纺织学报 ›› 2021, Vol. 42 ›› Issue (06): 114-119.doi: 10.13475/j.fzxb.20200908406

所属专题： 聚吡咯在纺织中的应用

• 染整与化学品 • 上一篇    下一篇

基于聚多巴胺修饰的聚吡咯导电织物制备与应变传感性能

王晓菲, 万爱兰(), 沈新燕   

  1. 江南大学 针织技术教育部工程研究中心, 江苏 无锡 214122
  • 收稿日期:2020-09-30 修回日期:2021-01-20 出版日期:2021-06-15 发布日期:2021-06-28
  • 通讯作者: 万爱兰
  • 作者简介:王晓菲(1997—),女,硕士生。主要研究方向为智能纺织品。
  • 基金资助:
    国家自然科学基金项目(61902150);中央高校基本科研业务费专项资金资助(JUSRP52013B)

Preparation and strain sensing of dopamine-modified polypyrrole conductive fabric

WANG Xiaofei, WAN Ailan(), SHEN Xinyan   

  1. Engineering Research Center for Knitting Technology, Ministry of Education, Jiangnan University, Wuxi, Jiangsu 214122, China
  • Received:2020-09-30 Revised:2021-01-20 Published:2021-06-15 Online:2021-06-28
  • Contact: WAN Ailan

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摘要：

为改善聚吡咯(PPy)导电层与织物基底的结合牢度,提高应变传感器的稳定性,以聚多巴胺为粘合剂,采用原位聚合法制备聚吡咯/聚多巴胺(PPy/PDA)导电涤纶/氨纶织物,探究PPy/PDA导电涤纶/氨纶织物的导电性能和应变传感性能。用扫描电子显微镜、傅里叶变换红外光谱分析其表面形貌与结构,采用实验室自制的KTC传感器测试盒,测试其灵敏度和稳定性。结果表明,与PPy导电涤纶/氨纶织物相比,PPy/PDA导电涤纶/氨纶织物表面导电层更均匀,导电填料与基底的结合牢度更高,制得的传感元件灵敏度高,在500次重复应变后的稳定性更好,可应用于人体运动检测和康复训练等领域。

关键词: 聚吡咯, 聚多巴胺, 导电织物, 灵敏度, 稳定性, 传感性能

Abstract:

In order to improve the binding strength of the polypyrrole(PPy) conductive layer to fabric substrate and the stability of sensors, a polypyrrole/polydopamine (PPy/PDA) conductive polyester/polyurethane fabric was prepared by in-situ polymerization with dopamine as binder, followed by an investigation of the conductive and strain sensing properties of such fabric. The morphology and structure were analyzed by scanning electron microscope and Fourier transform infrared spectroscopy and the sensitivity, repeatability and stability were tested by the self-made KTC Resp Sensor box. The results show that compared with the PPy conductive fabric, the PPy/PDA conductive polyester/polyurethane fabric has a more uniform conductive layer and higher binding strength. The sensing element prepared from this fabric has higher sensitivity and the senser retains good stability after 500 repetitions and can be used for human movement detection and rehabilitation training.

Key words: polypyrrole, polydopamine, conductive fabric, sensitivity, stability, sensing property

中图分类号: 

  • TS195

表1

试样编号"

试样编号 制备试样
0# 仅清洗的涤纶/氨纶原样
1# 聚多巴胺涤纶/氨纶织物
2# 聚吡咯导电涤纶/氨纶织物
3# 聚吡咯/聚多巴胺导电涤纶/氨纶织物

图1

试样的扫描电镜图片"

图2

不同试样的红外光谱图"

表2

试样的表面方阻及CV值"

试样编号 表面方阻/(Ω·□-1) CV值
2# 59.7 0.18
3# 75.3 0.06

图3

平磨后试样的电阻变化率"

图4

摩擦后试样的质量损失率"

图5

试样传感性能测试图"

图6

试样的灵敏度"

图7

试样的稳定性曲线"

图8

手指运动的动态测试"

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