纺织学报 ›› 2019, Vol. 40 ›› Issue (12): 45-49.doi: 10.13475/j.fzxb.20181107406

• 纺织工程 • 上一篇    下一篇

银纳米线涂层的编链结构纱线拉伸应变传感器

吴荣辉1,2,3, 马丽芸1,2, 张一帆1,2,3, 刘向阳2,4, 于伟东1,2,3()   

  1. 1.东华大学 纺织学院, 上海 201620
    2.厦门大学 生物仿生及软物质研究院,福建 厦门 361005
    3.东华大学 纺织面料技术教育部重点实验室, 上海 201620
    4.新加坡国立大学 物理系, 新加坡 117542
  • 收稿日期:2018-11-29 修回日期:2019-05-26 出版日期:2019-12-15 发布日期:2019-12-18
  • 通讯作者: 于伟东
  • 作者简介:吴荣辉(1993—),女,博士生。主要研究方向为功能与智能纺织材料。
  • 基金资助:
    国家重点研发计划项目(2016YFC0802802)

Strain sensor based on silver nanowires coated yarn with chain stitch structure

WU Ronghui1,2,3, MA Liyun1,2, ZHANG Yifan1,2,3, LIU Xiangyang2,4, YU Weidong1,2,3()   

  1. 1. College of Textiles, Donghua University, Shanghai 201620, China
    2. Institute for Biomimetics and Soft Matter, Xiamen University, Xiamen, Fujian 361005, China
    3. Key Laboratory of Textile Science & Technology, Ministry of Education, Donghua University, Shanghai 201620, China
    4. Department of Physics, National University of Singapore, Singapore 117542, Singapore
  • Received:2018-11-29 Revised:2019-05-26 Online:2019-12-15 Published:2019-12-18
  • Contact: YU Weidong

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摘要：

为制备柔性纱线拉伸应变传感器,将蚕丝加捻得到的蚕丝纱编织为闭口编链组织结构;通过多元醇还原硝酸银的方法制备银纳米线,在银纳米线的乙醇分散液中通过浸渍方法对基底纱线进行导电修饰,最终得到银纳米线涂层的编链组织拉伸应变传感器,研究了该组织结构拉伸应变传感器的应变-电阻传感性能。结果表明:编链组织结构的传感器具有显著的拉伸应变传感性能,该纱线传感器的电阻随着应变量的增加而减小;在拉伸应变小于5%的范围内,拉伸应变系数高达20.14;传感器在0.01~1.00 Hz 的拉伸频率范围内有稳定的响应,且传感器具有很好的循环稳定性。

关键词: 蚕丝, 银纳米线, 编链组织, 应变传感器, 智能纺织品

Abstract:

In order to prepare yarn-based strain sensor, the twisted silk filaments were woven into a closed chain stitch structure. Silver nanowire was prepared by reducing silver nitrate with polyol, base yarns were impregnated in an ethanol dispersion of the silver nanowires for conductivity modification. The strain-resistance sensing performance of the yarn-based strain sensor was studied. The results show that the yarns with the chain stitch structure have excellent strain sensing performance, the yarn resistance decreases with the increase of the strain. When the tensile strain is less than 5%, the gauge factor of the strain sensor is up to 20.14. The sensor has stable response in the tensile frequency range from 0.01 Hz to 1.00 Hz, and also has good cycle stability.

Key words: silk, silver nanowire, chain stitch, strain sensor, intelligent textile

中图分类号: 

  • TS141.8

图1

缫丝-加捻-上浆一体化蚕丝纱线加工装置图"

图2

编链组织拉伸应变传感器制备流程图"

图3

银纳米线表面形貌"

图4

编链结构纱线传感器及线圈交界处扫描电镜照片"

图5

纱线传感器的应变-电阻变化率曲线"

图6

闭口编链组织的等效电阻模型"

图7

纱线传感器在不同频率下的电阻响应"

图8

纱线传感器在快速施加和释放应变时应变和电阻变化"

图9

纱线传感器拉伸-电阻变化率的循环性测试曲线"

图10

纱线传感器循环50次的载荷-伸长曲线"

图11

传感器智能手套手指弯曲和伸直时的电阻变化"

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