织物基压阻式柔性压力传感器喷射打印成型

doi:10.3901/JME.2025.03.403

机械工程学报 ›› 2025, Vol. 61 ›› Issue (3): 403-410.doi: 10.3901/JME.2025.03.403

• 数字化设计与制造 • 上一篇

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织物基压阻式柔性压力传感器喷射打印成型

肖渊^1,2, 童垚¹, 杨磊鹏¹, 郭鑫雷¹, 郭栋源¹

1. 西安工程大学机电工程学院西安 710048;
2. 西安工程大学西安市现代智能纺织装备重点实验室西安 710048

收稿日期:2024-02-10 修回日期:2024-07-19 发布日期:2025-03-12
作者简介:肖渊(通信作者)，男，1975年出生，博士，教授，博士研究生导师。主要研究方向为微滴喷射成型技术、能量收集技术、可穿戴智能纺织品等。E-mail:xiaoyuanjidian@xpu.edu.cn;童垚，男，1997年出生，硕士研究生。主要研究方向为可穿戴柔性传感器。E-mail:2464700670@qq.com
基金资助:
西安市现代智能纺织装备重点实验室资助项目(2019220614SY S021CG043)。

Fabric-based Piezoresistive Flexible Pressure Sensor Jet Printing Molding

XIAO Yuan^1,2, TONG Yao¹, YANG Leipeng¹, GUO Xinlei¹, GUO Dongyuan¹

1. College of Mechanical and Electrical Engineering, Xi'an Polytechnic University, Xi'an 710048;
2. Xi'an Key Laboratory of Modern Intelligent Textile Equipment, Xi'an Polytechnic University, Xi'an 710048

Received:2024-02-10 Revised:2024-07-19 Published:2025-03-12

摘要/Abstract

摘要： 柔性压力传感器是可穿戴智能纺织品的重要组成部分，是实现人体与外界信息交互的关键，电极作为传感器的重要组成，在传感器信号变换中尤为重要。针对现有织物基柔性压力传感器电极制备工艺复杂、与织物集成度不高等问题，提出采用微滴喷射与化学沉积技术相结合在织物表面成形金属电极的方法，以碳纳米管溶液浸染的聚酯布为压阻层，实现织物基柔性压力传感器的制备，对制备的电极及压阻层进行微观形貌观察、传感器性能及应用进行测试。结果表明，生成的银微细颗粒均匀，包覆织物表面，织物金属电极的平均方阻为0.029 Ω/sq；压阻层纤维间存在空隙，具有可压缩性，其表面电阻随碳纳米管溶液浸染次数的增加逐渐减小；该传感器可在0～20 kPa下工作，具有0.316 kPa^-1的高灵敏度，良好的压力、频率响应稳定性及重复性。此外，该传感器可清晰反馈手指按压、手指弯曲、喉结发声及音乐播放信号，在运动监测和医疗健康等领域具有一定的应用前景。

关键词: 智能纺织品, 微滴喷射技术, 柔性传感器, 织物

Abstract: The flexible pressure sensor is an essential component of wearable smart textiles, which is the key to realizing the interaction between the human body and external information. As one critical ingredient of sensors, electrodes are significant in sensor signal transformation. Aiming at the existing fabric-based flexible pressure sensor electrode preparation process is complicated, with a low integration degree with fabric. The work proposes a method of forming metal electrodes on fabric surfaces using a combination of microdroplet spraying and chemical deposition techniques to realize the preparation of fabric-based flexible pressure sensors using polyester fabric impregnated with carbon nanotube solution as a piezoresistive layer. The prepared electrodes and piezoresistive layers were observed microscopically, and the performance and application of the prepared sensors are tested. The results show that the generating silver particles are homogeneous and coat the fabric surface, with an average sheet resistance of 0.029 Ω/sq for the fabric metal electrodes; there are voids between the fibers of the piezoresistive layer, which is compressible, and its surface resistance gradually decreases with the increase of the number of carbon nanotube solution dipping; the sensor can operate at 0 to 20 kPa, has a high sensitivity of 0.316 kPa^-1, good pressure and frequency response stability and repeatability. In addition, the sensor can provide clear feedback on finger pressing, finger bending, glottal knot vocalization, and music-playing signals, which have specific application prospects in motion monitoring and medical health.

Key words: smart textiles, microdroplet injection technology, flexible sensors, fabrics

中图分类号:

TP212

肖渊, 童垚, 杨磊鹏, 郭鑫雷, 郭栋源. 织物基压阻式柔性压力传感器喷射打印成型[J]. 机械工程学报, 2025, 61(3): 403-410.

XIAO Yuan, TONG Yao, YANG Leipeng, GUO Xinlei, GUO Dongyuan. Fabric-based Piezoresistive Flexible Pressure Sensor Jet Printing Molding[J]. Journal of Mechanical Engineering, 2025, 61(3): 403-410.

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织物基压阻式柔性压力传感器喷射打印成型

Fabric-based Piezoresistive Flexible Pressure Sensor Jet Printing Molding

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