ultrasonication doit \u00eatre effectu\u00e9e apr\u00e8s le m\u00e9lange pour briser davantage les particules agglom\u00e9r\u00e9es qui peuvent \u00eatre pr\u00e9sentes. Il a \u00e9t\u00e9 d\u00e9montr\u00e9 que la dispersion des photo-initiateurs est nettement am\u00e9lior\u00e9e dans les r\u00e9sines qui ont \u00e9t\u00e9 soumises \u00e0 des ultrasons pendant 15 \u00e0 30 minutes, et que la qualit\u00e9 de la surface des mod\u00e8les imprim\u00e9s est nettement meilleure.<\/p>\n<p>(ii) Ajustement des propri\u00e9t\u00e9s de la r\u00e9sine<\/p>\n<p>Pour r\u00e9soudre le probl\u00e8me de la fluidit\u00e9 insuffisante de la r\u00e9sine, il est possible d'ajuster la formule de la r\u00e9sine. D'une part, la concentration du photo-initiateur 819 peut \u00eatre r\u00e9duite de mani\u00e8re appropri\u00e9e pour r\u00e9duire le degr\u00e9 de r\u00e9ticulation de la r\u00e9sine dans une certaine plage, r\u00e9duisant ainsi la viscosit\u00e9. D'autre part, la r\u00e9sine UV peut \u00eatre remplac\u00e9e, le monom\u00e8re PEGDA est durci avec une LED de 385nm, peut \u00eatre remplac\u00e9 par un monom\u00e8re UV durcissant au laser de 405nm.<\/p>\n<p>Partage de cas et d'exp\u00e9riences<\/p>\n<p>Dans la production r\u00e9elle d'une usine d'impression 3D, ils ont \u00e9galement rencontr\u00e9 des probl\u00e8mes similaires. Lors de l'utilisation du photo-initiateur 819 et du monom\u00e8re PEGDA pour imprimer des pi\u00e8ces aux structures complexes, la qualit\u00e9 et la pr\u00e9cision de la surface ne r\u00e9pondaient pas aux exigences du client, et les petits canaux internes \u00e9taient souvent obstru\u00e9s. Le processus de m\u00e9lange a \u00e9t\u00e9 optimis\u00e9 en combinant le m\u00e9lange en plusieurs \u00e9tapes et l'ultrasonication, tandis que la formulation de la r\u00e9sine a \u00e9t\u00e9 ajust\u00e9e pour r\u00e9duire la concentration du photo-initiateur 819 et ajouter une petite quantit\u00e9 de diluant. Apr\u00e8s une s\u00e9rie d'ajustements, la surface des pi\u00e8ces imprim\u00e9es est lisse, les canaux internes sont complets et clairs, et le taux de qualification du produit est pass\u00e9 de 60% \u00e0 90%.<\/p>\n<p>&nbsp;<\/p>\n<p>L'analyse du photo-initiateur 819 et du monom\u00e8re PEGDA dans l'application de l'impression 3D nous a permis de conna\u00eetre leurs caract\u00e9ristiques, les probl\u00e8mes \u00e9ventuels rencontr\u00e9s dans le processus d'impression et les solutions correspondantes. Pour les usines qui utilisent le photo-initiateur 819 et le monom\u00e8re PEGDA dans l'impression 3D, ces points peuvent am\u00e9liorer efficacement la qualit\u00e9 d'impression et la productivit\u00e9. \u00c0 l'avenir, \u00e0 mesure que la science des mat\u00e9riaux et la technologie de l'impression 3D continueront d'\u00e9voluer, les performances du photo-initiateur 819 et du monom\u00e8re PEGDA pourront \u00eatre encore optimis\u00e9es, ce qui ouvrira encore plus de possibilit\u00e9s pour l'impression 3D.<br \/>\nSi vous avez rencontr\u00e9 des probl\u00e8mes lors du processus d'impression 3D avec le photo-initiateur 819 et le monom\u00e8re PEGDA, n'h\u00e9sitez pas \u00e0 partager votre exp\u00e9rience dans les commentaires ci-dessous, afin que nous puissions explorer ensemble de meilleures solutions.<\/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\/fr\/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\/fr\/product\/irgacure-1173-cas-7473-98-5\/\">CHLUMINIT 1173<\/a>:<\/strong> A practical comparison point for classic short-wave UV initiation.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-itx-cas-5495-84-1\/\">CHLUMINIT ITX<\/a>:<\/strong> A useful long-wave support route in many printing-ink packages.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/photoinitiator-cq\/\">CHLUMINIT CQ<\/a>:<\/strong> A direct reference for visible-light and color-sensitive curing discussions.<\/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>Contactez-nous d\u00e8s maintenant !<\/b><\/strong><\/h2>\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<h4><strong><b>Si vous avez besoin du prix du photo-initiateur 819, veuillez remplir vos coordonn\u00e9es dans le formulaire ci-dessous, nous vous contacterons g\u00e9n\u00e9ralement dans les 24 heures. Vous pouvez \u00e9galement m'envoyer un courriel <span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"mailto:info@longchangchemical.com\">info@longchangchemical.com<\/a><\/span>\u00a0pendant les heures de travail ( 8:30 am to 6:00 pm UTC+8 Mon.~Sat. ) ou utilisez le chat en direct du site web pour obtenir une r\u00e9ponse rapide.<\/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\/fr\/product\/photoinitiator-tpo-cas-75980-60-8\/\"><span style=\"color: #00ccff;\">Photoinitiateur 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\/fr\/product\/cas-270586-78-2\/\"><span style=\"color: #00ccff;\">Photoinitiateur 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\/fr\/product\/photoinitiator-pd-01-cas-579-07-7\/\"><span style=\"color: #00ccff;\">Photoinitiateur 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\/fr\/product\/photoinitiator-pbz-cas-2128-93-0\/\"><span style=\"color: #00ccff;\">Photoinitiateur 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\/fr\/product\/photoinitiator-oxe-02-cas-478556-66-0\/\"><span style=\"color: #00ccff;\">Photoinitiateur 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\/fr\/product\/photoinitiator-ombb\/\"><span style=\"color: #00ccff;\">Photoinitiateur 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\/fr\/product\/photoinitiator-mpbz-6012\/\"><span style=\"color: #00ccff;\">Photoinitiateur 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\/fr\/product\/photoinitiator-mbp-cas-134-84-9\/\"><span style=\"color: #00ccff;\">Photoinitiateur 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\/fr\/product\/photoinitiator-mbf-cas-15206-55-0\/\"><span style=\"color: #00ccff;\">Photoinitiateur 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\/fr\/product\/photoinitiator-lap-cas-85073-19-4\/\"><span style=\"color: #00ccff;\">Photoinitiateur 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\/fr\/product\/photoinitiator-itx-cas-5495-84-1\/\"><span style=\"color: #00ccff;\">Photoinitiateur 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\/fr\/product\/photoinitiator-emk\/\"><span style=\"color: #00ccff;\">Photoinitiateur 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\/fr\/product\/photoinitiator-eha-cas-21245-02-3\/\"><span style=\"color: #00ccff;\">Photoinitiateur 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\/fr\/product\/photoinitiator-edb-cas-10287-53-3\/\"><span style=\"color: #00ccff;\">Photo-initiateur 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\/fr\/product\/photoinitiator-detx-cas-82799-44-8\/\"><span style=\"color: #00ccff;\">Photoinitiateur 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\/fr\/product\/photoinitiator-cq\/\"><span style=\"color: #00ccff;\">Photoinitiateur CQ \/ Camphorquinone<\/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\/fr\/product\/photoinitiator-cbp-cas-134-85-0\/\"><span style=\"color: #00ccff;\">Photoinitiateur 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\/fr\/product\/photoinitiator-bp-cas-119-61-9\/\"><span style=\"color: #00ccff;\">Photo-initiateur BP \/ Benzoph\u00e9none<\/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\/fr\/product\/photoinitiator-bms\/\"><span style=\"color: #00ccff;\">Photoinitiateur 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\/fr\/product\/photoinitiator-938\/\"><span style=\"color: #00ccff;\">Photoinitiateur 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\/fr\/product\/photoinitiator-937-cas-71786-70-4\/\"><span style=\"color: #00ccff;\">Photoinitiateur 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\/fr\/product\/photoinitiator-819-dw\/\"><span style=\"color: #00ccff;\">Photo-initiateur 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\/fr\/product\/photoinitiator-819-irgacure-819-cas-162881-26-7\/\"><span style=\"color: #00ccff;\">Photoinitiateur 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\/fr\/product\/photoinitiator-784-cas-125051-32-3\/\"><span style=\"color: #00ccff;\">Photoinitiateur 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\/fr\/product\/photoinitiator-754-cas-211510-16-6-442536-99-4\/\"><span style=\"color: #00ccff;\">Photoinitiateur 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\/fr\/product\/photoinitiator-6993-cas-71449-78-0\/\"><span style=\"color: #00ccff;\">Photoinitiateur 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\/fr\/product\/photoinitiator-6976\/\"><span style=\"color: #00ccff;\">Photoinitiateur 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\/fr\/product\/photoinitiator-379-cas-119344-86-4\/\"><span style=\"color: #00ccff;\">Photoinitiateur 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\/fr\/product\/photoinitiator-369-cas-119313-12-1\/\"><span style=\"color: #00ccff;\">Photoinitiateur 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\/fr\/product\/photoinitiator-160\/\">Photoinitiateur 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\/fr\/product\/photoinitiator-1206\/\"><span style=\"color: #00ccff;\">Photoinitiateur 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\/fr\/product\/irgacure-1173-cas-7473-98-5\/\"><span style=\"color: #00ccff;\">Photoinitiateur 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>Photoinitiator 819 and PEGDA monomer are playing an increasingly important role in 3D printing. For factories using photoinitiator 819 and PEGDA monomer in 3D printing, a deeper understanding of their<\/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-7722","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>Irgacure 819 and PEGDA Monomer in 3D Printing - Longchang Chemical<\/title>\n<meta name=\"description\" content=\"This article focuses on the use of photoinitiator 819 and PEGDA monomer in 3D printing, analyses printing problems and provides solutions to help 3D printing factories using these materials to improve print quality and efficiency, and gain more knowledge about 3D printing.\" \/>\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\/fr\/irgacure-819-and-pegda-monomer-in-3d-printing\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Irgacure 819 and PEGDA Monomer in 3D Printing - 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