Electrically conductive charcoal powder/ultrahigh molecular weight polyethylene composites

• 作 者: SuiyiLi;DagangLi;
• 机 构: College of Materials Science and Engineering,Nanjing Forestry University,Nanjing 210037,China
• 出 处: 第六届全国生物质材料科学与技术学术研讨会
• 发表日期: 2015年期

　　Electrically conductive polymer composite of ultrahigh molecular weight polyethylene(UHMWPE)filled with charcoal powder were prepared by extrusion and hot-compression methods.Scanning electron microscopy was used to investigate interfaces between UHMWPE and charcoal powder.The results showed that charcoal powder could have strong interfacial interaction with UHMWPE and good dispersion was achieved.The electrical conductivity of the composite was reported as the function of charcoal powder concentration.At 80 wt%charcoal powder loading,the composite exhibited an electrical conductivity of 1.2 S/cm,which is adequate for many electrical applications.Furthermore,it is obvious that while increasing charcoal powder concentration resulted in increased tensile properties,the tensile strength significantly increased by 230%for the sample containing 70 wt%charcoal powder compared to neat UHMWPE.