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电致驱动巴基纸/形状记忆聚合物复合材料性能

DOI: 10.11990/jheu.201410015

Keywords: 石墨烯, 碳纳米纤维, 纳米纸, 形状记忆聚合物, 复合材料

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Abstract:

为了研究不同质量比例石墨烯(few-layer graphene, FLG)和碳纳米纤维(carbon nanofiber, CNF)对混杂FLG/CNF巴基纸导电性能的影响,测量了FLG/CNF的质量比例由0提高至50%时巴基纸的体积电阻率,并检测了混杂FLG/CNF巴基纸的微观形态,通过实验还研究了FLG/CNF巴基纸增强形状记忆聚合物复合材料的电致驱动效应及温度场分布情况.试验结果表明:FLG/CNF巴基纸中碳纳米纤维填充了石墨烯片层间的空隙,碳纳米纤维和石墨烯片相互搭接形成连续网络;此外,巴基纸中碳纳米纤维和石墨烯比例的变化可导致巴基纸的电阻值发生改变.巴基纸增强形状记忆聚合物复合材料在90 s时完成了形状恢复,和试样初始形状相比,试样形状约恢复了95%.

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