Tailoring Dielectric Properties of Polymer Matrix Composites for High-performance Flexible Sensors

Jun Li; Kit-Ming Ma; Li-Sha Zhang; Xiao-Ming Tao

doi:10.1007/s10118-025-3470-z

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Tailoring Dielectric Properties of Polymer Matrix Composites for High-performance Flexible Sensors

RESEARCH ARTICLE | Updated：2026-01-13

- Tailoring Dielectric Properties of Polymer Matrix Composites for High-performance Flexible Sensors
- Chinese Journal of Polymer Science Vol. 44, Issue 1, Pages: 116-126(2026)
- Affiliations：
  
  a.School of Environmental and Chemical Engineering, Wuyi University, Jiangmen 529020, China
  b.Research Institute for Intelligent Wearable Systems, School of Fashion and Textiles, The Hong Kong Polytechnic University, Hong Kong 999077, China
- Author bio：
  
  lijun@wyu.edu.cn (J.L.)
  lisa-lisa.zhang@polyu.edu.hk (L.S.Z.)
  xiao-ming.tao@polyu.edu.hk (X.M.T.)
- Funds：
- DOI：10.1007/s10118-025-3470-z
  CLC： [M
- Received：04 June 2025，
  
  Accepted：30 September 2025，
  
  Online First：18 December 2025，
  
  Published：15 January 2026
- Accepted：
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Li, J.; Ma, K. M.; Zhang, L. S.; Tao, X. M. Tailoring dielectric properties of polymer matrix composites for high-performance flexible sensors. Chinese J. Polym. Sci. 2026, 44, 116–126

Jun Li, Kit-Ming Ma, Li-Sha Zhang, et al. Tailoring Dielectric Properties of Polymer Matrix Composites for High-performance Flexible Sensors[J]. Chinese Journal of Polymer Science, 2026, 44(1): 116-126.
Li, J.; Ma, K. M.; Zhang, L. S.; Tao, X. M. Tailoring dielectric properties of polymer matrix composites for high-performance flexible sensors. Chinese J. Polym. Sci. 2026, 44, 116–126 DOI： 10.1007/s10118-025-3470-z.

Jun Li, Kit-Ming Ma, Li-Sha Zhang, et al. Tailoring Dielectric Properties of Polymer Matrix Composites for High-performance Flexible Sensors[J]. Chinese Journal of Polymer Science, 2026, 44(1): 116-126. DOI： 10.1007/s10118-025-3470-z.

摘要

A flexible dielectric (

=1415

tan

=0.380

100 Hz) is achieved through

in situ

controllable reduction of graphene oxide (GO) in a poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene) (P(VDF-TrFE-CFE)) matrix

arising from optimized electron conjugation

controlled charge migration

and uniform filler dispersion

via

micro-interactions.

Abstract

Polymer matrix composites with high dielectric constants and low dielectric losses are in high demand for flexible electronics. However

simultaneously satisfying these requirements poses a significant scientific challenge owing to the intrinsic trade-off relationship. Herein

we utilized the

in situ

controllable reduction of graphene oxide (GO) within a poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene) (P(VDF-TrFE-CFE)) matrix to regulate the dielectric properties. The as-obtained composite exhibited a high relative dielectric constant of 1415 coupled with a low loss tangent of 0.380 at 100 Hz. Experimental and theoretical studies indicate that the increased degree of electron conjugation and conductivity of the

reduced GO (RGO) are responsible for the high-

. The constrained reduction degree of GO

combined with its homogeneous dispersion in the polymer matrix

effectively suppresses long-range charge carrier migration

thereby minimizing dielectric loss. This novel strategy could be successfully applied to both organic and aqueous systems. Furthermore

a high-performance flexible capacitive proximity sensor was exemplified by the optimization of both the dielectric layer and electrode pattern

exhibiting excellent sensitivity and stability. The fundamental mechanisms elucidated in this study provide crucial design principles for developing dielectric PMCs with tailored properties

thereby opening new avenues for advanced flexible electronic applications.

关键词

Keywords

references

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