LLDPE/HDPE/MWCNTs导电薄膜的制备及表征  

Preparation and Characterization of LLDPE/HDPE/MWCNTs Conductive Films

作　　者：石素宇 何建龙 沙文杰 卢梦超 辛长征 Shi Suyu;He Jianlong;Sha Wenjie;Lu Mengchao;Xin Changzheng(School of Materials and Chemical Engineering,Henan Institute of Engineering,Zhengzhou,Henan,450007)

机构地区：[1]河南工程学院材料与化学工程学院,河南郑州450007

出　　处：《现代塑料加工应用》2018年第2期1-4,共4页Modern Plastics Processing and Applications

基　　金：国家自然科学基金(51173171)资助;河南工程学院博士基金项目(D2015018)

摘　　要：以线性低密度聚乙烯(LLDPE)为原料,利用高密度聚乙烯(HDPE)和多壁碳纳米管(MWCNTs)为改性剂,通过热压成型和超声分散的方法制备了LLDPE/HDPE/MWCNTs复合薄膜。采用扫描电子显微镜(SEM)、差示扫描量热仪(DSC)、X-射线衍射(XRD)、拉伸性能和导电性能等测试手段,考察了LLDPE/HDPE/MWCNTs复合薄膜的结构、力学性能和导电性能。结果表明:与纯LLDPE相比,LLDPE/HDPE/MWCNTs复合薄膜的拉伸强度和屈服强度均提高;MWCNTs均匀分布在LLDPE/HDPE复合薄膜的表面,形成导电网络结构,有利于LLDPE/HDPE/MWCNTs复合薄膜导电性能的提高。The LLDPE/HDPE/MWCNTs composite membranes were prepared by hot compression molding and ultrasonic dispersion,using LLDPE as raw material,HDPE and MWCNTs as modifiers.The structural,mechanical and electrical properties of the composite membranes were characterized by means of electrical conductivity measurements,tensile tests,SEM,DSC and XRD.The results show that,compared with LLDPE,the tensile strength and yield strength of LLDPE/HDPE/MWCNTs composite membrane are improved obviously;and MWCNTs are uniformly dispersed on the surface of the composite film to form a conductive network structure,which undoubtedly improves the electrical properties of the LLDPE/HDPE/MWCNTs films.

关 键 词：线性低密度聚乙烯 热压成型 多壁碳纳米管 复合薄膜 

分 类 号：TB383.2[一般工业技术—材料科学与工程] TQ325.12[化学工程—合成树脂塑料工业]