催化剂对环氧树脂/酚类固化剂体系反应性的影响  

Influence of catalyst on the reactivity of epoxy resin/phenolic curing agent system

作　　者：石伟[1,2] 郑亚萍[1] 于培盈[1] 王翠丽[1] 张娇霞[1] 李建英[2] 

机构地区：[1]西北工业大学理学院应用化学系,陕西西安710072 [2]西安交通大学电力设备电器绝缘国家重点实验室,陕西西安710049

出　　处：《热固性树脂》2009年第3期17-20,24,共5页Thermosetting Resin

基　　金：西安交通大学电力设备电器绝缘国家重点实验室2007年开放基金资助项目(200706)

摘　　要：采用三氟甲磺酸铒和三氟甲磺酸镱作为环氧树脂/酚类固化剂的催化剂,筛选了固化剂的最佳用量,采用胶化时间研究了催化剂的催化活性,并采用差热分析法对环氧树脂/酚类固化剂/三氟甲磺酸铒动力学参数进行了研究。结果表明,酚类固化剂的最佳质量分数为9%(以环氧树脂计),三氟甲磺酸铒的催化活性最强,环氧树脂/酚类固化剂/三氟甲磺酸铒体系的活化能为79.53 kJ/mol,反应级数为0.95。The ytterbium and erbium trifluoromethanesulfonates were used as catalysts for epoxy rein/phenolic curing agent system. The optimum amount of curing agent was selected. The catalytic activity was studied by gel time and the kinetic parameters of epoxy/phenolic curing agent/erbiam trifluoromethanesulfonate were investigated by DSC. The result showed that the best mass fraction of curing agent was 9 % （ based on epoxy resin） . The catalytic activity of erbiam trifluoromethanesulfonate was highest. The apparent activation energy of epoxy/phenolic curing agent/erbiam trifluoromethanesulfonate was 79.53 kJ/mol and the reaction order was 0. 95.

关 键 词：环氧粉末涂料 酚类固化剂 催化剂 反应性 动力学参数 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]