Curing Reaction Kinetics of Epoxy Resin Using Dicyandiamide Modified by Aromatic Amines

被引：6
|
作者：
CHEN Lianxi1
2. School of Materials Science and Engineering
机构：
来源：
Wuhan University Journal of Natural Sciences | 2007年 / 06期
基金：
国家高技术研究发展计划(863计划);
关键词：
modified dicyandiamide; aromatic amine; epoxy resin; kinetics;
D O I：
暂无
中图分类号：
O621.2 [有机化合物性质];
学科分类号：
070303 ; 081704 ;
摘要：
The curing reaction and reaction mechanism of epoxy resin E-44, for which aromatic amine modified dicyandiamide was used as a curing reagent, were investigated by means of differen-tial scanning calorimetry (DSC). The results showed that the modified dicyandiamide had better curing characteristic than un-modified dicyandiamide for epoxy resin E-44, and the curing reac-tion could be carried out at moderate temperature. Apparent acti-vation energy of the curing reaction was decreased appreciably from 123.829 kJ/mol to 61.550-64.405 kJ/mol, and reaction order was decreased from 0.941 to 0.896-0.900. Curing reaction mecha-nism also was discussed.
引用
收藏
页码：1105 / 1108
页数：4
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