BCE/BMI/Nano-SiO_2复合材料的性能研究  

Study on Properties of BCE/BMI/Nano-SiO_2 Composite

作　　者：方芬[1] 孙爱娟[1] 

机构地区：[1]宁夏大学化学化工学院,宁夏银川750021

出　　处：《塑料科技》2011年第1期58-61,共4页Plastics Science and Technology

摘　　要：采用熔融共混法制备了氰酸(酯BCE/)双马来酰亚胺预聚(体BMI)/纳米二氧化(硅nano-SiO2)复合材料,研究了nano-SiO2用量对复合材料耐热性能、静态力学性能和动态力学性能的影响,并利用扫描电镜分析了nano-SiO2在聚合物基体中的分散情况。结果表明:随着nano-SiO2用量的增加,BCE/BMI/nano-SiO2复合材料的冲击强度和弯曲强度均是先升后降,冲击强度、弯曲强度和储能模量均在nano-SiO2含量为2%时达到最大值;nano-SiO2的加入可以提高复合材料的耐热性,但随其用量的增加,nano-SiO2在基体中的分散性逐渐变差。BCE/BMI/nano-SiO2 composite was prepared by melt blending.The effect of nano-SiO2 content on thermal properties,mechanical properties and dynamic mechanical properties of the composite were studied.The dispersion of nano-SiO2 in matrix was analyzed by SEM.The results show that with the increase of nano-SiO2 content,both impact strength and flexural strength of the composite increase at first and then decrease,and impact strength,flexural strength and storage modulus are up to the maximum value with the addition of 2% nano-SiO2;the addition of nano-SiO2 improves the thermal properties of the composite;the dispersion of nano-SiO2 in matrix becomes worse with the increase of nano-SiO2 content.

关 键 词：氰酸酯 双马来酰亚胺预聚体 纳米二氧化硅 复合材料 力学性能 耐热性能 

分 类 号：TQ324[化学工程—合成树脂塑料工业]