基于有效介质理论(Effective-Medium Theory,EMA)模拟计算了碳纳米管(Carbon Nanotubes,CNTs)定向排列的CNTs复合材料的电导率及其渗流阈值.结果表明复合材料的电导率及渗流阈值强烈地依赖于CNTs的定向度、长径比和结构.通过计算复合材料电导率的增长率随CNTs含量的关系曲线,可确定出电导率的渗流阈值,其结果与实验基本符合,并对存在的差异给予了合理的解释.
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