HDPE/CB-GP复合材料体系电性质的研究  

Study on electric property of HDPE/CB-GP composites

作　　者：易回阳[1] 陈芳[1] 陈彦国[1] 

机构地区：[1]湖北师范学院生化分析技术湖北省重点实验室,湖北黄石435002

出　　处：《功能材料》2007年第A02期607-609,共3页Journal of Functional Materials

基　　金：湖北省教育厅重点科研基金资助项目（D200622004）.

摘　　要：当HDPE含量46％（质量分数，以下同）、其它添加剂（如抗氧剂、阻燃剂、交联剂和润滑剂等辅助填料）的含量11％，两种导电填料石墨（GP）和碳黑（CB）的总含量为43％时，研究结果表明石墨含量的变化对HDPE/CB-GP复合材料室温电阻率、阴C强度和后NTC强度有显著的影响．HDPE/CB-GP复合材料中GP的含量〈8．6％时，样品的室温电阻率〈30Ω·m，PTC强度〉7、后NTC强度〈1．3；电阻率．温度曲线经过17次冷热循环后重现性好，复合材料具有实际应用价值；GP在复合材料中为层片状结构。For the HDPE weight fraction is 46wt%, other additives （for instance, anti-oxidant, anti-flammability agent, cross-linking agent and lubricant etc） are 1 lwt%, all of carbon black and graphite for conducting electricity materials is 43wt%, the research results show that the slight change of graphite content in HDPE/CB-GP composite can obviously affect the room temperature volume resistivity, the PTC intensity and the NTC intensity of composites. At the graphite content in HDPE/CB-GP composite is less than 8.6wt%, composites sample room temperature volume resistivity is smallness than 30Dom, the PTC intensity is larger than 7, the NTC intensity is not bigness than 1.3. Here, the HDPE/CB-GP composite has actual application value by reason that the electric resistivity-temperature graphs have good image repetitiousness pass through 17th repetitious heat-cold cycles. Graohite has a samdwich in the composites by SEM images.

关 键 词：复合材料 体积电阻率 PTC强度 高密度聚乙烯 

分 类 号：TB33[一般工业技术—材料科学与工程]