碳纳米管导电蚕丝的制备及其性能  

Preparation and properties of carbon nanotube conductive silk

作　　者：王蜀[1] 刘祖兰[1] 蒋瑜春[1] 张袁松[1] 

机构地区：[1]西南大学纺织服装学院,重庆400715

出　　处：《纺织学报》2014年第10期12-18,共7页Journal of Textile Research

基　　金：国家级大学生创新创业训练计划项目(201310635047);中央高校基本科研业务费专项资金资助项目(XDJK2013A021;XDJK2013D014);教育部第39批留学基金项目(教外司留【2010】1174号);教育部春晖计划项目(Z2011151)

摘　　要：利用碳纳米管改性蚕丝,以蚕丝体积比电阻为指标,通过单因素分析及正交试验确定制备碳纳米管导电蚕丝的最佳工艺条件,并对其性能进行测试分析。结果表明,制备碳纳米管导电蚕丝的最佳工艺条件为:溶液pH值3.0,浴比1∶500,反应时间1.5 h,碳纳米管质量分数0.07%,温度70℃,此时蚕丝体积比电阻为7.15×10-3Ω·cm,导电性大幅提高。耐久性能测试结果表明,其导电耐久性良好;扫描电镜分析结果表明,纤维表面均匀分布有颗粒状导电物质;红外光谱分析结果表明,导电蚕丝的α螺旋与β折叠结构均有所增加;导电蚕丝断裂强力、断裂伸长率均有所下降,但不影响织物服用性能;X射线衍射分析结果表明,导电蚕丝结晶度有所下降,但幅度较小;TG分析结果表明,其热稳定性无明显变化。In this paper,carbon nanotubes were utilized to modify silk.The optimum process conditions,characterized by volume resistivity,were determined through single factor experiment and orthogonal test,and the properties of modified silk were investigated.It is shown that the optimum process conditions were as follows：the pH value 3.0,the bath ratio 1 ∶ 500,carbon nanotube mass fraction 0.07％,reacting at 70 ℃ for 90 min,and the electric conductivity of the treated silk was greatly improved,and its volume resistivity was 0.007 15 Ω·cm under the optimum conditions.The verification of durability indicated that it has better durability.The SEM analysis showed that there were uniformly distributed with granular conductive material on the surface of the silk.The infrared spectrum analysis showed that Alpha-helix structure and Beta-sheet structure of the conductive silk increased.The breaking strength and breaking elongation of the conductive silk descended a little,without influencing the wearability of the conductive fabric.The X-ray diffraction analysis showed that the degree of crystallization of the conductive silk descended a little.TG analysis showed that the thermal stability of the conductive silk had no obvious change.

关 键 词：碳纳米管 蚕丝 改性 导电 

分 类 号：TS102.3[轻工技术与工程—纺织工程]