取代脲促进环氧树脂/双氰胺固化体系反应机理

被引：15

作者：

张保龙

石可瑜

由英才

周德亮

杜宗杰

黄吉甫

机构：

[1] 南开大学化学系，吸附分离功能高分子材料国家重点实验室!天津

来源：

应用化学 | 1998年 / 04期

关键词：

取代脲; 环氧树脂; 双氰胺; 固化反应;

D O I：

暂无

中图分类号：

O633 [杂链聚合物];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The reaction mechanism, reactivities, and apparent activation energies of epoxy/dicyanamide curing system accelerated by C6H5NHCONR2 (R=CH3, n-C4H9, i-C3H7,) werestudied by DSC and GC techniques. The results showed that in reaction of C6H5,NHCONR2with either dicyanamide or epoxy resin there was a dimethylamine released reacting with epoxy resin, giving a tertiary amine, which accelerated the anionic homopolymerization of epoxy resin.

引用

页码：95 / 97

页数：3