双马来酰亚胺/环氧树脂/纳米SiO_2复合材料的制备与性能研究  

Preparation and Performance of Bismaleimide Resin/Epoxy Resin/Nano-SiO_2 Composites

作　　者：傅洁玉 胡程耀[1] 蔡小平[2] 霍冀川[1] 侯雅楠[1] 

机构地区：[1]西南科技大学材料科学与工程学院,四川绵阳621010 [2]中国石油吉林石化公司研究院,吉林吉林132021

出　　处：《中国塑料》2013年第10期40-45,共6页China Plastics

基　　金：国家高技术研究发展计划(863计划)重点资助项目(2009AA035002)

摘　　要：研究了纳米二氧化硅(SiO2)的含量对双马来酰亚胺(BMI)/环氧树脂(EP)/2,2′-二烯丙基双酚A(DBA)/纳米SiO2复合材料的耐热性能、力学性能和吸水性能的影响。结果表明,当纳米SiO2的含量为2.0%(质量分数,下同)时,BMI/EP/DBA/纳米SiO2复合材料具有较高的强度和良好的韧性,其拉伸强度、弯曲强度和缺口冲击强度比BMI/EP/DBA复合材料分别提高了22.8%、39.0%和37.8%;同时,纳米SiO2含量为2.0%时,BMI/EP/DBA/纳米SiO2复合材料具有优异的耐热性,其玻璃化转变温度、初始热分解温度和最大热分解温度分别为204、410、451℃。Effect of nano-SiO2 content on the mechanical properties, thermal behavior and water- absorbing of BMI/EP/DBA/nano-SiO2 composites was investigated. When the mass fraction of nano-SiO2 content was 2 %, the composites had higher strength and better toughness, compared with BMI/EP/DBA copolymers, and their tensile strength, flexural and notch impact strengths were improved by 22. 8 %, 39.0 %, and 37.8%, respectively. When the mass fraction of nano- SiO2 content was 2 %, the composites had excellent heat resistance; the glass transition temperature, initial degradation temperature, and the maximum degradation temperature were 204, 410, and 451 ℃, respectively.

关 键 词：双马来酰亚胺树脂 环氧树脂 纳米二氧化硅 热性能 力学性能 吸水性能 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]