EP/POSS/SiO_2纳米复合材料性能研究  

Research of EP/POSS/SiO_2 Nanocomposite Materials's Properties

作　　者：辛存良[1] 马晓燕[1] 宋春莹[1] 侯宪冰[1] 

机构地区：[1]西北工业大学理学院应用化学系,西安710129

出　　处：《工程塑料应用》2012年第4期19-23,共5页Engineering Plastics Application

基　　金：西北工业大学创新基金项目(2010 KJ0204)

摘　　要：以自制的两种不同黏度的环氧基倍半硅氧烷(POSS)为改性剂,对双酚A型环氧树脂(EP)/4,4'–二氨基二苯砜(DDS)进行改性,制备EP/POSS杂化材料。再以纳米SiO2为填料制备了EP/POSS/SiO2纳米复合材料。结果表明,与EP相比,杂化材料和纳米复合材料的弯曲强度和弯曲弹性模量都有所提高,其中纳米复合材料(分别添加低黏度和高黏度的POSS)的弯曲弹性模量分别提高了15.03%和9.44%,添加高黏度的POSS和纳米SiO2后其杂化材料和纳米复合材料体系的弯曲强度均有所提高,杂化材料和纳米复合材料的最大分解温度和在高温时的热残留量都有所提高。EP / POSS hybrid materials were prepared from bisphenol A epoxy / 4,4＇-diaminodisphenyl sulfone （ DDS ） modified by two different viscosity epoxy silsesquioxane （ POSS ）.Then EP / POSS / SiO2 nanocomposites were prepared with nanosilica as filler. The result showed that flexural strength and flexural modules of the hybrid materials and nanocomposites increased, the flexural modules of nanocomposites of low and high viscosity POSS increased respectively by 15.03% and 9.44%, the flexural strength of the hybrid materials and nanocomposites increased after adding high-viscosity POSS and nano-silica, the maximum thermal decomposition temperature and residual weight in high temperature also increased.

关 键 词：笼型倍半硅氧烷 环氧树脂 杂化材料 纳米SIO2 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]