以甲基磺酸(MSA)为溶剂通过溶液共混法制备了不同多壁碳纳米管(MwNTs)含量的多壁碳纳米管/聚亚苯基苯并二噁唑(MWNTs/PBO)复合材料,用扫描电镜(SEM)对热处理前后复合材料的微结构进行了分析,并对其导电、力学和耐热性能进行了研究.结果表明:MWNTs能均匀地分散在聚合物基体中,并能形成一定的网络结构,热处理后的复合材料较热处理前的结构更致密,导电性能和力学性能都有所改善,其中MWNTs质量分数为10%的热处理后复合材料与纯PBO聚合物相比,体积电阻率降低约9个数量级,而拉伸强度和拉伸模量分别提高了95%和53%,耐热性能也有一定的提高.
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