Abstract

Adding nano silver wires (AgNWs) onto electrospun polyurethane (PU) nanofiber mat provide a new idea for developing wearable smart textiles. The excellent stretchability of PU and the excellent electrical conductivity of AgNWs enable wearable smart textiles to monitor human physiological data. In this study, PU nanofiber mat was prepared by electrospinning and subsequently was dip into AgNWs dispersion for conductivity. The PU nanofiber mats adsorbed with AgNWs were with both good stretching and electrical conductivity. The surface morphology and surface elements were analyzed by scanning electron microscopy (SEM) and energy dispersive spectrometer (EDS). The mechanical properties and the variation of electrical conductivity under static and dynamic stretching cycles were studied. In addition, it is accurately monitoring variation in electrical conductivity during finger bending and wrist movement. The experimental results show that the PU mat treated by AgNWs has the potential to be used as a wearable strain sensor for real-time monitoring of human motion.

中文翻译：

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通过简单的干法制造聚氨酯纳米纤维毡/ AgNWs高灵敏度应变传感器

摘要

在静电纺聚氨酯（PU）纳米纤维垫上添加纳米银线（AgNWs）为开发可穿戴智能纺织品提供了新思路。PU出色的拉伸性和AgNW的出色电导率使可穿戴智能纺织品能够监测人体生理数据。在这项研究中，通过静电纺丝制备了PU纳米纤维毡，然后将其浸入AgNWs分散液中以提高导电性。AgNWs吸附的PU纳米纤维垫具有良好的拉伸性和导电性。通过扫描电子显微镜（SEM）和能量色散谱仪（EDS）分析表面形态和表面元素。研究了在静态和动态拉伸循环下的力学性能和电导率的变化。此外，它可以精确地监测手指弯曲和腕部运动过程中电导率的变化。实验结果表明，经AgNWs处理的PU垫具有用作实时监测人体运动的可穿戴应变传感器的潜力。