A waterproof, environment‐friendly, multifunctional, and stretchable thermoelectric fabric for continuous self‐powered personal health signal collection at high humidity

IF 18.7 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

SusMat Pub Date : 2023-09-11 DOI:10.1002/sus2.155

Xinyang He, Bingyi Li, Jiaxin Cai, Honghua Zhang, Chengzu Li, Xinxin Li, Jianyong Yu, Liming Wang, Xiaohong Qin

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引用次数: 0

Abstract

Abstract Thermoelectric sensors have attracted increasing attention in smart wearables due to the recognition of multiple signals in self‐powered mode. However, present thermoelectric devices show disadvantages of low durability, weak wearability, and complex preparation processes and are susceptible to moisture in the microenvironment of the human body, which hinders their further application in wearable electronics. Herein, we prepared a new thermoelectric fabric with thermoplastic polyurethane/carbon nanotubes (TPU/CNTs) by combining vacuum filtration and electrospraying techniques. Electrospraying TPU microsphere coating with good biocompatibility and environmental friendliness made the fabric worn directly and exhibits preferred water resistance, mechanical durability, and stability even after being bent 4000 times, stretched 1000 times, and washed 1000 times. Moreover, this fabric showed a Seebeck coefficient of 49 μV K −1 and strain range of 250% and could collect signals well and avoided interference from moisture. Based on the biocompatibility and safety of the fabric, it can be fabricated into devices and mounted on the human face and elbow for long‐term and continuous collection of data on the body's motion and breathing simultaneously to provide collaborative support information. This thermoelectric fabric‐based sensor will show great potential in advanced smart wearables for health monitoring, motion detection, and human–computer interaction.

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一种防水，环保，多功能，可拉伸的热电织物，用于在高湿度下连续自供电的个人健康信号收集

热电传感器由于能够在自供电模式下识别多种信号，在智能可穿戴设备中受到越来越多的关注。然而，现有的热电器件存在耐久性低、耐磨性差、制备工艺复杂、易受人体微环境水分影响等缺点，阻碍了其在可穿戴电子产品中的进一步应用。本文采用真空过滤和电喷涂相结合的方法制备了热塑性聚氨酯/碳纳米管(TPU/CNTs)热电织物。电喷涂TPU微球涂层，具有良好的生物相容性和环境友好性，使织物直接穿着，即使弯曲4000次，拉伸1000次，洗涤1000次，仍具有良好的耐水性，机械耐久性和稳定性。该织物的塞贝克系数为49 μV K−1，应变范围为250%，能很好地采集信号，避免了水分的干扰。基于织物的生物相容性和安全性，它可以制作成设备，安装在人的脸上和肘部，长期持续收集身体运动和呼吸的数据，同时提供协同支持信息。这种基于热电织物的传感器将在先进的智能可穿戴设备中显示出巨大的潜力，用于健康监测、运动检测和人机交互。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

SusMat

自引率

4.20%

发文量

期刊介绍： SusMat aims to publish interdisciplinary and balanced research on sustainable development in various areas including materials science, engineering, chemistry, physics, and ecology. The journal focuses on sustainable materials and their impact on energy and the environment. The topics covered include environment-friendly materials, green catalysis, clean energy, and waste treatment and management. The readership includes materials scientists, engineers, chemists, physicists, energy and environment researchers, and policy makers. The journal is indexed in CAS, Current Contents, DOAJ, Science Citation Index Expanded, and Web of Science. The journal highly values innovative multidisciplinary research with wide impact.