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取代脲促进环氧树脂/双氰胺固化体系反应机理

Study on the Reaction Mechanism of Epoxy Resin/Dicyanamide System

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【作者】 张保龙; 石可瑜; 由英才; 周德亮; 杜宗杰; 黄吉甫;

【Author】 Zhang Baolong; Shi Keyu; You Yingcai; Zhou Deliang; Du Zongjie; Huang Jifu(Department of Chemistry,The State Key Laboratory of Functional Polymer Materials for Adsorption and Separation,Nankai University,Tianjin 300071)

【机构】 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; 300071; 30;

【Abstract】 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.

【关键词】 取代脲; 环氧树脂; 双氰胺; 固化反应;
【Key words】 substituted urea; epoxy resin; dicyandiamide; curing reaction;
  • 【文献出处】 应用化学 ,CHINESE JOURNAL OF APPLIED CHEMISTRY , 编辑部邮箱 ,1998年04期
  • 【分类号】O633
  • 【被引频次】22
  • 【下载频次】316
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