丙烯腈含量对CTBN改性环氧树脂性能的影响  

Effects of Acrylonitrile Content on Properties of the Liquid Carboxyl-terminated Butadiene-acrylonitrile(CTBN) Modified Epoxy Resin

作　　者：郦亚铭[1] 黄志雄[1] 石敏先[1] 

机构地区：[1]武汉理工大学材料科学与工程学院,武汉430070

出　　处：《武汉理工大学学报》2008年第3期14-17,共4页Journal of Wuhan University of Technology

摘　　要：采用化学改性的方法,制备了液体端羧基丁腈橡胶(CTBN)改性的环氧树脂。用FTIR分析了CTBN改性环氧树脂的结构并通过环氧值的测定确定了化学改性的条件;比较不同CTBN改性环氧树脂的力学性能和粘度,表明CTBN-10改性环氧树脂的粘度比CTBN-25的要低;SEM分析表明在化学改性后的环氧树脂中,CTBN与环氧树脂发生了相分离,形成了以CTBN孔洞为分散相,以环氧树脂为连续相的多相形态结构,CTBN-25为20%时引发的银纹和剪切带达到最大值,此时增韧效果最好。With the chemical modification,the liquid carboxyl-terminated butadiene-acrylonitrile(CTBN) modified epoxy resin was prepared.The CTBN modified epoxy resin s structure with FTIR and determined the chemical modified condition through the epoxy value determination was analyzed.Compared with the mechanics performance and the viscosity of the different CTBN modified epoxy resin,CTBN-10 modified epoxy resin was indicated that it had better effect compared to CTBN25 modified epoxy resin.The ratio of viscosities o...

关 键 词：液体端羧基丁腈橡胶 环氧树脂 丙烯腈含量 力学性能 SEM 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]