Sodium Carboxymethyl Cellulose/Polypyrrole Nanoparticle-doped Conductive Hydrogel for Self-powered Flexible Strain Sensors and Signal Transmission

Jie He; Chang-Ning Hu; Zhou-Ya Yang; Hui Yang; Yin-Jie Peng

doi:10.1007/s10118-026-3681-y

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Sodium Carboxymethyl Cellulose/Polypyrrole Nanoparticle-doped Conductive Hydrogel for Self-powered Flexible Strain Sensors and Signal Transmission

RESEARCH ARTICLE | Updated：2026-07-27

- Sodium Carboxymethyl Cellulose/Polypyrrole Nanoparticle-doped Conductive Hydrogel for Self-powered Flexible Strain Sensors and Signal Transmission
- Chinese Journal of Polymer Science Vol. 44, Issue 8, Pages: 2714-2725(2026)
- Affiliations：
  
  School of Physics and Astronomy, China West Normal University, Nanchong 637009, China
- Author bio：
  
  sdlzyanghui@126.com (H.Y.)
  pyj1992263@hotmail.com (Y.J.P.)
- Funds：
- DOI：10.1007/s10118-026-3681-y
  CLC：
- Received：05 February 2026，
  
  Accepted：18 March 2026，
  
  Online First：09 June 2026，
  
  Published：15 August 2026
- Accepted：
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He, J.; Hu, C. N.; Yang, Z. Y.; Yang, H.; Peng, Y. J. Sodium carboxymethyl cellulose/polypyrrole nanoparticle-doped conductive hydrogel for self-powered flexible strain sensors and signal transmission. Chinese J. Polym. Sci. 2026, 44, 2714–2725

Jie He, Chang-Ning Hu, Zhou-Ya Yang, et al. Sodium Carboxymethyl Cellulose/Polypyrrole Nanoparticle-doped Conductive Hydrogel for Self-powered Flexible Strain Sensors and Signal Transmission[J]. Chinese Journal of Polymer Science, 2026, 44(8): 2714-2725.
He, J.; Hu, C. N.; Yang, Z. Y.; Yang, H.; Peng, Y. J. Sodium carboxymethyl cellulose/polypyrrole nanoparticle-doped conductive hydrogel for self-powered flexible strain sensors and signal transmission. Chinese J. Polym. Sci. 2026, 44, 2714–2725 DOI： 10.1007/s10118-026-3681-y.

Jie He, Chang-Ning Hu, Zhou-Ya Yang, et al. Sodium Carboxymethyl Cellulose/Polypyrrole Nanoparticle-doped Conductive Hydrogel for Self-powered Flexible Strain Sensors and Signal Transmission[J]. Chinese Journal of Polymer Science, 2026, 44(8): 2714-2725. DOI： 10.1007/s10118-026-3681-y.

摘要

A high-performance conductive hydrogel is prepared

via in situ

incorporation of a CMC/PPy composite into a hydrophobic polyacrylamide network. It combines excellent mechanics with a wide sensing range

enabling wearable strain sensing

self-powered sensing

and Morse code transmission.

Abstract

Conductive hydrogels

with their excellent flexibility and tunable electrical conductivity

have shown broad application prospects in emerging fields such as flexible strain sensors and triboelectric nanogenerators (TENG). In this study

a conductive sodium carboxymethyl cellulose (CMC)/ polypyrrole (PPy)/polyacrylamide (PAM)(CPA) hydrogel was developed by integrating a CMC/PPy composite

synthesized

via in situ

polymerization

into a hydrophobic-associated polyacrylamide network. This hydrogel exhibits excellent mechanical properties

with a tensile strain as high as 1735%

demonstrating extremely high ductility and deformation capacity. The flexible sensor based on CPA hydrogel has a wide detection range (0%−500%) and can monitor the movements of various parts of the human body. In addition

the TENG assembled based on CPA hydrogel achieves stable electrical output performance

enabling it to power small wearable electronic devices and promote self-powered signal transmission

showing broad application prospects in t

he fields of intelligent human-machine interaction and wearable electronics.

关键词

Keywords

references

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