不同编织角改性碳纳米管纱线应变传感器的制备与性能

doi:10.19398/j.att.202111015

现代纺织技术 ›› 2022, Vol. 30 ›› Issue (4): 70-79.DOI: 10.19398/j.att.202111015

• 特约专栏:柔性导电纺织材料 • 上一篇下一篇

不同编织角改性碳纳米管纱线应变传感器的制备与性能

王秋妍¹, 谷志旗², 徐铭涛¹, 张岩¹, 王萍¹, 李媛媛¹

1.苏州大学,a.纺织与服装工程学院;b.现代丝绸国家工程实验室(苏州),江苏苏州 215006;
2.南通恒尚新材料科技有限公司,江苏南通 226400

收稿日期:2021-11-05 出版日期:2022-07-10 网络出版日期:2022-08-25
通讯作者:李媛媛,E-mail: yyli2017@suda.edu.cn
作者简介:王秋妍(1996-),女,安徽合肥人,硕士研究生,主要从事柔性传感器方面的研究。
基金资助:
国家自然科学基金青年项目(11802192):江苏省自然科学基金项目(BK20180244)

Preparation and properties of modified carbon nanotube yarn strain sensors with different braiding angles

WANG Qiuyan¹, GU Zhiqi², XU Mingtao¹, ZHANGYan¹, WANGPing¹, LI Yuanyuan¹

1a. School of Textile and Clothing Engineering; 1b. National Engineering Laboratory for Modern Silk (Suzhou), Soochow University, Suzhou 215006, China;
2. Nantong Hanvo New Material Technology Co., Ltd., Nantong 226400, China

Received:2021-11-05 Published:2022-07-10 Online:2022-08-25

摘要/Abstract

摘要： 为了提高传感器的应变范围,选用改性碳纳米管为导电材料、氨纶纱为柔性基体,通过层层组装法制成所需导电纱后,采用编织法制备成不同编织角度的纱线应变传感器,并讨论不同编织角对各种传感性能的影响。研究发现:随着编织角的增加,传感器灵敏度逐渐降低,在拉伸0～40%应变下,10°、20°、30°编织角纱线传感器灵敏度分别表现为181.1、162.2、79.7。快速响应时间随着编织角的增加从175 ms增加至259 ms。在蠕变条件下,该传感器的稳定性与编织角度无关;保持恒定应变时,不同编织角纱线传感器电阻随时间的下降基本一致。当编织角为20°时,传感范围表现最大,可达150%,最小监测范围可至0.2%,同时在传感过程中表现出较低的滞后响应(滞后水平仅为0.2%),该传感器可在不同应变条件下稳定监测电阻信号。改性碳纳米管编织纱线应变传感器在柔性可穿戴传感器等领域具有潜在的应用价值。

关键词: 纱线应变传感器, 编织角, 碳纳米管改性, 应变传感性能, 灵敏度

Abstract: In order to improve the working range of the sensor, the modified carbon nanotubes were selected as the conductive material and spandex yarn was used as the flexible substrate,the required conductive yarn was fabricated by the layer-by-layer assembly method and then the yarn strain sensors with different braiding angles were prepared by braiding method. The effects of different braiding angles on various sensing performances were discussed.As the braiding angle increases, the sensor sensitivity gradually decreases. Under a strain of 0~40%, the sensitivity of the yarn sensor with an angle of 10°, 20° and 30° braid is 181.1, 162.2, and 79.7, respectively. The fast response time increases from 175 ms to 259 ms with increasing braiding angle. The stability of the sensor under creep conditions is independent of the braiding angle. The resistance of yarn sensors with different braiding angles decreases with time basically the same when constant strain is maintained.When the braiding angle is 20°, the sensing range performs the maximum up to 150%, and the minimum monitoring range can reach 0.2%. Low hysteresis response is also exhibited in sensing process (the hysteresis level is only 0.2%),which can monitor the resistance signal stably under different strain conditions. The modified carbon nanotube braided yarn sensor has potential applications in flexible wearable sensors and other fields.

Key words: yarn strain sensor, braiding angle, carbon nanotube modification, strain sensing performance, sensitivity

中图分类号:

TB381

王秋妍, 谷志旗, 徐铭涛, 张岩, 王萍, 李媛媛. 不同编织角改性碳纳米管纱线应变传感器的制备与性能[J]. 现代纺织技术, 2022, 30(4): 70-79.

WANG Qiuyan, GU Zhiqi, XU Mingtao, ZHANGYan, WANGPing, LI Yuanyuan. Preparation and properties of modified carbon nanotube yarn strain sensors with different braiding angles[J]. Advanced Textile Technology, 2022, 30(4): 70-79.

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不同编织角改性碳纳米管纱线应变传感器的制备与性能

Preparation and properties of modified carbon nanotube yarn strain sensors with different braiding angles

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