{"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\/tr\/epoxy-resin-curing-agent-and-its-curing-mechanism\/","title":{"rendered":"Yayg\u0131n epoksi re\u00e7ine k\u00fcrleme maddesi t\u00fcrleri ve k\u00fcrleme mekanizmas\u0131"},"content":{"rendered":"

Yayg\u0131n epoksi re\u00e7ine k\u00fcrleme maddesi t\u00fcrleri ve k\u00fcrleme mekanizmas\u0131<\/strong><\/h1>\n

Bu makale, yayg\u0131n epoksi re\u00e7ine k\u00fcrleme maddesi t\u00fcrlerini ve k\u00fcrleme mekanizmas\u0131n\u0131 k\u0131saca \u00f6zetlemektedir.<\/p>\n

1, alkalin s\u0131n\u0131f\u0131 k\u00fcrleme maddesi WTF. alifatik diamin ve poliamin, aromatik poliamin, di\u011fer azotlu bile\u015fikler ve modifiye alifatik amin dahil. Birincil ve ikincil aminlerin epoksi re\u00e7ine \u00fczerindeki k\u00fcrleme etkisi, epoksi grubunu nitrojen atomu \u00fczerindeki aktif hidrojen taraf\u0131ndan a\u00e7mak ve \u00e7apraz ba\u011fl\u0131 k\u00fcrleme yapmakt\u0131r. Etilendiamin, hekzandiamin, dietilentriamin, trietilentetetramin, dietilaminopropilamin vb. gibi alifatik poliaminler daha aktiftir ve epoksi re\u00e7ineyi oda s\u0131cakl\u0131\u011f\u0131nda \u00e7apraz ba\u011fl\u0131 ve k\u00fcrlenmi\u015f hale getirebilir; 150 \u00b0 C'de k\u00fcrlenebilen m-fenilendiamin gibi aromatik poliaminler ise daha az aktiftir.<\/p>\n

2\u3001Asitik tip k\u00fcrleme maddesi. Organik asitler, asit anhidrit ve bor triflor\u00fcr ve kompleksleri dahil. Dibazik asit ve maleik anhidrit, ftalik anhidrit gibi anhidritleri epoksi re\u00e7ineyi k\u00fcrleyebilir, ancak tamamen k\u00fcrlenmesi i\u00e7in daha y\u00fcksek bir s\u0131cakl\u0131kta pi\u015firilmesi gerekir. Anhidrit ilk olarak epoksi re\u00e7inedeki hidroksil grubu ile reaksiyona girerek monoester olu\u015fturur ve monoesterdeki karboksil grubu ve epoksi grubu, \u00e7ift ester yapmak i\u00e7in ekleme ve esterle\u015fmeye u\u011frar.<\/p>\n

3\u3001Katk\u0131 kal\u0131plama k\u00fcrleme maddesi. Bu tip k\u00fcrleme maddesi ve epoksi ekleme reaksiyonu, k\u00fcrleme \u00fcr\u00fcn\u00fc zincir segmentinin bir par\u00e7as\u0131n\u0131 olu\u015fturur ve kademeli polimerizasyon reaksiyonu yoluyla do\u011frusal molek\u00fcller g\u00f6vde yap\u0131s\u0131 molek\u00fcllerine \u00e7apraz ba\u011flan\u0131r, bu tip k\u00fcrleme maddesi kavun tipi k\u00fcrleme maddesi olarak da bilinir.<\/p>\n

4\u3001Katalitik k\u00fcrleme maddesi. Bu tip k\u00fcrleme ajan\u0131 sadece epoksi re\u00e7ine ba\u015flang\u0131c\u0131nda, epoksi grubunu a\u00e7ar, katalitik epoksi re\u00e7inenin kendisi bir a\u011f yap\u0131s\u0131na polimerize olur, homopolimerin ana yap\u0131s\u0131 olarak eter ba\u011flar\u0131n\u0131n olu\u015fumu.<\/p>\n

5, k\u00fcrleme maddesinin genel kullan\u0131m\u0131 i\u00e7in k\u00fcrleme maddesi tipinde belirgin, ilave polimerizasyon ve katalitik tip olarak ayr\u0131labilir. \u0130lave polimerizasyon reaksiyonu i\u00e7in epoksi grubunun halkas\u0131n\u0131 a\u00e7an ilave polimerizasyon tipi, \u00fc\u00e7 boyutlu a\u011f yap\u0131s\u0131na kat\u0131lmak i\u00e7in k\u00fcrleme maddesinin kendisidir. Bu tip k\u00fcrleme maddesi, \u00f6rne\u011fin \u00e7ok az eklendi\u011finde, k\u00fcrleme \u00fcr\u00fcn\u00fc reaksiyonun sonunda epoksi grubuna ba\u011flan\u0131r. Bu nedenle, bu t\u00fcr k\u00fcrleme ajan\u0131 i\u00e7in uygun bir miktar vard\u0131r; ve katalitik k\u00fcrleme ajan\u0131, epoksi grubu halka ekleme polimerizasyonu yapmak i\u00e7in katyonik bir yol veya anyonik bir yoldur, k\u00fcrleme ajan\u0131 a\u011f yap\u0131s\u0131na kat\u0131lmaz, bu nedenle uygun miktarda e\u015fde\u011fer bir reaksiyon yoktur. Bununla birlikte, dozaj\u0131n artt\u0131r\u0131lmas\u0131 k\u00fcrlenme h\u0131z\u0131n\u0131 daha h\u0131zl\u0131 hale getirecektir. G\u00f6r\u00fcn\u00fcr tip k\u00fcrleme ajan\u0131, disiyandiamid, adipik asit dihidrazid gibi \u00e7e\u015fitlerde, oda s\u0131cakl\u0131\u011f\u0131nda epoksi re\u00e7inesinde \u00e7\u00f6z\u00fcnmez ve \u00e7\u00f6z\u00fcnmeden sonra y\u00fcksek s\u0131cakl\u0131klarda reaksiyonu iyile\u015ftirmeye ba\u015flar ve bu nedenle de gizli bir durum sunar, bu nedenle fonksiyonel bir gizli k\u00fcrleme ajan\u0131 olarak adland\u0131r\u0131labilir.<\/p>\n

6, gizli k\u00fcrleme maddesi, oda s\u0131cakl\u0131\u011f\u0131 ko\u015fullar\u0131nda nispeten uzun s\u00fcreli stabilite ile kar\u0131\u015ft\u0131r\u0131lm\u0131\u015f epoksi re\u00e7ineyi ifade eder. Genellikle daha fazla pratik de\u011fere sahip olmak i\u00e7in 3 aydan fazla s\u00fcre gerekir, ideal olan yar\u0131m y\u0131l veya 1 y\u0131ldan fazla s\u00fcre gerektirir. Ve sadece \u0131s\u0131, \u0131\u015f\u0131k, nem ve di\u011fer ko\u015fullara maruz b\u0131rak\u0131lmas\u0131 gerekir, reaksiyonu iyile\u015ftirmeye ba\u015flar. Bu tip k\u00fcrleme maddesi temel olarak k\u00fcrleme maddesi aktivitesini kapatmak i\u00e7in fiziksel ve kimyasal bir y\u00f6ntemdir, bu \u00e7e\u015fitlere gizli k\u00fcrleme maddesi denir, asl\u0131nda fonksiyonel gizli k\u00fcrleme maddesi olarak adland\u0131r\u0131labilir. Disiyandiamid ve epoksi re\u00e7inenin birlikte kar\u0131\u015ft\u0131r\u0131lmas\u0131 gibi, oda s\u0131cakl\u0131\u011f\u0131nda stabildir. 145-165 \u2103'de ise epoksi re\u00e7ine 30 dakika i\u00e7inde k\u00fcrlenebilir; bor triazid etilamin kompleksi de oda s\u0131cakl\u0131\u011f\u0131nda stabildir, epoksi re\u00e7ine k\u00fcrlenebildi\u011finde 100 \u2103'nin \u00fczerindedir.<\/p>\n

Gizli k\u00fcrleme maddesi, s\u0131v\u0131 tip bir bile\u015fik yapmak i\u00e7in epoksi re\u00e7ine ile kar\u0131\u015ft\u0131r\u0131labilir, epoksi re\u00e7ine \u00fcr\u00fcnlerinin uygulanmas\u0131n\u0131 basitle\u015ftirir, uygulama aral\u0131\u011f\u0131 tek bir paket yap\u0131\u015ft\u0131r\u0131c\u0131dan kaplamalara, emprenye boyas\u0131na, saks\u0131 bile\u015fiklerine, toz kaplamalara ve di\u011fer geli\u015ftirme y\u00f6nlerine kadar uzan\u0131r.<\/p>","protected":false},"excerpt":{"rendered":"

Yayg\u0131n epoksi re\u00e7ine k\u00fcrleme maddesi t\u00fcrleri ve k\u00fcrleme mekanizmas\u0131 Bu makale, yayg\u0131n epoksi re\u00e7ine k\u00fcrleme maddesi t\u00fcrlerini ve k\u00fcrleme mekanizmas\u0131n\u0131 k\u0131saca \u00f6zetlemektedir. 1, alkalin s\u0131n\u0131f\u0131 k\u00fcrleme maddesi WTF. alifatik diamin ve poliamin, aromatik poliamin, di\u011fer azotlu bile\u015fikler ve modifiye alifatik amin dahil. Birincil ve ikincil aminlerin k\u00fcrleme etkisi [...]<\/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":"\nCommon 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\/tr\/epoxy-resin-curing-agent-and-its-curing-mechanism\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\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. 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