High-sensitivity flexible wearable sensor based on PVDF/MWNT

WANG Yuxi; YANG Xiaopeng; WANG Jiaqi; TAN Qiulin

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High-sensitivity flexible wearable sensor based on PVDF/MWNT

Design & Manufacture | 更新时间：2026-06-24

- High-sensitivity flexible wearable sensor based on PVDF/MWNT
- Vol. 45, Issue 6, Pages: 135-140(2026)
- 作者机构：
  
  1. 中北大学微纳器件与系统教育部重点实验室,山西,太原,030051
  2. 中北大学极限环境光电动态测试技术与仪器全国重点实验室,山西,太原,030051
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP212
- Published：2026
- 稿件说明：
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WANG Yuxi, YANG Xiaopeng, WANG Jiaqi, et al. High-sensitivity flexible wearable sensor based on PVDF/MWNT[J]. 2026, 45(6): 135-140.
DOI：

WANG Yuxi, YANG Xiaopeng, WANG Jiaqi, et al. High-sensitivity flexible wearable sensor based on PVDF/MWNT[J]. 2026, 45(6): 135-140. DOI：

摘要

针对柔性传感器存在与皮肤共形贴附能力差、稳定性差、拉伸性与灵敏度相互制约等问题，制备了一种基于聚偏氟乙烯/多壁碳纳米管（PVDF/MWNT）的高灵敏度且共形贴附能力好的柔性可穿戴传感器。通过在PVDF溶液中掺杂MWNT增强PVDF纳米纤维中的β相形成和电输出，利用静电纺丝技术制备PVDF/MWNT复合薄膜，随后采用真空磁控溅射工艺形成电极层，通过聚二甲基硅氧烷(PDMS)封装等步骤构建了柔性传感器。实验结果表明，该传感器杨氏模量为10.19MPa，灵敏度达0.21mV/με，且具有良好的稳定性（1500次拉伸循环），展现出优异的力学稳定性与电学重复性。同时展示了该传感器在检测眨眼微弱信号和跳跃运动信号应用的可行性，在可穿戴领域、人机交互领域具有广泛的应用前景。

Abstract

A highly sensitive and well-conformable flexible wearable sensor based on polyvinylidene fluoride/multi-walled carbon nanotube (PVDF/MWNT) is developed to address the issues of poor conformal adhesion to skin

poor stability

and mutual constraints between stretchability and sensitivity in flexible sensors.MWNT is doped into PVDF solution to enhance the formation of β-phase and electrical output in PVDF nanofibers

and PVDF/MWNT composite films are prepared using electrospinning technology. Subsequently

the electrode layer is formed using vacuum magnetron sputtering process

and the flexible sensor is constructed through steps including polydimethylsiloxane(PDMS)encapsulation.Experimental results show that the Young’s modulus of the sensor is 10.19MPa

its sensitivity reaches 0.21mV/με

and it has good stability (1500 tensile cycles)

demonstrating excellent mechanical stability and electrical repeatability. At the same time

the feasibility of the sensor in detecting weak blinking signals and jumping motion signals is verified. It has broad application prospects in the fields of wearable and human-computer interaction.

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