材料工程2025，Vol.53Issue(10)：28-39,12.DOI:10.11868/j.issn.1001-4381.2024.000450
导电聚合物复合材料正温度系数效应的研究进展
Research progress in positive temperature coefficient effect of conductive polymer composites
摘要
Abstract
Conductive polymer composites(CPCs)with positive temperature coefficient(PTC)have a wide range of applications in the field of smart heating due to the combination of good electrical conductivity of inorganic fillers and excellent processing properties of polymers.Among them,the percolation threshold,Curie temperature,PTC strength and PTC reproducibility are important parameters for the realization of the PTC effect.Therefore,based on the conductive mechanisms of CPCs and the generation mechanisms of PTC effect,this paper systematically reviews the regulation mechanisms of PTC effect from the perspective of both polymer matrix and filler,and proposes feasible strategies for lowering the percolation threshold,regulating the Curie temperature,improving the PTC strength,and enhancing the reproducibility of PTC,which provides guidance for the design and development of polymer matrix composites with PTC.关键词
导电聚合物复合材料/正温度系数/渗流阈值/居里温度Key words
conductive polymer composites/positive temperature coefficient/percolation threshold/Curie temperature分类
通用工业技术引用本文复制引用
刘园,王天琪,许培炎,崔岩..导电聚合物复合材料正温度系数效应的研究进展[J].材料工程,2025,53(10):28-39,12.基金项目
北方工业大学毓秀创新项目(2024NCUTYXCX105) （2024NCUTYXCX105）
国家自然科学基金项目(51801002) （51801002）
