BDPM/St/MA三元共聚物固化环氧树脂的研究  

Study on the epoxy resin cured with BDPM/ST/MA tercopolymer

作　　者：李延勋[1] 李聪聪[1] 陈垒[1] 吕和坤[1] 赵龙涛[1] LI Yan-xun LI Cong-cong CHEN Lei LV HE-kun ZHAO Long-tao(Materials and Chemical Engineering College, Henan Institute of Engineering, Zhengzhou 450007, Chin)

机构地区：[1]河南工程学院材料与化学工程学院,河南郑州450007

出　　处：《热固性树脂》2017年第2期17-19,31,共4页Thermosetting Resin

基　　金：国家自然科学基金青年基金项目(51403053);河南省教育厅科学技术研究重点项目(14B530005);河南工程学院博士基金项目(D2014018)资助

摘　　要：采用N-[(4-溴-3,5-二氟)苯基]马来酰亚胺/苯乙烯/马来酸酐(BDPM/St/MA)三元共聚物作为固化剂固化E-44环氧树脂,通过示差扫描量热法(DSC)对该体系的固化行为及非等温固化动力学进行了研究。通过Kissinger法计算得到的表观活化能为40.15 k J/mol,指前因子为1.19×10~4;通过Ozawa法计算得到的表观活化能为45.23 k J/mol。对固化后的环氧树脂E-44的热分析表明,BDPM/St/MA固化材料的初始分解温度,20%热失重温度和550℃时的残余质量分别比甲基四氢苯酐固化体系高32.1℃,17.2℃和13.5%。BDPM/St/MA三元共聚物能够较好地改善环氧树脂的热稳定性。The E-44 epoxy resin was cured using BDPM/St/MA tercopolymer as the curing agent. The curing behavior and kinetics of the system were investigated by differential scanning calorimetry （DSC）. The apparent activation energy calculated with the Kissinger method was 40.15 kJ/mol, and the pre-exponential factor was 1.19×10^4, while the apparent activation energy calculated with the Ozawa method was 45.23 kJ/mol. The thermogravimetric analysis showed that the initial thermal decomposition temperature, 20% weight loss temperature and residual mass at 550℃ were increased by 32.1 ℃, 17.2 ℃ and 13.5%, respectively than thosed of methyl tetrahydrophthalic anhydride cured system. The thermal stability of epoxy resin eould be better improved by the BDPM/St/MA tereopolymer.

关 键 词：N-[(4-溴-3 5-二氟)苯基]马来酰亚胺 环氧树脂 固化动力学 热稳定性 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]