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2025 0

DOI: https://doi.org/10.7536/PC241001

Original article

Research on Flexible Pressure Sensor based on Polydimethylsiloxane

  • Guang Yang ,
  • Demei Yu , *
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  • School of Chemistry, Xi 'an Jiaotong University, Xi 'an 710115, China
* The work was supported by Shaanxi Provincial Department of Science and Technology, General Project-Youth Project (2022 JQ-485) (Research on high-performance flexible pressure sensor based on bionic interlocking porous microstructure conductive elastomer) Corresponding author e-mail:

Received date: 2024-10-08

  Revised date: 2024-11-19

  Online published: 2025-03-19

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Abstract

With the advancement of technology, flexible pressure sensors have been widely utilized in wearable device fields such as medical monitoring and motion monitoring, primarily due to their thinness, lightness, flexibility, good ductility, as well as their faster response speed and higher sensitivity compared to traditional rigid sensors. When subjected to external forces, the elastic elements within these sensors undergo deformation, converting mechanical signals into electrical signals. Consequently, the choice of elastic elements significantly impacts the overall performance of flexible pressure sensors. Polydimethylsiloxane (PDMS) is extensively used as a flexible substrate in sensors because of its stable chemical properties, good thermal stability, low preparation cost, and excellent biocompatibility. By collecting relevant information, this paper reviews the sensing mechanisms of PDMS-based flexible pressure sensors, introduces preparation techniques to improve the properties of PDMS materials, including the recently popular methods of introducing porous structures and constructing surface architectures, and discusses the applications of PDMS-based flexible pressure sensors in medical monitoring, electronic skin, and other fields. Finally, the challenges faced by PDMS-based flexible sensors and their future opportunities are prospected.

Contents

1 Introduction

2 Flexible pressure sensor

3 Fabrication technology of flexible sensor with improved performance

3.1 Pore structure

3.2 Surface Micro-Nano Structures

4 Application of flexible pressure sensor based on PDMS

4.1 Health monitoring

4.2 Electronic skin

5 Conclusion and outlook

Key words： polydimethylsiloxane; flexible pressure sensor; pore structure; micro-nano structure

Cite this article

Guang Yang , Demei Yu . Research on Flexible Pressure Sensor based on Polydimethylsiloxane[J]. Progress in Chemistry, 2025 . DOI: 10.7536/PC241001

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