环氧树脂/POSS杂化材料力学性能和耐热性研究  

Study on Mechanical Properties and Thermal Stability on Epoxy Resins/POSS Hybrid Materials

作　　者：辛存良[1] 马晓燕[1] 宋春莹[1] 侯宪冰[1] 屈小红 

机构地区：[1]西北工业大学理学院应用化学系,陕西西安710129 [2]西安航天三沃化学有限公司,陕西西安710089

出　　处：《中国塑料》2012年第9期52-55,共4页China Plastics

基　　金：西北工业大学创新基金(2010KJ0204)

摘　　要：以自行合成的环氧基倍半硅氧烷(POSS)为改性剂,分别对环氧树脂139S/六氢苯酐和环氧树脂BE-188EL/六氢苯酐进行改性,制备环氧树脂/POSS杂化材料。力学性能分析结果表明,两种杂化材料的冲击强度和弯曲强度都有明显的提高,冲击强度分别提高了57.45%和32.26%,弯曲强度分别提高了9.23%和5.07%。热性能分析结果表明,两种杂化材料在高温时的热残留量都有所提高,分别提高了50.19%和20.16%。两种杂化材料的热膨胀系数也得到了降低,即热稳定性得到了提高。Two epoxy resin systems （139S and BE-188EL cured with hexahydrophthalic anhydride） were modified with 3-glycidoxypropyl polyhedral oligomeric silsesquioxane cage （POSS） led to POSS/epoxy hybrid materials. The impact strengths of the two epoxy systems were increased by 57.45 %and 32. 26 %, the flexural strength were increased by 9. 23 % and 5. 07 %, and the thermal residual weight increased by 50. 19 % and 20. 16%. Meanwhile, the coefficients of thermal expansion was lowered.

关 键 词：环氧树脂 笼形倍半硅氧烷 力学性能 热性能 热膨胀系数 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]