聚四氟乙烯基导电均质复合材料的研究

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聚四氟乙烯基导电均质复合材料的研究   
Study on PTFE Based Conductive Homogeneous Composites

作　　者：李金羽 宋桂珍 程建明 刘慧 丁美娟 杨洋
LI Jin-yu,SONG Gui-zhen,CHENG Jian-ming,LIU Hui,DING Mei-juan,YANG Yang（College of Mechanical Engineering,Taiyuan University of Technology,Taiyuan 030024,China）

机构地区：太原理工大学机械工程学院,山西太原 030024

出　　处：《塑料工业》2018年第5期162-165,共4页
China Plastics Industry

基　　金：山西省自然科学基金项目（2013011024-1）; 太原理工大学大学生创新创业项目（SD17100237）

摘　　要：以聚四氟乙烯（PTFE）为基体,电解铜粉、偶联剂及Si C等材料为填充剂,通过设计不同的原料比例,用冷压烧结的方法制备了一种耐磨导电均质复合材料,并测试了它的压缩性能和导电性。结果表明,随着电解铜粉质量分数增大,复合材料的延展性增强,屈服强度增大,电解铜粉在复合材料内部均匀分布并相互接触形成三维导电网络,提高了复合材料的导电性。复合材料的这些性质说明它可以考虑用作电磁屏蔽及密封件的材料。
Through the design of different material ratios,the polytetrafluoroethylene（PTFE） based wear-resisting conductive homogeneous composites with different contents of electrolytic copper powder,coupling agents and carborundum（Si C） particles were prepared by cold press molding and sintering method.The compressive properties and conductivity of the composites were measured indirectly.The results show that the ductility and yield strength are enhanced with the increasing contents of electrolytic copper powder.The electrolytic copper powders are distributed evenly and in contact with each other to form a three-dimensional conductive network,thus the conductivity of composites improves.These properties of composites show that the composites can be considered as electromagnetic shielding and sealing material.

关 键 词：PTFE复合材料 电解铜粉 屈服强度 导电性

分 类 号：TQ325.4[化学工程—合成树脂塑料工业]