{"id":5376,"date":"2022-07-14T01:12:43","date_gmt":"2022-07-14T01:12:43","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=5376"},"modified":"2022-07-14T01:12:43","modified_gmt":"2022-07-14T01:12:43","slug":"epoxy-resin-curing-agent-and-its-curing-mechanism","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/id\/epoxy-resin-curing-agent-and-its-curing-mechanism\/","title":{"rendered":"Jenis bahan pengawet resin epoksi yang umum dan mekanisme pengawetannya"},"content":{"rendered":"<h1><strong>Jenis bahan pengawet resin epoksi yang umum dan mekanisme pengawetannya<\/strong><\/h1>\n<p>Artikel ini secara singkat meringkas jenis-jenis umum dari bahan pengawet resin epoksi dan mekanisme pengawetan.<\/p>\n<p>1, bahan pengawet kelas alkali WTF. termasuk diamina alifatik dan poliamina, poliamina aromatik, senyawa nitrogen lainnya, dan amina alifatik yang dimodifikasi. Efek pengawetan amina primer dan sekunder pada resin epoksi adalah membuka gugus epoksi oleh hidrogen aktif pada atom nitrogen, dan membuatnya menjadi pengawetan ikatan silang. Poliamin alifatik seperti etilenadiamina, heksanadiamina, dietilenatriamina, trietilenatriamina, dietilaminopropilamina, dll. Lebih aktif dan dapat membuat resin epoksi terikat silang dan disembuhkan pada suhu kamar; sedangkan poliamin aromatik kurang aktif, seperti m-fenilendiamin, yang dapat disembuhkan pada suhu 150 \u2103.<\/p>\n<p>2 \u3001 Bahan pengawet jenis asam. Termasuk asam organik, asam anhidrida, dan boron trifluorida dan kompleksnya. Asam dibasa dan anhidridanya seperti anhidrida maleat, anhidrida ftalat dapat menyembuhkan resin epoksi, tetapi harus dipanggang pada suhu yang lebih tinggi agar dapat sembuh sepenuhnya. Anhidrida pertama-tama bereaksi dengan gugus hidroksil dalam resin epoksi untuk menghasilkan monoester, dan gugus karboksil dalam monoester dan gugus epoksi mengalami adisi dan esterifikasi untuk membuat ester ganda.<\/p>\n<p>3 \u3001 Bahan pengawet cetakan aditif. Jenis bahan pengawet dan reaksi penambahan epoksi ini merupakan bagian dari segmen rantai produk pengawetan, dan melalui reaksi polimerisasi bertahap sehingga molekul linier terhubung silang ke dalam molekul struktur tubuh, jenis bahan pengawet ini juga dikenal sebagai bahan pengawet jenis melon.<\/p>\n<p>4 \u3001 Bahan pengawet katalitik. Jenis bahan pengawet ini hanya pada inisiasi resin epoksi, membuka gugus epoksi, resin epoksi katalitik itu sendiri berpolimerisasi menjadi struktur jaringan, pembentukan ikatan eter sebagai struktur utama homopolimer.<\/p>\n<p>5, terlihat jelas pada jenis bahan pengawet untuk penggunaan umum bahan pengawet, dapat dibagi menjadi polimerisasi adisi dan tipe katalitik. Jenis polimerisasi adisi yang membuka cincin gugus epoksi untuk reaksi polimerisasi adisi, bahan pengawet itu sendiri berpartisipasi dalam struktur jaringan tiga dimensi. Jenis bahan pengawet ini, seperti menambahkan terlalu sedikit, produk pengawet yang terhubung ke gugus epoksi di akhir reaksi. Oleh karena itu, untuk jenis bahan pengawet ini, ada jumlah yang sesuai; dan bahan pengawet katalitik adalah cara kationik, atau cara anionik untuk membuat polimerisasi adisi cincin gugus epoksi, bahan pengawet tidak ikut serta dalam struktur jaring, sehingga tidak ada reaksi yang setara dengan jumlah yang sesuai. Namun, meningkatkan dosis akan membuat kecepatan pengeringan lebih cepat. Pada bahan pengawet jenis yang tampak, dicyandiamide, asam adipat dihidrazida varietas seperti itu, pada suhu kamar tidak larut dalam resin epoksi, dan pada suhu tinggi setelah pembubaran mulai bereaksi, dan oleh karena itu juga menghadirkan keadaan laten, sehingga dapat disebut sebagai bahan pengawet laten fungsional.<\/p>\n<p>6, bahan pengawet laten mengacu pada resin epoksi yang dicampur dengan stabilitas yang relatif jangka panjang pada kondisi suhu kamar. Umumnya membutuhkan lebih dari 3 bulan untuk memiliki nilai praktis yang lebih besar, yang ideal membutuhkan waktu setengah tahun atau lebih dari 1 tahun. Dan hanya perlu terkena panas, cahaya, kelembaban dan kondisi lainnya, ia mulai menyembuhkan reaksi. Jenis bahan pengawet ini pada dasarnya adalah metode fisik dan kimia untuk menutup aktivitas bahan pengawet, varietas ini disebut bahan pengawet laten, pada kenyataannya, dapat disebut bahan pengawet laten fungsional. Seperti dicyandiamide dan resin epoksi yang dicampur bersama, pada suhu kamar stabil. Jika pada suhu 145-165 \u2103, resin epoksi dapat disembuhkan dalam 30 menit; kompleks boron triazida etilamina juga stabil pada suhu kamar, di atas 100 \u2103 ketika resin epoksi dapat disembuhkan.<\/p>\n<p>Bahan pengawet laten dapat dicampur dengan resin epoksi untuk membuat senyawa jenis cair, menyederhanakan aplikasi produk resin epoksi, aplikasinya berkisar dari perekat paket tunggal hingga pelapis, cat impregnasi, senyawa pot, pelapis bubuk, dan aspek pengembangan lainnya.<\/p>","protected":false},"excerpt":{"rendered":"<p>Jenis umum bahan pengawet resin epoksi dan mekanisme pengawetannya Artikel ini merangkum secara singkat jenis umum bahan pengawet resin epoksi dan mekanisme pengawetannya. 1, bahan pengawet kelas alkali WTF. termasuk diamina alifatik dan poliamina, poliamina aromatik, senyawa nitrogen lainnya dan amina alifatik yang dimodifikasi. Efek pengawetan amina primer dan sekunder [...]<\/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=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/longchangchemical.com\/id\/epoxy-resin-curing-agent-and-its-curing-mechanism\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\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=\"Common types of epoxy resin curing agent and its curing mechanism 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 nitrogenous compounds and modified aliphatic amine. The curing effect of primary and secondary amines [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/longchangchemical.com\/id\/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=\"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\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/longchangchemical.com\/epoxy-resin-curing-agent-and-its-curing-mechanism\/\"},\"wordCount\":648,\"publisher\":{\"@id\":\"https:\/\/longchangchemical.com\/#organization\"},\"articleSection\":[\"Catalysts &amp; 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