材料科学
生物相容性
热电效应
压阻效应
可穿戴计算机
碳纳米管
纳米技术
热塑性聚氨酯
复合材料
耐久性
涂层
数码产品
计算机科学
电气工程
嵌入式系统
工程类
物理
弹性体
冶金
热力学
作者
Xian He,Bingyi Li,Jiaxin Cai,Honghua Zhang,Chengzu Li,Xinxin Li,Jianyong Yu,Liming Wang,Xiaohong Qin
出处
期刊:SusMat
[Wiley]
日期:2023-09-11
卷期号:3 (5): 709-720
被引量:11
摘要
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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