新型脂环环氧树脂/胺体系固化动力学及性能研究  

Curing dynamics and performance studies of new alicyclic epoxy/amine system

作　　者：郭洪涛[1] 程珏[1,2] 林欣[2] 张军营[1,2] 

机构地区：[1]北京化工大学碳纤维及功能高分子教育部重点实验室,北京100029 [2]北京化工大学常州先进材料研究院,江苏常州213164

出　　处：《热固性树脂》2013年第1期1-5,共5页Thermosetting Resin

基　　金：国产碳纤维液体成型关键技术研究(2012AA03A205);国家自然科学基金(201176017)资助

摘　　要：采用DSC研究了脂环环氧树脂稀释剂1,4-环己烷二甲醇二缩水甘油醚(CHDMDGE)与异佛尔酮二胺及聚醚胺D230的固化行为,得出其固化反应的活化能、指前因子和反应级数等动力学参数。通过外推法计算出了固化工艺的特征温度,以此为依据制定了固化工艺并对固化后体系的力学性能进行了测试。结果表明,与线形脂肪族环氧稀释剂1,4-丁二醇二缩水甘油醚和1,6-己二醇二缩水甘油醚相比,CHDMDGE的拉伸强度分别提高了0.4倍和2.7倍,断裂伸长率则提高了1.9倍和5.0倍。The curing behaviors of alicyclic epoxy resin diluent 1,4-cyclohexane dimethanol-glycidyl（CHDMDGE） with isophorone diamine and polyether amine D230 were investigated by DSC.The kinetic parameters such as activation energy of curing reaction,pre-exponential factor and reaction order were obtained.The characteristic temperature of the curing process was calculated by extrapolation and as a basis for developping the curing process.The mechanical properties of the cured systems were tested.The results showed that the tensile strength of CHDMDGE cured system was increased by 0.4 times and 2.7 times compared with the linear aliphatic epoxy diluent 1,4-butanediol diglycidyl ether and 1,6-hexanediol diglycidyl ether and the breaking elongation was increased by 1.9 times and 5.0 times,respectively.

关 键 词：脂环环氧树脂 稀释剂 异佛尔酮二胺 聚醚胺 固化动力学 拉伸强度 断裂伸长率 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]