纺织学报 ›› 2022, Vol. 43 ›› Issue (08): 113-118.doi: 10.13475/j.fzxb.20210805106

• 染整与化学品 • 上一篇    下一篇

聚苯胺涂层经编织物的应变传感性能及其在呼吸监测中的应用

王晨露1, 马金星2, 杨雅晴1, 韩潇1, 洪剑寒1,3,4(), 占海华1,3,4, 杨施倩1, 姚绍芳1, 刘姜乔娜1   

  1. 1.绍兴文理学院 纺织服装学院, 浙江 绍兴 312000
    2.绍兴水乡纺织科技有限公司,浙江 绍兴 312030
    3.浙江省清洁染整技术研究重点实验室, 浙江 绍兴 312000
    4.纤维基复合材料国家工程研究中心绍兴分中心, 浙江 绍兴 312000
  • 收稿日期:2021-08-11 修回日期:2022-02-22 出版日期:2022-08-15 发布日期:2022-08-24
  • 通讯作者: 洪剑寒
  • 作者简介:王晨露(1988—),女,讲师,博士。主要研究方向为纺织面料与服装的设计研究。
  • 基金资助:
    浙江省公益技术研究计划项目(LGG20E030002);浙江省“尖兵”“领雁”研发攻关计划项目(2022C01166);绍兴市技术创新计划项目(2019B22002)

Strain sensing property and respiration monitoring of polyaniline-coated warp-knitted fabrics

WANG Chenlu1, MA Jinxing2, YANG Yaqing1, HAN Xiao1, HONG Jianhan1,3,4(), ZHAN Haihua1,3,4, YANG Shiqian1, YAO Shaofang1, LIU Jiangqiaona1   

  1. 1. College of Textile and Garment, Shaoxing University, Shaoxing, Zhejiang 312000, China
    2. Shaoxing Shuixiang Textile Technology Co., Ltd., Shaoxing, Zhejiang 312030, China
    3. Key Laboratory of Clean Dyeing and Finishing Technology of Zhejiang Province, Shaoxing, Zhejiang 312000, China
    4. Shaoxing Sub-center of National Engineering Research Center for Fiber-based Composites, Shaoxing, Zhejiang 312000, China
  • Received:2021-08-11 Revised:2022-02-22 Published:2022-08-15 Online:2022-08-24
  • Contact: HONG Jianhan

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摘要：

为制备呼吸监测智能服装用针织结构柔性传感器,首先通过等离子体对双经平结构的涤纶经编织物进行预处理,然后利用原位聚合法进行导电处理,分析了导电经编织物的微观结构与导电性能、应变–电阻传感性能,并探讨了其在呼吸监测智能内衣中的应用。结果表明:原位聚合法导电处理可赋予涤纶经编织物良好的导电性能,织物的电阻率较未处理时降低了约11个数量级;导电经编织物具有良好的应变–电阻传感性能,往复拉伸后电阻变化保持稳定,在6％和10％的应变条件下,其敏感因子分别为6和4左右;导电经编织物传感器具备良好的人体呼吸监测能力,不仅能记录呼吸的发生,还可监测呼吸的频率及强度。

关键词: 智能服装, 经编织物, 应变传感器, 聚苯胺, 呼吸监测

Abstract:

For preparation of knitted flexible sensor for respiratory monitoring in smart clothing, a two-bar tricot polyester warp-knitted fabric was pretreated by plasma followed by in-situ polymerization treatment for conductivity. The structure, electrical conductivity and strain-resistance sensing property of conductive warp-knitted fabric was investigated, and its application in respiratory monitoring smart underwear was also discussed. The results show that conductive treatment of in-situ polymerization gives the polyester warp-knitted fabric good electrical conductivity, and the resistivity of the fabric is about 11 orders of magnitude lower than that of the untreated. The resistance of conductive warp-knitted fabric decreases during stretching and recovers when shrinking, which shows good strain-resistance sensing characteristics. After a long time of reciprocating stretching, the resistance changes of the conductive warp-knitted fabric remain stable, and the gauge factors are about 6 and 4 at 6％ and 10％ strain conditions, respectively. The conductive warp-knitted fabric sensor demonstrates good ability to monitor human respiration, which can not only record the occurrence, but also monitor the rate and intensity of respiration.

Key words: smart clothing, warp-knitted fabric, strain sensor, polyaniline, respiration monitoring

中图分类号: 

  • TS181.8

图1

导电经编织物应变–电阻测试装置"

图2

呼吸监测实验"

图3

预处理经编织物和导电经编织物的SEM照片(×1 000)"

图4

预处理经编织物和导电经编织物的红外光谱"

表1

导电经编织物的导电性能"

测试次数 电阻/104 Ω 电阻率/(102 Ω·cm)
1 0.239 0.574
2 0.234 0.562
3 0.245 0.588
平均值 0.239 0.574

图5

不同应变条件下导电经编织物的电阻变化情况"

表2

线性拟合方程"

应变/％ 拟合方程 相关系数r
6 y = –0.162 9x + 1.044 0.975
10 y = –0.184 1x + 1.003 1 0.966

图6

双经平组织的线圈结构图与电阻网络模型"

图7

导电经编织物应变–电阻传感性能重复性"

图8

不同运动状态下呼吸过程中传感器的电阻变化"

表3

呼吸监测数据"

状态 R/R0最大值与最小值的差值 呼吸间隔时间/s
睡眠 0.014 3.01
静坐 0.035 2.84
跑步(5 min) 0.140 3.97
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