CNT薄膜力学性能及电学性能研究  

Research on Mechanical and Electrical Properties of CNT Films

作　　者：刘宁娟 周颉天 周子滢 贾可[1] 刘玮[1] LIU Ningjuan;ZHOU Jietian;ZHOU Ziying;JIA Ke;LIU Wei(Fashion College,Shanghai University of Engineering Science,Shanghai 20620,China)

机构地区：[1]上海工程技术大学服装学院,上海201620

出　　处：《现代纺织技术》2020年第6期11-16,共6页Advanced Textile Technology

基　　金：国家自然科学基金(51503120);上海市扬帆计划项目(14YF14096000);上海市优秀青年教师培养项目(ZZGCD14016)。

摘　　要：为研究预拉伸对碳纳米管(CNT)薄膜力学、电学及应变传感性能的影响,对CNT薄膜进行5%、10%、15%不同程度的预拉伸处理,制备CNT薄膜与聚二甲基硅氧烷(PDMS)的复合膜CNT/PDMS。考察CNT原膜的外观特征及力学、电学性能,不同程度预拉伸处理的CNT薄膜力学、电学性能,CNT/PDMS复合薄膜的传感性能。结果表明:沿CNT薄膜纵向进行预拉伸处理后,较CNT原膜,预拉伸15%的薄膜综合性能最优,断裂强度约79.95 MPa;电导率约1128.58 S/cm,增加了227.82%;传感系数1.4,提高了133%;10%CNT/PDMS复合薄膜传感系数3,较预拉伸15%的CNT薄膜又提高114%。To research the effects of pre-stretching on the mechanical,electrical and strain sensing properties of carbon nanotube(CNT)films,the CNT films were pre-stretched to different degrees(5%,10%and 15%)respectively to prepare the composite film CNT/PDMS of CNT film and polydimethylsiloxane(PDMS).The appearance features,mechanical and electrical properties of original CNT film were investigated.Besides,mechanical and electrical properties of pre-stretched CNT films were explored.As well,the sensing properties of CNT/PDMS composite film were studied.The results showed that compared with original CNT films,after lengthways pre-stretching,15%pre-stretched CNT films had the best comprehensive properties,with the breaking strength of about 79.95 MPa.The conductivity was about 1128.58S/cm,up 227.85%.The sensing coefficient was 1.4,up 133%.The sensing coefficient of 10%CNT/PDMS composite film was 3,up 114%,compared with 15%pre-stretched CNT film.

关 键 词：碳纳米管薄膜 复合膜 预拉伸 力学性能 电学性能 传感性能 

分 类 号：TS101.3[轻工技术与工程—纺织工程]