Multifunctional CNT/cellulose-BN/PVA Composites Integrating Dual-continuous Network Structure with Gradient Conductivity for Electromagnetic Interference Shielding and Joule Heating

Xiao-Rui Wang; Ting-Ting Liu; Cheng-Hua Cui; Xin Xu; Liang-Qing Zhang

doi:10.1007/s10118-025-3520-6

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Multifunctional CNT/cellulose-BN/PVA Composites Integrating Dual-continuous Network Structure with Gradient Conductivity for Electromagnetic Interference Shielding and Joule Heating

RESEARCH ARTICLE | Updated：2026-02-13

- Multifunctional CNT/cellulose-BN/PVA Composites Integrating Dual-continuous Network Structure with Gradient Conductivity for Electromagnetic Interference Shielding and Joule Heating
- Chinese Journal of Polymer Science Vol. 44, Issue 3, Pages: 803-812(2026)
- Affiliations：
  
  a.College of Materials Science and Engineering, Xi’an University of Science and Technology, Xi’an 710054, China
  b.Department of Pediatrics, Northwest Women’s and Children’s Hospital, Xi’an 710061, China
  c.Zhejiang Engineering Research Center for Interface Technology of Medical Polymers and Devices, Shaoxing Key Laboratory of Healthcare Materials and Application Technology, and Center for Healthcare Materials, Shaoxing Institute, Zhejiang University, Shaoxing 312099, China
  d.Zhejiang Tongzheng Pipeline Technology Co., LTD., Zhejiang 312030, China
- Author bio：
  
  liangqingzhang@xust.edu.cn
- Funds：
- DOI：10.1007/s10118-025-3520-6
  CLC：
- Received：23 August 2025，
  
  Accepted：28 November 2025，
  
  Online First：06 February 2026，
  
  Published：15 March 2026
- Accepted：
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Wang, X. R.; Liu, T. T.; Cui, C. H.; Xu, X.; Zhang, L. Q. Multifunctional CNT/cellulose-BN/PVA composites integrating dual-continuous network structure with gradient conductivity for electromagnetic interference shielding and joule heating. Chinese J. Polym. Sci. 2026, 44, 803–812

Xiao-Rui Wang, Ting-Ting Liu, Cheng-Hua Cui, et al. Multifunctional CNT/cellulose-BN/PVA Composites Integrating Dual-continuous Network Structure with Gradient Conductivity for Electromagnetic Interference Shielding and Joule Heating[J]. Chinese Journal of Polymer Science, 2026, 44(3): 803-812.
Wang, X. R.; Liu, T. T.; Cui, C. H.; Xu, X.; Zhang, L. Q. Multifunctional CNT/cellulose-BN/PVA composites integrating dual-continuous network structure with gradient conductivity for electromagnetic interference shielding and joule heating. Chinese J. Polym. Sci. 2026, 44, 803–812 DOI： 10.1007/s10118-025-3520-6.

Xiao-Rui Wang, Ting-Ting Liu, Cheng-Hua Cui, et al. Multifunctional CNT/cellulose-BN/PVA Composites Integrating Dual-continuous Network Structure with Gradient Conductivity for Electromagnetic Interference Shielding and Joule Heating[J]. Chinese Journal of Polymer Science, 2026, 44(3): 803-812. DOI： 10.1007/s10118-025-3520-6.

摘要

An architecture featuring a gradient conductive network and three-dimensional dual-continuous network structure is constructed in carbon nanotubes/cellulose-boron nitride/poly(vinyl alcohol) (CNT/cellulose-BN/PVA) composite

which presents excellent electromagnetic interference shielding and recyclable Joule heating performance.

Abstract

In this study

an architecture featuring a gradient conductive network structure and three-dimensional dual-continuous network structure is constructed in a carbon nanotubes/cellulose-boron nitride/poly(vinyl alcohol) (CNT/cellulose-BN/PVA) composite. Using cellulose aerogel as a template

CNT were incorporated into the cellulose template by vertically impregnating the CNT suspension. Following the impregnation of BN/PVA and high-pressure compression

three-dimensional dual-continuous network structure was successfully constructed in the CNT/cellulose-BN/PVA composite. The comprehensive performance of the composite

including electromagnetic interference (EMI) shielding and Joule heating performance

was investigated. The results indicate that the total EMI shielding effectiveness (SE) for the CNT/cellulose-BN/PVA composite reveals similar values for electromagnetic waves incident from different directions

but totally different shielding mechanisms. For the CNT/cellulose-BN/PVA composite with three impregnation cycles of CNT

the EMI SE values exceeded 39 dB for electromagnetic waves incident from both the high- and low-CNT-content sides. 93% of the microwaves were reflected when electromagnetic waves were incident from the high-CNT-content side

while the reflection coefficient decreased to 0.44 for the transverse direction. In addition

the construction of the dual-continuous network structure enabled the composite to exhibit both excellent electrical conductivity and good thermal conductivity simultaneously

endowing the material with good Joule heating performance. CNT/cellulose-BN/PVA composite films have significant potential for application as EMI shielding materials in extremely cold weather.

关键词

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references

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