柔性石墨接地材料的制备工艺研究  

Study on preparation process of flexible graphite grounding material

作　　者：武国亮[1] 李震宇[1] 王志利[1] 赵定义 屈中伟 Wu Guoliang Li Zhenyu Wang Zhili Zhao Dingyi Qu Zhongwei(State Grid Shanxi Power Company,Taiyuan 030001 Wuhan KEDIO Electric Power Technology Co. ,Ltd. ,Wuhan 430000)

机构地区：[1]国网山西省电力公司,太原030001 [2]武汉科迪奥电力科技有限公司,武汉430000

出　　处：《化工新型材料》2016年第12期223-225,共3页New Chemical Materials

基　　金：国网山西省电力公司2014科技计划项目(SGSX0000YJJS1400318)

摘　　要：以膨胀石墨为基体材料,利用导电碳纤维、玻璃纤维作为增强材料,经过压延、上胶、复合、捻线和编织等多道工序,制得应用于电力设施安全防护的柔性石墨接地材料。研究表明,基于膨胀石墨良好导电性能,通过合理的制备工艺,制得直径为28mm的柔性石墨接地材料拉伸强度达5kN,电阻率为0.000025Ω·m、冲击电流耐受强度达5kA以上。经过酸碱腐蚀实验检测,实验样品的电阻率和抗张强度变化幅度都低于10%,满足我国国家标准要求。Using expanded graphite as matrix material,conductive carbon fiber and glass fiber as reinforcing materi al, flexible graphite grounding material was prepared through the process ： rolling, coating, plastic composite, twisting, braid- ing and so on. Based on good conductive performance and through reasonable preparation process, studies shown that the tensile strength of material with a diameter of 28mm was up to 5kN, the resistivity was 2.5 × 10^-5Ω·m, impulse current withstand strength was up to 5kA. Through the acid and alkali corrosion test, the change range of resistivity and tensile strength were lower than 10% ,met the national standard requirements.

关 键 词：接地材料 膨胀石墨 导电碳纤维 玻璃纤维 

分 类 号：TM862[电气工程—高电压与绝缘技术] TQ127.11[化学工程—无机化工]