Scholarlink

<p>Strain sensors exhibiting heightened sensitivity and an expansive sensing range has emerged as a pivotal focal point within contemporary research endeavors, but the enhanced sensitivity on fiber-based sensors still needs to be systematically studied. Herein, this paper presents a novel approach to the preparation of high-performance fiber-based flexible strain sensors, which is achieved by firstly dip coated with DMF and then followed with layer-by-layer self-assembly to develop flexible strain sensors. Wrinkles are successfully formed on the surface of the wet spinning polyurethane (TPU) fiber by dip coating with DMF. The good conductive network is constructed with self-assembling with chitosan (CTS) and MXene layers, which giving the sensor excellent sensing capabilities. The high sensitivity is attributed to the obvious wrinkles on the surface of the fiber-based sensor with wide sensing range caused by the polymer chain segments within the TPU. The wrinkled structure provides more contact sites for the attachment of chitosan and MXene, endowing the sensor with higher sensing performance. The layer-by-layer self-assembly method allows for precise control over the number of assembled layers and the optimized sensor exhibits high sensitivity (713.7), a wide detection range (2–200%), fast response (150&#xa0;ms), and excellent cyclic stability (3200 tensile cycles). Notably, it demonstrates excellent performance in information recognition and motion signal detection, highlighting its potential applications in smart devices and wearable textiles.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Fiber-based strain sensor based on layer-by-layer assembled TPU/CTS@MXene with wrinkled structure

  • 期刊论文

  • 发表日期：

    2025年7月14日

查看全文
  • Wentong Zhang,
  • Hengyi Cheng,
  • Yanghang Liu,
  • Xianhui Shi,
  • Dan Yu,
  • Wei Wang

摘要

Strain sensors exhibiting heightened sensitivity and an expansive sensing range has emerged as a pivotal focal point within contemporary research endeavors, but the enhanced sensitivity on fiber-based sensors still needs to be systematically studied. Herein, this paper presents a novel approach to the preparation of high-performance fiber-based flexible strain sensors, which is achieved by firstly dip coated with DMF and then followed with layer-by-layer self-assembly to develop flexible strain sensors. Wrinkles are successfully formed on the surface of the wet spinning polyurethane (TPU) fiber by dip coating with DMF. The good conductive network is constructed with self-assembling with chitosan (CTS) and MXene layers, which giving the sensor excellent sensing capabilities. The high sensitivity is attributed to the obvious wrinkles on the surface of the fiber-based sensor with wide sensing range caused by the polymer chain segments within the TPU. The wrinkled structure provides more contact sites for the attachment of chitosan and MXene, endowing the sensor with higher sensing performance. The layer-by-layer self-assembly method allows for precise control over the number of assembled layers and the optimized sensor exhibits high sensitivity (713.7), a wide detection range (2–200%), fast response (150 ms), and excellent cyclic stability (3200 tensile cycles). Notably, it demonstrates excellent performance in information recognition and motion signal detection, highlighting its potential applications in smart devices and wearable textiles.