固化条件对改性CE体系的固化和性能的影响  

Effects of Curing Conditions on Cure and Properties of Modified CE System

作　　者：陈强[1] 胡柏星[1] 吴石山[1] 沈健[1,2] 

机构地区：[1]南京大学化学化工学院,江苏南京210093 [2]南京师范大学化学和环境学院,江苏南京210097

出　　处：《高分子材料科学与工程》2011年第7期62-65,共4页Polymer Materials Science & Engineering

摘　　要：研究了不同固化条件对氰酸酯树脂(CE)/环氧树脂(EP)(60/40)体系和CE/EP/丁腈橡胶(A)(71/4/25)体系的固化反应以及CE/EP(60/40)和CE/EP/A(71/4/25)膜性能的影响。CE/EP和CE/EP/A体系固化程度随加热时间延长和温度升高而提高。CE/EP膜柔韧性差。随着加热温度升高,CE/EP/A膜耐热性提高;110℃、130℃和150℃分别加热2 h的膜热分解温度为367.3℃。所制备的CE/EP/A膜冲击强度和柔韧性为50 kg.cm和15 mm。随着加热温度升高,CE/EP/A膜的拉伸强度和杨氏模量提高,断裂伸长率下降。The effects of different curing conditions on curing reaction of cyanate ester resins（CE）/epoxy resin（EP）（60/40） system and CE/EP/chemigum（A）（71/4/25） system,as well as the properties of the corresponding films were investigated.The curing degree increases with increasing heating time and temperature in both CE/EP and CE/EP/A system.The CE/EP film has poor flexility.The thermal stability of CE/EP/A film was increased with increasing heating temperature under the same heating time;the temperature of thermal decomposition was 367.3 ℃ for the film heated for 2 h at 110 ℃,130 ℃ and 150 ℃,respectively.The impact strength and flexility of CE/EP/A film prepared in this paper are 50 kg·cm and 15 mm.With increasing the heating temperature,the tensile strength and Young＇s modulus of CE/EP/A film enhance,while its elongation at break decreased.

关 键 词：氰酸酯树脂/环氧树脂/丁腈橡胶体系 固化条件 固化程度 性能 

分 类 号：TQ323.4[化学工程—合成树脂塑料工业]