双马来酰亚胺树脂/碳纳米管复合材料的性能研究  

STUDY ON PROPERTIES OF BISMALEIMIDE/CARBON NANOTUBES COMPOSITES

作　　者：刘琳[1] 王翀[1] 

机构地区：[1]同济大学材料科学与工程学院,上海200092

出　　处：《工程塑料应用》2009年第2期9-12,共4页Engineering Plastics Application

摘　　要：制备了接枝N-苯基马来酰亚胺基团的碳纳米管(PMI-MWNT),并采用原位聚合法制备了双马来酰亚胺-二烯丙基双酚A(BMI-BA)/PMI-MWNT复合材料。研究了PMI-MWNT用量对复合材料力学性能、动态热力学性能的影响。结果表明,随着PMI-MWNT用量的增多,体系的反应活性呈上升趋势,且热力学性能显著提高;当PMI-MWNT的质量分数为1.5%时,复合材料的冲击强度和弯曲强度比BMI树脂分别提高了近291%和50%。Muti-walled carbon nanotubes （MWNTs） were grafted with n-phenyl maleimide （N-PMI）, obtaining PMI-MWNT which could be well dispersed in bismaleimide-diallyl bisphenol A（BMI-BA） matrix. PMI-MWNT/BMI-BA composites were prepared by in situ polymerization. The effects of PMI-MWNT content on the mechanical property and dynamic thermal mechanical property of the composites were investigated. The resuhs showed that PMI-MWNT accelerated the reaction of PMI-MWNT/BMI-BA system and greatly improved the thermal mechanical property of bismaleimide resins. When the mass content of PMI-MWNT was 1.5%, the impact strength and flexural strength achieved the optimum value and increased 391% and 150% accordingly.

关 键 词：碳纳米管 N-苯基马来酰亚胺 双马来酰亚胺-烯丙基双酚A 分散性 

分 类 号：TQ323.7[化学工程—合成树脂塑料工业] TB332[一般工业技术—材料科学与工程]