{"id":5376,"date":"2022-07-14T01:12:43","date_gmt":"2022-07-14T01:12:43","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=5376"},"modified":"2026-04-28T10:42:04","modified_gmt":"2026-04-28T10:42:04","slug":"epoxy-resin-curing-agent-and-its-curing-mechanism","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/fr\/epoxy-resin-curing-agent-and-its-curing-mechanism\/","title":{"rendered":"Types courants d'agents de durcissement de la r\u00e9sine \u00e9poxy et leur m\u00e9canisme de durcissement"},"content":{"rendered":"<h1><strong>Types courants d'agents de durcissement de la r\u00e9sine \u00e9poxy et leur m\u00e9canisme de durcissement<\/strong><\/h1>\n<p><!-- lc-qa-start --><\/p>\n<p><strong>R\u00e9ponse rapide :<\/strong> Une formulation d&#039;encre d&#039;impression performante est g\u00e9n\u00e9ralement celle qui permet de maintenir l&#039;\u00e9quilibre entre la stabilit\u00e9 du processus et la qualit\u00e9 d&#039;impression finale, plut\u00f4t que de sur-optimiser un seul aspect du fonctionnement de la presse.<\/p>\n<p><!-- lc-qa-end --><\/p>\n<p>Cet article r\u00e9sume bri\u00e8vement les types courants d'agents de polym\u00e9risation des r\u00e9sines \u00e9poxy et leur m\u00e9canisme de polym\u00e9risation.<\/p>\n<p>1, agent de durcissement de classe alcaline WTF. y compris diamine aliphatique et polyamine, polyamine aromatique, autres compos\u00e9s azot\u00e9s et amine aliphatique modifi\u00e9e. L'effet de durcissement des amines primaires et secondaires sur la r\u00e9sine \u00e9poxy est d'ouvrir le groupe \u00e9poxy par l'hydrog\u00e8ne actif sur l'atome d'azote, et d'obtenir un durcissement r\u00e9ticul\u00e9. Les polyamines aliphatiques telles que l'\u00e9thyl\u00e8nediamine, l'hexanediamine, la di\u00e9thyl\u00e8netriamine, la tri\u00e9thyl\u00e8net\u00e9tramine, la di\u00e9thylaminopropylamine, etc. sont plus actives et peuvent rendre la r\u00e9sine \u00e9poxy r\u00e9ticul\u00e9e et durcie \u00e0 temp\u00e9rature ambiante ; tandis que les polyamines aromatiques sont moins actives, telles que la m-ph\u00e9nyl\u00e8nediamine, qui peut \u00eatre durcie \u00e0 150\u2103.<\/p>\n<p>2\u3001Agent de durcissement de type acide. Y compris les acides organiques, l'anhydride acide, le trifluorure de bore et ses complexes. L'acide dibasique et son anhydride, tels que l'anhydride mal\u00e9ique et l'anhydride phtalique, peuvent durcir la r\u00e9sine \u00e9poxy, mais doivent \u00eatre cuits \u00e0 une temp\u00e9rature plus \u00e9lev\u00e9e pour durcir compl\u00e8tement. L'anhydride r\u00e9agit d'abord avec le groupe hydroxyle de la r\u00e9sine \u00e9poxy pour g\u00e9n\u00e9rer un monoester, et le groupe carboxyle du monoester et le groupe \u00e9poxy subissent une addition et une est\u00e9rification pour former un ester double.<\/p>\n<p>3\u3001Agent de durcissement additif pour le moulage. Ce type d'agent de durcissement et de r\u00e9action d'addition d'\u00e9poxy constitue une partie du segment de cha\u00eene du produit de durcissement, et par la r\u00e9action de polym\u00e9risation graduelle de sorte que les mol\u00e9cules lin\u00e9aires se r\u00e9ticulent en mol\u00e9cules de structure corporelle, ce type d'agent de durcissement est \u00e9galement connu sous le nom d'agent de durcissement de type melon.<\/p>\n<p>4\u3001Agent de durcissement catalytique. Ce type d'agent de durcissement n'agit que sur l'initiation de la r\u00e9sine \u00e9poxy, ouvre le groupe \u00e9poxy, la r\u00e9sine \u00e9poxy catalytique elle-m\u00eame polym\u00e9rise en une structure de r\u00e9seau, la g\u00e9n\u00e9ration de liaisons \u00e9ther comme structure principale de l'homopolym\u00e8re.<\/p>\n<p>5. Le type d'agent de durcissement pour l'utilisation g\u00e9n\u00e9rale de l'agent de durcissement peut \u00eatre divis\u00e9 en deux cat\u00e9gories : la polym\u00e9risation par addition et la polym\u00e9risation catalytique. Le type de polym\u00e9risation par addition qui ouvre le cycle du groupe \u00e9poxy pour la r\u00e9action de polym\u00e9risation par addition, l'agent de durcissement lui-m\u00eame participe \u00e0 la structure du r\u00e9seau tridimensionnel. Ce type d'agent de durcissement, s'il est ajout\u00e9 en trop petite quantit\u00e9, le produit de durcissement est connect\u00e9 au groupe \u00e9poxy \u00e0 la fin de la r\u00e9action. Par cons\u00e9quent, pour ce type d'agent de durcissement, il existe une quantit\u00e9 appropri\u00e9e ; et l'agent de durcissement catalytique est un moyen cationique ou anionique de polym\u00e9risation par addition d'anneaux du groupe \u00e9poxy, l'agent de durcissement ne participe pas \u00e0 la structure du r\u00e9seau, de sorte qu'il n'y a pas de r\u00e9action \u00e9quivalente de la quantit\u00e9 appropri\u00e9e. Toutefois, l'augmentation du dosage acc\u00e9l\u00e8re la vitesse de polym\u00e9risation. Dans l'agent de durcissement de type apparent, le dicyandiamide, le dihydrazide d'acide adipique, de telles vari\u00e9t\u00e9s, \u00e0 temp\u00e9rature ambiante ne sont pas dissous dans la r\u00e9sine \u00e9poxyde, et \u00e0 des temp\u00e9ratures \u00e9lev\u00e9es apr\u00e8s dissolution, la r\u00e9action de durcissement a commenc\u00e9, et pr\u00e9sente donc \u00e9galement un \u00e9tat latent, de sorte qu'il peut \u00eatre appel\u00e9 un agent de durcissement latent fonctionnel.<\/p>\n<p>6, l'agent de durcissement latent fait r\u00e9f\u00e9rence \u00e0 la r\u00e9sine \u00e9poxy m\u00e9lang\u00e9e \u00e0 la stabilit\u00e9 \u00e0 relativement long terme \u00e0 temp\u00e9rature ambiante. Il faut g\u00e9n\u00e9ralement plus de trois mois pour obtenir une valeur pratique plus importante, l'id\u00e9al \u00e9tant une demi-ann\u00e9e ou plus d'un an. Il suffit d'exposer le produit \u00e0 la chaleur, \u00e0 la lumi\u00e8re, \u00e0 l'humidit\u00e9 et \u00e0 d'autres conditions pour qu'il commence \u00e0 durcir. Ce type d'agent de durcissement est essentiellement une m\u00e9thode physique et chimique pour fermer l'activit\u00e9 de l'agent de durcissement, ces vari\u00e9t\u00e9s sont appel\u00e9es agent de durcissement latent, en fait, peuvent \u00eatre appel\u00e9es agent de durcissement latent fonctionnel. Le dicyandiamide et la r\u00e9sine \u00e9poxy m\u00e9lang\u00e9s ensemble sont stables \u00e0 temp\u00e9rature ambiante. \u00c0 145-165 \u2103, la r\u00e9sine \u00e9poxy peut \u00eatre durcie en 30 minutes ; le complexe bore-triazide-\u00e9thylamine est \u00e9galement stable \u00e0 temp\u00e9rature ambiante, au-dessus de 100 \u2103, la r\u00e9sine \u00e9poxy peut \u00eatre durcie.<\/p>\n<p>L'agent de durcissement latent peut \u00eatre m\u00e9lang\u00e9 \u00e0 la r\u00e9sine \u00e9poxy pour former un compos\u00e9 de type liquide, ce qui simplifie l'application des produits \u00e0 base de r\u00e9sine \u00e9poxy. Son champ d'application s'\u00e9tend de l'adh\u00e9sif \u00e0 emballage unique aux rev\u00eatements, \u00e0 la peinture d'impr\u00e9gnation, aux compos\u00e9s d'enrobage, aux rev\u00eatements en poudre et \u00e0 d'autres aspects du d\u00e9veloppement.<\/p>\n<p><!-- lc-commercial-start --><\/p>\n<h2>Comment les acheteurs techniques \u00e9valuent g\u00e9n\u00e9ralement les probl\u00e8mes li\u00e9s \u00e0 l&#039;encre d&#039;imprimerie<\/h2>\n<p>Les probl\u00e8mes de performance des encres sont souvent li\u00e9s \u00e0 de multiples variables. Les \u00e9quipes sont g\u00e9n\u00e9ralement plus efficaces lorsqu&#039;elles abordent simultan\u00e9ment le transfert, l&#039;\u00e9coulement, le s\u00e9chage, le durcissement et l&#039;adh\u00e9rence au substrat, plut\u00f4t que de modifier une mati\u00e8re premi\u00e8re \u00e0 la fois sans cadre de d\u00e9cision clair.<\/p>\n<ul>\n<li><strong>D\u00e9finir le v\u00e9ritable goulot d&#039;\u00e9tranglement du processus\u00a0:<\/strong> Un transfert insuffisant, des probl\u00e8mes de s\u00e9chage, la formation d&#039;une pellicule et une instabilit\u00e9 de la couleur n\u00e9cessitent souvent diff\u00e9rentes solutions correctives.<\/li>\n<li><strong>V\u00e9rifier la viscosit\u00e9 pendant le processus d&#039;impression\u00a0:<\/strong> Une encre qui para\u00eet correcte dans son contenant peut se comporter tr\u00e8s diff\u00e9remment sur l&#039;imprimante.<\/li>\n<li><strong>V\u00e9rifier la compatibilit\u00e9 du substrat\u00a0:<\/strong> Le papier, le film, les surfaces m\u00e9tallis\u00e9es et les stratifi\u00e9s n\u00e9cessitent souvent des points d&#039;\u00e9quilibre diff\u00e9rents.<\/li>\n<li><strong>Utilisez les contr\u00f4les post-impression dans le cadre de la s\u00e9lection\u00a0:<\/strong> La r\u00e9sistance aux rayures, l&#039;adh\u00e9rence du ruban adh\u00e9sif, le comportement de la lamination et la stabilit\u00e9 au stockage sont g\u00e9n\u00e9ralement aussi importants que l&#039;aspect de l&#039;impression neuve.<\/li>\n<\/ul>\n<h3>R\u00e9f\u00e9rences de produits recommand\u00e9es<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiaf-094\/\">CHLUMIAF 094<\/a>:<\/strong> Un r\u00e9f\u00e9rence anti-mousse \u00e9quilibr\u00e9 pour les rev\u00eatements \u00e0 base d'eau et de nombreux \u00e9crans de contr\u00f4le de mousse g\u00e9n\u00e9raux.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiaf-3037\/\">CHLUMIAF 3037<\/a>:<\/strong> Une option de d\u00e9sa\u00e9ration de processus plus puissante lorsque la mousse persistante survit \u00e0 des conditions plus difficiles.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiwe-3280\/\">CHLUMIWE 3280<\/a>:<\/strong> Un agent mouillant de r\u00e9f\u00e9rence puissant pour les encres, les rev\u00eatements et le mouillage des substrats difficiles.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/fr\/product\/chlumiwe-3071-organic-silicone-surfactant-organosilicone-wetting-agent\/\">CHLUMIWE 3071<\/a>:<\/strong> Utile lorsqu'un support mouillant organosilicon\u00e9 est requis dans un \u00e9cran d'application large.<\/li>\n<\/ul>\n<h3>FAQ pour les acheteurs et les formulateurs<\/h3>\n<p><strong>Pourquoi de nombreux probl\u00e8mes d&#039;encre n\u00e9cessitent-ils plusieurs modifications de formulation\u00a0?<\/strong><br \/>\u00c9tant donn\u00e9 que l&#039;\u00e9coulement, le transfert, le s\u00e9chage, l&#039;adh\u00e9rence et l&#039;aspect interagissent, am\u00e9liorer l&#039;un d&#039;eux peut parfois en aggraver un autre si le syst\u00e8me dans son ensemble n&#039;est pas examin\u00e9.<\/p>\n<p><strong>La rh\u00e9ologie doit-elle \u00eatre jug\u00e9e uniquement par un indice de viscosit\u00e9 ?<\/strong><br \/>G\u00e9n\u00e9ralement non. L&#039;imprimabilit\u00e9 d\u00e9pend \u00e9galement du comportement au transfert, de la temp\u00e9rature, de l&#039;historique de cisaillement et du comportement de l&#039;encre sur la presse.<\/p>\n<p><!-- lc-commercial-end --><\/p>","protected":false},"excerpt":{"rendered":"<p>This article briefly summarizes the common types of epoxy resin curing agent and its curing mechanism. 1, alkaline class curing agent WTF. including aliphatic diamine and polyamine, aromatic polyamine, other<\/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-5376","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>Common types of epoxy resin curing agent and its curing mechanism - Longchang Chemical<\/title>\n<meta name=\"description\" content=\"This article briefly summarizes the common types of epoxy resin curing agent and its curing mechanism. 1, alkaline class curing agent WTF. including ali...\" \/>\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\/epoxy-resin-curing-agent-and-its-curing-mechanism\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Common types of epoxy resin curing agent and its curing mechanism - Longchang Chemical\" \/>\n<meta property=\"og:description\" content=\"This article briefly summarizes the common types of epoxy resin curing agent and its curing mechanism. 1, alkaline class curing agent WTF. including ali...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/longchangchemical.com\/fr\/epoxy-resin-curing-agent-and-its-curing-mechanism\/\" \/>\n<meta property=\"og:site_name\" content=\"Longchang Chemical\" \/>\n<meta property=\"article:published_time\" content=\"2022-07-14T01:12:43+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-28T10:42:04+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\/epoxy-resin-curing-agent-and-its-curing-mechanism\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/longchangchemical.com\/epoxy-resin-curing-agent-and-its-curing-mechanism\/\"},\"author\":{\"name\":\"Longchang Chemical\",\"@id\":\"https:\/\/longchangchemical.com\/#\/schema\/person\/ecb1ad846136c6f1ca534b62978c6a8e\"},\"headline\":\"Common types of epoxy resin curing agent and its curing mechanism\",\"datePublished\":\"2022-07-14T01:12:43+00:00\",\"dateModified\":\"2026-04-28T10:42:04+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/longchangchemical.com\/epoxy-resin-curing-agent-and-its-curing-mechanism\/\"},\"wordCount\":922,\"publisher\":{\"@id\":\"https:\/\/longchangchemical.com\/#organization\"},\"articleSection\":[\"Catalysts &amp; Chemical Auxiliary Agents\"],\"inLanguage\":\"fr-FR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/longchangchemical.com\/epoxy-resin-curing-agent-and-its-curing-mechanism\/\",\"url\":\"https:\/\/longchangchemical.com\/epoxy-resin-curing-agent-and-its-curing-mechanism\/\",\"name\":\"Common types of epoxy resin curing agent and its curing mechanism - 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