碳纳米管浸涂纳米纤维包芯纱的制备及其压电性能  

Preparation and piezoelectric properties of carbon nanotube coated nanofiber core-spun yarn

作　　者：金敬业 吴天美 郎晨宏 陈杨轶 邱夷平 张初阳[2] JIN Jingye;WU Tianmei;LANG Chenhong;CHEN Yangyi;QIU Yiping;ZHANG Chuyang(College of Textiles Science and Engineering(International Institute of Silk),Zhejiang Sci-Tech University,Hangzhou 310000,China;College of Textiles and Apparel,Quanzhou Normal University,Quanzhou 362000,Fujian,China;College of Textiles,Donghua University,Shanghai 201620,China)

机构地区：[1]浙江理工大学纺织科学与工程学院(国际丝绸学院),浙江杭州310000 [2]泉州师范学院纺织与服装学院,福建泉州362000 [3]东华大学纺织学院,上海201620

出　　处：《纺织高校基础科学学报》2022年第4期1-7,共7页Basic Sciences Journal of Textile Universities

基　　金：国家自然科学基金青年基金(51803108);福建省自然科学基金(2019J05106,2019J01741);泉州市科技计划项目-重点产业科技创新项目(2018G011);浙江理工大学科研启动基金(22202251-Y,222202253-Y)。

摘　　要：为开发可用于电子纺织品的压力传感纱线,以镀银尼龙长丝、静电纺压电纳米纤维和碳纳米管覆膜分别作为内电极、绝缘压电层和表层电极制备包芯结构压电纱线,先后研究了纺丝液质量分数、碳纳米管质量分数、浸涂次数、烘干温度、包覆层数等工艺参数对纱线表层导电性能的影响,考查了包芯纱对不同压强和施压频率的响应规律。结果表明:双层包覆结构可有效防止碳纳米管溶液渗入芯层形成短路,提高碳纳米管质量分数及浸涂次数可有效改善表层电极导电性能;在压强5.56~22.22 kPa和压力频率1~3 Hz的条件下,3 cm长的纱线基压力传感器能够稳定输出0.33~1.21 V的交流电信号。该研究为低维柔性压力传感器件的开发提供了一种可行方案。In order to develop pressure sensing yarns that can be used in electronic textiles,core-spun piezoelectric yarns were prepared with silver-coated nylon filaments,electrospun piezoelectric nanofibers,and carbon nanotube films as inner electrodes,insulating piezoelectric layers,and surface electrodes,respectively.The effects of spinning solution mass ratio,carbon nanotube mass ratio,coating times,drying temperature,and number of coating layers on the electrical conductivity were studied,and the response of the core-spun yarn to different pressures was investigated.It is found that the double-layer nanofiber structure can effectively prevent the carbon nanotube solution from infiltrating into the core layer,and increasing the mass ratio of carbon nanotube and the number of coating can effectively improve the electrical conductivity of the surface electrode.Under the pressure of 5.56~22.22 kPa and 1~3 Hz,the 3 cm-long yarn-based pressure sensor can stably output an alternating current signal of 0.33~1.21 V.This research provides a feasible solution for the development of low-dimensional flexible pressure sensing devices.

关 键 词：纳米纤维 包芯纱 碳纳米管 浸涂效果 压电性能 

分 类 号：TS101.3[轻工技术与工程—纺织工程]