应用化学 ›› 1997, Vol. 0 ›› Issue (1): 92-94.

• 研究论文 • 上一篇    下一篇

丁腈羟增韧环氧树脂固化反应

李绍英, 韩孝族, 刘振海, 张庆余   

  1. 中国科学院长春应用化学研究所 长春 130022
  • 收稿日期:1996-05-04 修回日期:1996-09-17 出版日期:1997-02-10 发布日期:1997-02-10

Curing Reaction of Toughened Epoxy Resin by Hydroxyl terminated Butadiene-crylonitrile Copolymer

Li Shaoying, Han Xiaozu, Liu Zhenhai, Zhang Qingyu   

  1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022
  • Received:1996-05-04 Revised:1996-09-17 Published:1997-02-10 Online:1997-02-10

摘要: 环氧树脂存在着韧性差的缺点,可以加入液体橡胶增加韧性. 最常用的液体橡胶是端羧基丁腈[1],但它价格太高,使用受到限制. 为了降低成本,人们转而使用比较便宜的端羟基丁二烯-丙烯腈共聚物(丁腈羟)增韧环氧树脂[2]. 一个方法是将丁腈羟与丁二酸酐反应,把羟基转化成羧基成为丁羧[3]. 更为简单的方法是将丁腈羟加入到酸酐固化的环氧树脂中,酸酐既可与丁腈羟反应,又可与环氧树脂反应,能够使丁腈橡胶链段连到环氧树脂上,起到增韧作用[4]

关键词: 丁腈羟, 增韧环氧树脂, 固化反应动力学, DSC

Abstract: The exothermic behavior of curing reaction of epoxy resin toughened by hydroxyl-terminated butadiene acrylonitrile was studied by DSCmethod. The kinetic parameters of curing reaction and then the relationship between conversion, time and temperature of reaction were obtained.

Key words: hydroxyl-erminated butadiene-acrylonitrile copolymer, toughened epoxy resin, kinetics of curing reaction, DSC