纳米SiO_2对聚苯醚树脂/氰酸酯复合材料性能的影响  

Influences of nano-SiO_2 on property of PPO/BCE composites

作　　者：王倩倩[1] 颜红侠[1] 王艳丽[1] 唐玉生[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：《中国胶粘剂》2011年第3期12-15,共4页China Adhesives

基　　金：西安市科技计划项目(YF07005);西北工业大学基础研究基金项目(JC201047)

摘　　要：以聚苯醚树脂(PPO)改性BCE(双酚A型氰酸酯)作为复合材料的基体树脂,以硅烷偶联剂(KH-560)处理过的纳米二氧化硅(nano-SiO2)作为改性剂,制备出nano-SiO2/PPO/BCE复合材料。结果表明:适量的nano-SiO2既可同时提高PPO/BCE体系的韧性和强度,又可改善其介电性能和吸湿性能;当w(nano-SiO2)=3%时,nano-SiO2/PPO/BCE复合材料的冲击强度(19.6 kJ/m2)和弯曲强度(116.8 MPa)分别比纯PPO/BCE体系提高了33.3%和3.85%,其吸水率与纯PPO/BCE体系相当,介电常数高于纯PPO/BCE体系,但介电损耗因子低于纯PPO/BCE体系。With BCE（bisphenol A cyanate ester） modified by polyphenylene oxide resin（PPO） as matrix resin of composite,nano-SiO2 filler treated by sitane coupter（KH-560） as modifier,so a nano-SiO2/PPO/BCE composite was prepared. The results showed that the toughness and strength can be synchronously enhanced, and the dielectric property and moisture absorption can also be improved for PPO/BCE system when nano-SiO2 content was appropriate. The impact strength（19.6 kJ/m^2） or flexural strength（116.8 MPa） of nano-SiOJPPO/BCE composite were 33.3% or 3.85% more than those of pure PPO/BCE system,but the water absorptions between nano-SiOJPPO/BCE composite and pure PPO/BCE system were similar,and the dielectric constant of nano-SiOJPPO/BCE composite was more than that of pure PPO/BCE system,but the dielectric loss factor of nano-SiO2/PPO/BCE composite was less than that of pure PPO/BCE system when mass fraction of nano-SiO2 was 3%.

关 键 词：氰酸酯树脂 聚苯醚树脂 纳米SIO2 力学性能 介电性能 吸水率 

分 类 号：TQ326.9[化学工程—合成树脂塑料工业]