PMI泡沫芯材预聚反应温度场的数值模拟  

NUMERICAL SIMULATION ON TEMPERATURE FIELD FOR PREPOLYMERIZATION PROCESS OF PMI FOAM CORE MATERIAL

作　　者：薛鹏[1] 李文晓[1] 周景隆 XUE Peng LI Wen-xiao ZHOU Jing-long(School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, Chin)

机构地区：[1]同济大学航空航天与力学学院,上海200092

出　　处：《玻璃钢／复合材料》2016年第10期20-25,共6页Fiber Reinforced Plastics/Composites

基　　金：国家科技支撑计划"高速磁浮交通工程化集成系统研究"(2013BAG19B01)

摘　　要：采用二步法制备PMI泡沫时,若反应温度控制不当,会发生聚合体系的爆聚。测定了用甲基丙烯酸(MAA)和甲基丙烯腈(MAN)制备PMI预聚体时体系发生爆聚的临界温度以及反应过程中体系温度的变化趋势,并通过用ABAQUS软件模拟聚合反应过程中聚合体系内的温度场。Inappropriate temperature control may bring about implosion when polymethacrylimide（ PMI） foam is prepared by two-step method. In this paper,we measured the critical temperature of the implosion and the changing trend of the polymerization system temperature in the process of preparing PMI with methylacrylic acid（ MAA）and methacrylonitrile（ MAN）. Then the effects of ambient temperature and the size of the prepolymer on the temperature field of the polymerization system were studied by simulating the temperature distribution of the polymerization system in ABAQUS.

关 键 词：PMI泡沫 爆聚 温度场 模拟 

分 类 号：TB332[一般工业技术—材料科学与工程] TQ328.2[化学工程—合成树脂塑料工业]