Dynamic percolation differs from static percolation in polymer composites owing to its occurrence at a particular filler fraction under thermal activation. Mechanistic insights into dynamic percolation might lead to develop polymer composites with controlled electrical properties at lower filler fractions and improved temperature coefficient of resistance phase transitions. Although attempts have been made to kinetically describe the dynamic percolation in polymer composites, a generalized mechanism‐based approach has not yet been reported. In this article, a systematic and generalized theoretical approach to kinetically model the dynamic percolation in polymer/carbon composites has been put forward. Based on the proposed approach, a kinetic expression to predict the quasi‐thermodynamic equilibrium state in a polymer/carbon composite at constant temperature is derived. The soundness of the proposed approach is justified by its effective applications on poly(vinylidene fluoride)/multiwalled carbon nanotube (PVDF/MWNT), poly(vinylidene fluoride)/carboxyl‐functionalized MWNT (PVDF/MWNT), high‐density polyethylene/carbon black, and poly(methyl methacrylate)/carbon black composites. Certain mechanistic complexities of dynamic percolation are also pointed out and discussed. POLYM. ENG. SCI., 60: 423–433, 2019. © 2019 Society of Plastics Engineers

中文翻译：

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聚合物/碳复合材料中动态渗透动力学

动态渗滤不同于聚合物复合物中的静态渗滤，因为它在热活化下以特定的填料比例出现。对动态渗流的力学见解可能会导致开发出聚合物复合材料，该复合材料在较低的填料含量下具有受控的电性能，并改善了电阻相变的温度系数。尽管已尝试从动力学上描述聚合物复合材料中的动态渗滤，但尚未报道基于通用机理的方法。在本文中，提出了一种系统的，广义的理论方法来对聚合物/碳复合材料中的动态渗流进行动力学建模。根据建议的方法，推导了一个动力学表达式来预测聚合物/碳复合材料在恒定温度下的准热力学平衡状态。该方法在聚偏氟乙烯/多壁碳纳米管（PVDF / MWNT），聚偏氟乙烯/羧基官能化的MWNT（PVDF / MWNT），高密度聚乙烯/碳纤维上的有效应用证明了其合理性黑色和聚（甲基丙烯酸甲酯）/炭黑复合材料。还指出并讨论了动态渗流的某些机械复杂性。POLYM。ENG。SCI。，60：423–433，2019.©2019塑料工程师协会 聚偏二氟乙烯/羧基官能化的MWNT（PVDF / MWNT），高密度聚乙烯/炭黑和聚甲基丙烯酸甲酯/炭黑复合材料。还指出并讨论了动态渗流的某些机械复杂性。POLYM。ENG。SCI。，60：423–433，2019.©2019塑料工程师协会 聚偏二氟乙烯/羧基官能化的MWNT（PVDF / MWNT），高密度聚乙烯/炭黑和聚甲基丙烯酸甲酯/炭黑复合材料。还指出并讨论了动态渗流的某些机械复杂性。POLYM。ENG。SCI。，60：423–433，2019.©2019塑料工程师协会