In this article, the interphase thickness in polymer carbon nanotubes (CNTs) nanocomposites (PCNT) is correlated to CNT radius and the extent of conductivity transportation from CNT to polymer matrix surrounding the CNT (K). In addition, CNT properties and “K” are applied to suggest the simple equations for percolation threshold and the fraction of networked CNT. A simple model is developed to predict the conductivity of PCNT assuming CNT size, “K” and tunneling resistance. The impacts of different parameters on the interphase thickness, percolation threshold, the fraction of networked CNT, and the conductivity of nanocomposites are studied and many experimental results are used to confirm the predictions. Thin and large CNT as well as high “K” cause low percolation threshold, large conductive networks and desirable conductivity in nanocomposites. Moreover, high tunneling resistivity and large tunneling distance negatively affect the conductivity, but the exceptional CNT conductivity is ineffective. The reasonable roles of all parameters in the predicted conductivity and the fine agreement between predictions and experimental results confirm the developed model.

中文翻译：

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从碳纳米管（CNT）到CNT周围的聚合物基体的电导率传输对纳米复合材料电导率的影响

在本文中，聚合物碳纳米管（CNT）纳米复合材料（PCNT）的相间厚度与CNT半径以及从CNT到围绕CNT的聚合物基质的电导率传输程度有关（K）。另外，应用CNT属性和“ K ”来提出渗流阈值和网状CNT分数的简单方程式。假设碳纳米管的尺寸，“ K ”和隧穿电阻，开发了一个简单的模型来预测PCNT的电导率。研究了不同参数对相间厚度，渗流阈值，网状碳纳米管分数和纳米复合材料电导率的影响，并利用许多实验结果对预测结果进行了验证。薄而大的CNT以及高“ K导致低渗透阈值，大的导电网络和纳米复合材料的理想导电性。此外，高的隧穿电阻率和大的隧穿距离对电导率产生负面影响，但是出色的CNT电导率无效。所有参数在预测电导率中的合理作用以及预测与实验结果之间的精巧吻合证实了所开发的模型。