期刊
SENSORS AND ACTUATORS A-PHYSICAL
卷 306, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.sna.2020.111958
关键词
Polypyrrole-coated strain sensors; Hybrid covered yarns; Mechanical hysteresis; Electrical hysteressis
资金
- National Natural Science Foundation of China [51603039]
- Key Laboratory of Textile Scienceand Technology (Donghua University), Ministry of Education
- Initial Research Funds for Young Teachers of Donghua University
- ShanghaiPujiang Program
- Fundamental Research Fundsfor the Central Universities
Fiber-based flexible electronics have become one of the most demanding sensing elements by various wearable applications. However, many of those flexible electronics are facing the major challenge of high electromechanical hysteresis. In this paper, polypyrrole-coated strain sensors based on polyurethane yarns and hybrid polyurethane yarns were fabricated and tested. To lower the mechanical and electromechanical hysteresis of the yarn and yarn-based sensors, micro-morphology and electromechanical property of the yarn-based sensors were observed and analyzed, especially the existence and generation of cracks on conductive films of the sensors. The effect of the covered yarn structure on the electromechanical property of the sensors was discussed. Through the results of tensile tests, the electromechanical properties of the yarn-based sensors were characterized, with contributing factors of electromechanical hysteresis examined and reason for the nonlinear electrical resistance-strain relationship elaborated. Furthermore, the covered yarn structure was found stable, with fewer cracks under tension. It's recommended that hybrid PU yarns and corresponding yarn-based sensors shall be firstly considered for future research, for relatively small mechanical and electromechanical hysteresis. (C) 2020 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据