高分子基PTC复合材料的研究进展  

Research Progress on Polymer Based PTC Composites

作　　者：于淼[1] 朱良浩 李新露 赵家鑫 胡洪亮[1] YU Miao;ZHU Lianghao;LI Xinlu;ZHAO Jiaxin;HU Hongliang(School of Materials Science and Engineering,Jilin Jianzhu University,Changchun 130118,China)

机构地区：[1]吉林建筑大学材料科学与工程学院,吉林长春130118

出　　处：《化工技术与开发》2024年第8期34-37,共4页Technology & Development of Chemical Industry

基　　金：吉林省科技发展计划项目(20220203087SF,20230508042RC)。

摘　　要：高分子基正温度系数材料(PTC)因温度敏感性而受到广泛关注,但在高功率应用中,电子元件更容易受到高温引起的电阻变化、电流失控和热失效的影响。本文对高分子PTC复合材料的工作机理、原材料组成、电学性能等进行了全面的总结,综述了影响材料电学性能的因素,以期为高分子基PTC材料的相关研究提供参考。High molecular positive temperature coefficient materials(PTC)had attracted wide attention due to their temperature sensitivity,but in high power applications,electronic components were more susceptible to resistance changes,current runaway and thermal failure caused by high temperature.In this paper,the mechanism,raw material composition,and electrical properties of polymer PTC composites were summarized,the factors which affected the electrical properties of materials were introduced in order to provide a reference for the related research of polymer-based PTC materials.

关 键 词：高分子 正温度系 原材料组成 机理 

分 类 号：TB381[一般工业技术—材料科学与工程]