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正温系数（Positive temperature coefficient)导电高分子材料(PTC材料)在工业中得到了广泛的应用。本文综述了炭黑／高聚物导电复合材料ＰＩＣ效应的影响因素，探讨了ＰＴＣ效应稳定化的途径。
Positive temperature coefficient (Positive temperature coefficient) Conductive polymer materials (PTC materials) in the industry has been widely used. In this paper, the influencing factors of the PIC effect of carbon black / polymer conductive composites are reviewed, and the ways to stabilize the PTC effect are discussed.