以羧基化多壁碳纳米管(MWCNTs)和吡咯单体为反应物,通过原位聚合方法成功制备了MWCNTs/聚吡咯(PPy)导电复合材料;通过傅里叶红外光谱仪、扫描电镜、热重分析仪及四探针电导仪对复合材料的结构与性能进行了表征.结果表明:羧基化MWCNTs高的长径比和大的比表面积使得复合材料比纯PPy的电导率和热稳定性能有显著提高;随着MWCNTs含量增加,复合材料的电导率和热稳定型均明显提高;当MWCNTs质量分数为20％时,复合材料的电导率达到11.1 S·cm-1.
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