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.
出处
《西南科技大学学报》
CAS
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)
