镀银玻璃微珠/碳纳米管复合材料制备与性能研究  

Preparation of silver-plated glass microbeads/carbon nanotube composites and performance study

作　　者：陈志 李超芹[1] Chen Zhi;Li Chaoqin(Qingdao University of Science & Technology, Qingdao 266042, Shandong, China)

机构地区：[1]青岛科技大学高性能聚合物研究院

出　　处：《橡塑技术与装备》2019年第21期1-8,共8页China Rubber/Plastics Technology and Equipment

基　　金：国家重大科学仪器设备开发专项（2012YQ230043）;绿色轮胎与橡胶协同创新中心2015年度开放课题支持

摘　　要：以镀银玻璃微珠和碳纳米管珠作为导电填料,硅橡胶作为基体,制备出了高导电橡胶。研究了镀银玻璃微珠、石墨烯和镀银玻璃微珠和石墨烯并用对硅橡胶力学性能和导电性能的影响。研究发现:两种填料均能在硅橡胶中分散均匀,镀银玻璃微珠的渗流阈值为250份左右,石墨烯的渗流阈值为20份左右,两种填料并用的渗流阈值为镀银玻璃微珠80份,石墨烯10份,在达到相同导电性时,两种填料并用比添加单一镀银玻璃微珠减少了添加量。Highly conductive rubber was prepared by using silver-plated glass beads and carbon nanotube beads as conductive fillers and silicone rubber as matrix. The effects of silver-plated glass beads, graphene and silver-plated glass beads blended with graphene on the mechanical properties and electrical conductivity of silicone rubber were investigated. The study found that both fillers can be uniformly dispersed in silicone rubber, the percolation threshold of silver-plated glass beads is about 250 parts, and the percolationthreshold of graphene is about 20 parts. The percolation threshold of the two blended fillers was 80 parts of silver-plated glass microbeads and 10 parts of graphene. When the same conductivity was achieved, the two fillers are added in a smaller amount than the single silver-plated glass microbeads.

关 键 词：硅橡胶 镀银玻璃微珠 石墨烯 体积电阻率 表面电阻 

分 类 号：TQ333.93[化学工程—橡胶工业]