{"id":5647,"date":"2022-10-03T12:58:35","date_gmt":"2022-10-03T12:58:35","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=5647"},"modified":"2022-10-03T12:58:35","modified_gmt":"2022-10-03T12:58:35","slug":"why-is-it-necessary-to-add-a-polymerization-inhibitor-to-light-curing-coatings","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/fr\/why-is-it-necessary-to-add-a-polymerization-inhibitor-to-light-curing-coatings\/","title":{"rendered":"Pourquoi est-il n\u00e9cessaire d'ajouter un inhibiteur de polym\u00e9risation aux rev\u00eatements photopolym\u00e9risables ?"},"content":{"rendered":"<h1><strong>Pourquoi est-il n\u00e9cessaire d'ajouter un inhibiteur de polym\u00e9risation aux rev\u00eatements photopolym\u00e9risables ?<\/strong><\/h1>\n<p>Dans le processus de production des rev\u00eatements, certains types de rev\u00eatements contiennent des substances \u00e0 forte activit\u00e9 de polym\u00e9risation, faciles \u00e0 \u00eatre affect\u00e9es par des facteurs externes et \u00e0 polym\u00e9riser, aux rev\u00eatements photopolym\u00e9risables, par exemple, la composition principale des oligom\u00e8res et des diluants actifs des rev\u00eatements photopolym\u00e9risables est \u00e0 forte activit\u00e9 de polym\u00e9risation des acrylates, une autre composition importante des photo-initiateurs et extr\u00eamement facile \u00e0 produire des radicaux libres ou des cations de substances. Dans un tel syst\u00e8me mixte, il est tr\u00e8s facile de polym\u00e9riser sous l'influence de la lumi\u00e8re et de la chaleur ext\u00e9rieures, il est donc n\u00e9cessaire d'ajouter la bonne quantit\u00e9 d'inhibiteur de polym\u00e9risation. Cet article pr\u00e9sente aux lecteurs les caract\u00e9ristiques et les applications des inhibiteurs de polym\u00e9risation.<\/p>\n<p>L'inhibiteur de polym\u00e9risation emp\u00eache la polym\u00e9risation des additifs. L'inhibiteur de polym\u00e9risation peut mettre fin \u00e0 tous les radicaux libres, de sorte que la r\u00e9action de polym\u00e9risation est compl\u00e8tement arr\u00eat\u00e9e. Les inhibiteurs de polym\u00e9risation couramment utilis\u00e9s sont les ph\u00e9nols, les amines aromatiques, les compos\u00e9s nitr\u00e9s aromatiques, etc. L'oxyg\u00e8ne pr\u00e9sent dans l'air est un bon inhibiteur de polym\u00e9risation, car l'oxyg\u00e8ne est lui-m\u00eame un radical double, tr\u00e8s facile \u00e0 combiner avec les radicaux libres, g\u00e9n\u00e9rant des radicaux peroxydes, l'activit\u00e9 d'initiation est fortement r\u00e9duite, et finalement g\u00e9n\u00e9rant des oligom\u00e8res alternant monom\u00e8res et liaisons peroxydes. Les inhibiteurs de polym\u00e9risation des rev\u00eatements photopolym\u00e9risables sont principalement des ph\u00e9nols, tels que le p-hydroxyanisole, l'hydroquinone et le 2,6-di-tert-butyl-p-cr\u00e9sol. L'ajout d'hydroquinone entra\u00eene parfois un assombrissement de la couleur du syst\u00e8me et n'est donc souvent pas utilis\u00e9. Mais les inhibiteurs de polym\u00e9risation ph\u00e9noliques doivent \u00eatre en pr\u00e9sence d'oxyg\u00e8ne pour montrer l'effet de blocage de la polym\u00e9risation.<\/p>\n<p>En pr\u00e9sence d'inhibiteurs de polym\u00e9risation ph\u00e9nolique, les radicaux peroxydes sont rapidement \u00e9limin\u00e9s afin de garantir une concentration suffisante d'oxyg\u00e8ne dans le syst\u00e8me, ce qui prolonge le temps de blocage. Par cons\u00e9quent, outre l'ajout d'inhibiteurs de polym\u00e9risation ph\u00e9nolique pour am\u00e9liorer la stabilit\u00e9 du stockage, nous devons \u00e9galement pr\u00eater attention au stockage de la peinture dans le r\u00e9cipient, qui ne doit pas \u00eatre trop plein, afin de s'assurer qu'il y a suffisamment d'oxyg\u00e8ne.<\/p>","protected":false},"excerpt":{"rendered":"<p>Pourquoi est-il n\u00e9cessaire d'ajouter un inhibiteur de polym\u00e9risation aux rev\u00eatements photopolym\u00e9risables ? Dans le processus de production des rev\u00eatements, certains types de rev\u00eatements contiennent une activit\u00e9 de polym\u00e9risation \u00e9lev\u00e9e des substances, facilement affect\u00e9e par des facteurs externes et la polym\u00e9risation, aux rev\u00eatements photopolym\u00e9risables, par exemple, la composition principale des oligom\u00e8res des rev\u00eatements photopolym\u00e9risables et des diluants actifs sont des substances \u00e0 forte polym\u00e9risation [...]<\/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-5647","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>Why is it necessary to add a polymerization inhibitor to light-curing coatings? - Longchang Chemical<\/title>\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\/why-is-it-necessary-to-add-a-polymerization-inhibitor-to-light-curing-coatings\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Why is it necessary to add a polymerization inhibitor to light-curing coatings? - Longchang Chemical\" \/>\n<meta property=\"og:description\" content=\"Why is it necessary to add a polymerization inhibitor to light-curing coatings? In the production process of coatings, some types of coatings contain high polymerization activity of substances, easy to be affected by external factors and polymerization, to light-curing coatings, for example, the main composition of light-curing coatings oligomers and active diluents are high polymerization [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/longchangchemical.com\/fr\/why-is-it-necessary-to-add-a-polymerization-inhibitor-to-light-curing-coatings\/\" \/>\n<meta property=\"og:site_name\" content=\"Longchang Chemical\" \/>\n<meta property=\"article:published_time\" content=\"2022-10-03T12:58:35+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2024\/02\/logo-jpeg.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"1000\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Longchang Chemical\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/longchangchemical.com\/why-is-it-necessary-to-add-a-polymerization-inhibitor-to-light-curing-coatings\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/longchangchemical.com\/why-is-it-necessary-to-add-a-polymerization-inhibitor-to-light-curing-coatings\/\"},\"author\":{\"name\":\"Longchang Chemical\",\"@id\":\"https:\/\/longchangchemical.com\/#\/schema\/person\/ecb1ad846136c6f1ca534b62978c6a8e\"},\"headline\":\"Why is it necessary to add a polymerization inhibitor to light-curing coatings?\",\"datePublished\":\"2022-10-03T12:58:35+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/longchangchemical.com\/why-is-it-necessary-to-add-a-polymerization-inhibitor-to-light-curing-coatings\/\"},\"wordCount\":324,\"publisher\":{\"@id\":\"https:\/\/longchangchemical.com\/#organization\"},\"articleSection\":[\"Catalysts &amp; Chemical Auxiliary Agents\"],\"inLanguage\":\"fr-FR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/longchangchemical.com\/why-is-it-necessary-to-add-a-polymerization-inhibitor-to-light-curing-coatings\/\",\"url\":\"https:\/\/longchangchemical.com\/why-is-it-necessary-to-add-a-polymerization-inhibitor-to-light-curing-coatings\/\",\"name\":\"Why is it necessary to add a polymerization inhibitor to light-curing coatings? 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