Abstract We aim to express the tunneling resistance in polymer nanocomposites by carbon nanotube (CNT) concentration, interphase depth, CNT curliness, tunneling distance, interfacial tension, network portion and CNT size. The suggested equation is applied to determine the tunneling resistance in some specimens and to estimate the inspirations of dissimilar parameters on the tunneling resistance. The samples do not show a determinate trend between tunneling resistance and filler concentration. Some factors including tunneling distance, percolation onset, CNT content and CNT curliness directly manage the tunneling resistance. Therefore, short tunneling distance, small percolation onset, low CNT content and low CNT curliness produce the poor tunneling resistance. Nonetheless, the resistance of tunnels inversely depends on the portion of attached CNTs, CNT conductivity, CNT length, interphase depth, CNT radius and interfacial tension (i.e. the high levels of these parameters cause the low tunneling resistance). Among the studied parameters, tunneling distance and percolation threshold are the most important parameters manipulating the tunneling resistance, whereas the concentration and length of CNTs have the least effects. As a result, low tunneling distance and small percolation threshold are vital to reduce the tunneling resistance and obtain the conductive nanocomposites.

中文翻译：

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聚合物纳米复合材料中相邻碳纳米管之间隧道电阻的形成

摘要 我们旨在通过碳纳米管 (CNT) 浓度、界面深度、CNT 卷曲度、隧道距离、界面张力、网络部分和 CNT 尺寸来表达聚合物纳米复合材料中的隧道电阻。建议的公式用于确定某些试件的隧道阻力并估计不同参数对隧道阻力的影响。样品未显示隧道抗性和填料浓度之间的确定趋势。包括隧穿距离、渗透起始、CNT含量和CNT卷曲度在内的一些因素直接控制隧穿阻力。因此，短隧穿距离、小渗透起始、低CNT含量和低CNT卷曲产生差的抗隧穿性。尽管如此，隧道的电阻与附着的碳纳米管的部分成反比，CNT 电导率、CNT 长度、界面深度、CNT 半径和界面张力（即这些参数的高水平导致低隧道电阻）。在研究的参数中，隧穿距离和渗透阈值是影响隧穿阻力的最重要参数，而碳纳米管的浓度和长度影响最小。因此，低隧穿距离和小渗透阈值对于降低隧穿电阻和获得导电纳米复合材料至关重要。而碳纳米管的浓度和长度影响最小。因此，低隧穿距离和小渗透阈值对于降低隧穿电阻和获得导电纳米复合材料至关重要。而碳纳米管的浓度和长度影响最小。因此，低隧穿距离和小渗透阈值对于降低隧穿电阻和获得导电纳米复合材料至关重要。