Scholarlink

<p>Flexible strain sensors are widely applied in medical diagnosis, electronic skin, health detection, and human movement. It is urgent to develop a flexible sensor with simple structure, ultra-low detection limit, excellent sensitivity, and broad detection range. Herein, a flexible strain sensor possessing a double-layered conductive network involving a porous polydimethylsiloxane (PDMS)/multiwalled carbon nanotubes (MWCNTs) and a silver nanowire (AgNW) is obtained. The porous PDMS/MWCNTs films are prepared by curing the PDMS/MWCNTs/NaCl mixture and dissolving the NaCl powder. By depositing different amount of AgNWs on the surface of PDMS/MWCNTs layer to prepare the high conductivity AgNWs, generating the low initial resistance. Due to the synergistic effects of the double-layered conductive network, the flexible strain sensor possessing a very high sensitivity (up to 221.2) and a very wide working range (up to 100%) is obtained. In addition, this sensor has a fast response (110&#xa0;ms) and excellent dynamic stability (6000 cycles). In practical applications, the as-obtained sensor can accurately monitor the human motions and physiological signals, proving great potential application value in human motion detection. This work provides a new approach for developing high-performance flexible strain sensors.</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

Flexible strain sensor based on porous polydimethylsiloxane/multiwalled carbon nanotubes and silver nanowire binary composite film for human physiological signals monitoring

  • 期刊论文

  • 发表日期：

    2025年12月15日

查看全文
  • Dongxu Li,
  • Xianhui Lv,
  • Xingwang Guo,
  • Wei Wei,
  • Jiuyu Ji

摘要

Flexible strain sensors are widely applied in medical diagnosis, electronic skin, health detection, and human movement. It is urgent to develop a flexible sensor with simple structure, ultra-low detection limit, excellent sensitivity, and broad detection range. Herein, a flexible strain sensor possessing a double-layered conductive network involving a porous polydimethylsiloxane (PDMS)/multiwalled carbon nanotubes (MWCNTs) and a silver nanowire (AgNW) is obtained. The porous PDMS/MWCNTs films are prepared by curing the PDMS/MWCNTs/NaCl mixture and dissolving the NaCl powder. By depositing different amount of AgNWs on the surface of PDMS/MWCNTs layer to prepare the high conductivity AgNWs, generating the low initial resistance. Due to the synergistic effects of the double-layered conductive network, the flexible strain sensor possessing a very high sensitivity (up to 221.2) and a very wide working range (up to 100%) is obtained. In addition, this sensor has a fast response (110 ms) and excellent dynamic stability (6000 cycles). In practical applications, the as-obtained sensor can accurately monitor the human motions and physiological signals, proving great potential application value in human motion detection. This work provides a new approach for developing high-performance flexible strain sensors.