BMI/E-51/DDS/纳米SiO_2复合材料的制备与性能研究  

Study on Preparation and Performance of Bismaleimide / epoxy /DDS / nano- SiO_2 Composites

作　　者：陈永龙[1] 胡程耀[1] 霍冀川[2] 马红芳[1] 邓超月 

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]西南科技大学分析测试中心,四川绵阳621010

出　　处：《西南科技大学学报》2015年第3期1-5,56,共6页Journal of Southwest University of Science and Technology

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：以BMI,E-51,DBA,DDS和改性纳米Si O2制得BMI/E-51/DDS/纳米Si O2复合材料,研究了纳米Si O2含量对复合材料耐热性能和力学性能的影响。结果表明,纳米Si O2质量分数为2.0%时,BMI/E-51/DDS/纳米Si O2复合材料具有良好的耐热性,其初始热分解温度和最大热分解温度分别为375.53℃,401.79℃。同时,当纳米Si O2的质量分数为2.0%时,BMI/E-51/DDS/纳米Si O2复合材料具有良好的力学性能,其拉伸强度、弯曲强度和缺口冲击强度比BMI/E-51/DDS复合材料分别提高了24.1%,25.4%和83.8%。BMI / E- 51 / DDS / nano- silica composites were prepared with BMI,E- 51,DBA,DDS and modified nano- silica. The results show that when the mass fraction of nano- Si O2 is 2. 0%,BMI /E- 51 / DDS / nano- Si O2 composite has good heat resistance and the initial thermal decomposition temperature and the maximum thermal decomposition temperature are 375. 53 ℃,401. 79 ℃,respectively.Simultaneously,when the mass fraction of nano- Si O2 is 2. 0%,BMI / E- 51 DDS / nano- Si O2 composite has good mechanical properties,and the tensile strength,flexural strength and notched impact strength are increased by 24. 1%,25. 4% and 83. 8%,respectively,compared to BMI / E- 51 / DDS composite.

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 微观形貌 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]