PMI泡沫芯材预聚反应温度场的数值模拟

玻璃钢/复合材料 ›› 2016, Vol. 0 ›› Issue (10): 20-25.

PMI泡沫芯材预聚反应温度场的数值模拟

薛鹏,李文晓^*,周景隆

同济大学航空航天与力学学院,上海200092

收稿日期:2016-05-09 出版日期:2016-11-25 发布日期:2016-11-25
通讯作者: 李文晓(1968-),女,副教授,研究生导师,主要研究方向为高分子及复合材料。
作者简介:薛鹏(1987-),男,硕士研究生,主要研究方向为高分子及复合材料。
基金资助:
国家科技支撑计划“高速磁浮交通工程化集成系统研究”(2013BAG19B01)

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

XUE Peng, LI Wen-xiao^*, ZHOU Jing-long

School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China

Received:2016-05-09 Online:2016-11-25 Published:2016-11-25

摘要/Abstract

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,研究了反应器环境温度和预聚体尺寸对聚合体系温度场的影响

关键词: PMI泡沫, 爆聚, 温度场, 模拟

Abstract: 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.

Key words: PMI foam, implosion, temperature field, simulation

中图分类号:

薛鹏,李文晓,周景隆. PMI泡沫芯材预聚反应温度场的数值模拟[J]. 玻璃钢/复合材料, 2016, 0(10): 20-25.

XUE Peng, LI Wen-xiao, ZHOU Jing-long. NUMERICAL SIMULATION ON TEMPERATURE FIELD FOR PREPOLYMERIZATION PROCESS OF PMI FOAM CORE MATERIAL[J]. Fiber Reinforced Plastics/Composites, 2016, 0(10): 20-25.

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