苯并噁嗪/环氧树脂/咪唑三元体系的固化动力学及固化工艺研究  

Curing Kinetics and Process of a Ternary Blend of Benzoxazine/Epoxy Resin/Imidazole

作　　者：张华川[1] 冉起超[1] 顾宜[1] 

机构地区：[1]高分子材料工程国家重点实验室,四川大学高分子科学与工程学院,四川成都610065

出　　处：《四川大学学报（工程科学版）》2011年第5期228-233,共6页Journal of Sichuan University (Engineering Science Edition)

基　　金：国家自然科学基金资助项目(50873062)

摘　　要：使用二苯甲烷二胺型苯并噁嗪(B)、环氧树脂F-51、咪唑制备了一种三元共混树脂体系(BFM),采用非等温DSC测试方法,基于Kissinger,Ozawa,Friedman,Flynn-Wall-Ozawa等理论模型对BFM的固化动力学进行了分析研究。结果表明,体系中主要存在两种反应,计算得到两者的表观活化能分别为85.05、37.3 kJ/mol,反应级数分别为0.8、1.6。以此得出了相应的动力学方程。此外,基于得到的动力学参数,结合体系固化反应特点,提出了一种预测固化时间的方法,从而确定了固化工艺。A ternary blend resin（BFM） was prepared by diaminodiphenylmethane-based-benzoxazine（B）,epoxy F-51 and imidazole.The curing kinetics of BFM resin was investigated by non-isothermal differential scanning calorimetry（DSC） according to Kissinger,Ozawa,Friedman and Flynn-Wall-Ozawa methods.There were two strong exothermal peaks in the DSC thermograms of BFM resin,which were corresponding to two kinds of curing reactions with the apparent activation energy of 85.05 kJ/mol and 137.3 kJ/mol,respectively.The reaction orders of the two kinds of reaction were 0.8 and 1.6,respectively.Furthermore,the curing process of BFM resin was established from a method proposed to determine the curing time,based on its curing reaction and kinetic parameters.

关 键 词：苯并噁嗪 环氧 咪唑 固化动力学 固化工艺 

分 类 号：TQ323.1[化学工程—合成树脂塑料工业]