聚偏氟乙烯柔性压电式传感器的研制与应用研究

刘源; 李映君; 王桂从; 孟令源

doi:10.7652/xjtuxb202605016

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聚偏氟乙烯柔性压电式传感器的研制与应用研究

更新时间：2026-04-27

- 聚偏氟乙烯柔性压电式传感器的研制与应用研究
- Study on the Development and Application of Polyvinylidene Fluoride Flexible Piezoelectric Sensor
- 西安交通大学学报 2026年60卷第5期页码：164-173
- 作者机构：
  
  济南大学机械工程学院，250022，济南
  山东省传感技术与高精度称重仪器重点实验室，250004，济南
- 作者简介：
  
  作者简介：刘源（2000—），男，硕士生；
  李映君（通信作者），男，教授，硕士生导师。
- 基金信息：
  
  山东省自然科学基金资助项目(ZR2023ME109);济南市“新高校20条”科研带头人工作室资助项目(202228116)
- DOI：10.7652/xjtuxb202605016
  中图分类号： TM22;TB33
- 收稿：2025-09-25，
  
  纸质出版：2026-05-10
- 稿件说明：
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刘源, 李映君, 王桂从, 等. 聚偏氟乙烯柔性压电式传感器的研制与应用研究[J]. 西安交通大学学报, 2026,60(5):164-173.

LIU Yuan, LI Yingjun, WANG Guicong, et al. Study on the Development and Application of Polyvinylidene Fluoride Flexible Piezoelectric Sensor[J]. Journal of Xi'an Jiaotong University, 2026, 60(5): 164-173.
刘源, 李映君, 王桂从, 等. 聚偏氟乙烯柔性压电式传感器的研制与应用研究[J]. 西安交通大学学报, 2026,60(5):164-173. DOI： 10.7652/xjtuxb202605016.

LIU Yuan, LI Yingjun, WANG Guicong, et al. Study on the Development and Application of Polyvinylidene Fluoride Flexible Piezoelectric Sensor[J]. Journal of Xi'an Jiaotong University, 2026, 60(5): 164-173. DOI： 10.7652/xjtuxb202605016.

摘要

针对柔性传感器灵敏度低、制备工艺复杂、难以精准检测动态生理信号的问题，采用纳米纤维素（CNF）与氧化锌（ZnO）协同改性策略，通过超声波辅助分散-磁力搅拌耦合工艺优化纳米填料分布，结合溶剂蒸发法制备了厚度为0.1mm的聚偏氟乙烯（PVDF）基复合压电薄膜，并开发聚酰亚胺（PI）胶带柔性封装工艺，构建可穿戴传感器件。实验表明，该传感器在0～700 Pa压力范围内呈线性响应，拟合优度

达到0.983。电压灵敏度达1.1676 V/kPa，相较于PVDF柔性传感器提高了30.6%。响应、恢复时间分别为13、204 ms，且成功实现了人体手腕与手肘运动、颈动脉搏动及鼻息振动等多频生理信号的高保真捕获。研究证实CNF/ZnO协同增强机制可显著提升PVDF压电性能，为可穿戴生理信号监测提供了新材料解决方案。

Abstract

To address the issues of low sensitivity

complex fabrication processes

and difficulties in accurately detecting dynamic physiological signals in flexible sensors

a synergistic modification strategy using cellulose nanofibers (CNF) and zinc oxide (ZnO) is adopted. By employing an ultrasonic-assisted dispersion combined with magnetic stirring process

the distribution of nanofillers was optimized. A polyvinylidene fluoride (PVDF) -based composite piezoelectric film with a thickness of 0.1 mm was fabricated via the solvent evaporation method

and a polyimide (PI) tape-based flexible encapsulation process was developed to construct a wearable sensor device. Experiments show that the sensor exhibits a linear response within the pressure range of 0—700 Pa

with a goodness-of-fit

of 0.983. The voltage sensitivity reaches 1.1676 V/kPa

representing a 30.6% improvement compared to PVDF flexible sensors. The response/recovery time is 13

204 ms

and the sensor successfully achieves high-fidelity capture of multi-frequency physiological signals such as human wrist and elbow movements

carotid artery pulsations

and nasal airflow vibrations. The study confirms that the synergistic enhancement mechanism of CNF/ZnO significantly improves the piezoelectric performance of PVDF

providing a new material solution for wearable physiological signal monitoring.

关键词

Keywords

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