归纳了影响炭黑／聚烯烃复合材料ＰＴＣ效应的诸因素，认为归根结底取决于炭黑在聚合物基体中的分散程度与分布状态及其随外部条件变化的结果，加工方法和工艺条件在很大程度上决定着制品性能的优劣。文中详细讨论了混合、成型及后处理方法与相应工艺参数对复合材料导电性能的影响，更好地了解这类材料的结构－加工－性能之间的关系、为制备更高性能的ＰＴＣ材料提供了科学依据。 The factors affecting the PTC effect of carbon black / polyolefin composites are summarized, which are ultimately determined by the degree and distribution of carbon black in the polymer matrix and the results of the changes with the external conditions. The processing methods and process conditions are very large To determine the extent of product performance advantages and disadvantages. The effects of mixing, forming and post-treatment methods and corresponding process parameters on the electrical conductivity of composites are discussed in detail. A better understanding of the relationship between the structure-processing-properties of these materials is provided for the preparation of higher performance PTC materials The scientific basis.