PPO/EP混合物耐热性和相分离的研究  

Heat Resistance and Phase Separation of PPO/EP

作　　者：田勇[1] 皮丕辉[1] 文秀芳[1] 程江[1] 杨卓如[1] 

机构地区：[1]华南理工大学化工与能源学院,广州510640

出　　处：《现代塑料加工应用》2006年第1期9-11,共3页Modern Plastics Processing and Applications

基　　金：广东省自然科学基金项目资助(编号 05006556)

摘　　要：利用差示扫描量热仪研究了聚苯醚/环氧树脂(PPO/EP)混合物的耐热性。结果表明,随着PPO含量的增加其耐热性提高,在PPO/EP混合物中加入苯乙烯-马来酸酐共聚物可有效地提高混合物的耐热性。用扫描电镜观察了PPO/EP 混合物的相分离过程。结果表明,PPO和EP混合物的相分离是通过旋节线分离发生的,且PPO和EP之间缺乏明显的交联。The heat resistance of polyphenylene oxide/epoxy resin（PPO/EP） mixture was studied by differential scanning calorimeter. The results indicate that the heat resistance of the PPO/EP mixture is increased with increasing PPO contents, and the heat resistance of PPO/EP mixture with adding styrene-maleic anhydride copolymer （SMA） can be improved. The phase separation processing of the PPO/EP mixture was studied by scanning electron microscope（SEM）. SEM observations show that the phase separation takes place via spinodal decomposition, and PPO and EP are lack of significant cross-link.

关 键 词：聚苯醚 环氧树脂 相态 耐热性 介电性能 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]