双马来酰亚胺/聚醚酰亚胺共混体系的增韧改性研究  

Compatibilization and toughening of bismaleimide/polyetherimide blend system

作　　者：凌辉[1] 宁荣昌[1] 刘刚[1] 齐大伟[1] 

机构地区：[1]西北工业大学理学院应用化学系,陕西西安710129

出　　处：《粘接》2009年第1期57-59,共3页Adhesion

摘　　要：研究了有机硅烷偶联剂对双马/聚醚酰亚胺共混体系的增容增韧作用。结果表明,加入有机硅烷偶联剂KH-550、KH-560、偶联剂B后,共混物断裂韧性(GIC)均有大幅度提高,其中偶联剂B增韧效果最佳;当B的添加量为2.5份时,体系的断裂韧性最大,达到1053J/m^2,为改性前的3.9倍,体系的微观形貌(SEM)由改性前的两相结构转变为双连续相结构。The compatibilization and toughening effect of organic silane coupling agents on bismaleimide/polyetherimide blend system was studied in this paper. The results showed that the blend fracture toughness （ GIC ） had a substantial increase when the organic silane coupling agents KH-550,KH-560 and B were added into the blends respectively, and the B showed the best toughening effect; when B content was 2.5 phr in blends, the fracture toughness was the highest, reaching to 1053 J/m^2 and 3.9 times of that for before modification;the morphology （SEM） of blends became double continuous phase structure from two-phase structure for before modification.

关 键 词：有机硅烷偶联剂 增容增韧 断裂韧性 双连续相 

分 类 号：TQ323.7[化学工程—合成树脂塑料工业]