High-strength Carbon Nanotube/Polyetheretherketone Composite Films with Tunable Impregnation for Electromagnetic Interference Shielding and Thermal Management in Harsh Environments

Chun-Qi Guo; Yu Bai; Liu-Bo Liang; Shu-Shu Jia; Xin-Yuan Shi; Gui-Bin Wang; Shu-Ling Zhang

doi:10.1007/s10118-026-3814-3

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High-strength Carbon Nanotube/Polyetheretherketone Composite Films with Tunable Impregnation for Electromagnetic Interference Shielding and Thermal Management in Harsh Environments

RESEARCH ARTICLE | Updated：2026-10-10

- High-strength Carbon Nanotube/Polyetheretherketone Composite Films with Tunable Impregnation for Electromagnetic Interference Shielding and Thermal Management in Harsh Environments
- Chinese Journal of Polymer Science Vol. 44, Pages: 1-12(2026)
- Affiliations：
  
  Key Laboratory of High Performance Plastics, Ministry of Education, College of Chemistry, Jilin University, Changchun 130012, China
- Author bio：
  
  zsl@jlu.edu.cn
- Funds：
- DOI：10.1007/s10118-026-3814-3
  CLC： [M
- Received：12 May 2026，
  
  Accepted：12 July 2026，
  
  Online First：10 October 2026，
  
  Published：2026-09
- Accepted：
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Guo, C. Q.; Bai, Y.; Liang, L. B.; Jia, S. S.; Shi, X. Y.; Wang, G. B.; Zhang, S. L. High-strength carbon nanotube/polyetheretherketone composite films with tunable impregnation for electromagnetic interference shielding and thermal management in harsh environments. Chinese J. Polym. Sci. https://doi.org/10.1007/s10118-026-3814-3

Chun-Qi Guo, Yu Bai, Liu-Bo Liang, et al. High-strength Carbon Nanotube/Polyetheretherketone Composite Films with Tunable Impregnation for Electromagnetic Interference Shielding and Thermal Management in Harsh Environments[J/OL]. Chinese Journal of Polymer Science, 2026, 441-12.
Guo, C. Q.; Bai, Y.; Liang, L. B.; Jia, S. S.; Shi, X. Y.; Wang, G. B.; Zhang, S. L. High-strength carbon nanotube/polyetheretherketone composite films with tunable impregnation for electromagnetic interference shielding and thermal management in harsh environments. Chinese J. Polym. Sci. https://doi.org/10.1007/s10118-026-3814-3 DOI：

Chun-Qi Guo, Yu Bai, Liu-Bo Liang, et al. High-strength Carbon Nanotube/Polyetheretherketone Composite Films with Tunable Impregnation for Electromagnetic Interference Shielding and Thermal Management in Harsh Environments[J/OL]. Chinese Journal of Polymer Science, 2026, 441-12. DOI： 10.1007/s10118-026-3814-3.

摘要

Abstract

With the rapid development of lightweighting and information technology

there is an urgent need for lightweight

high-strength

and multifunctional polymer-based composite films that integrate electromagnetic interference (EMI) shielding and thermal management capabilities. However

maintaining strength and functional stability in harsh environments still faces significant challenges. A carbon nanotube/polyetheretherketone (CNT/PEEK) composite film was fabricated

via

vacuum-assisted impregnation and wet-pressing techniques. By adjusting the molecular we

ight of the PEEK matrix

the composite film attained a high tensile strength of 218.42 MPa. This study elucidates a dual-competition mechanism during the impregnation of polymer solutions with varying molecular weights. The highly conductive carbon nanotube (CNT) film

serving as the functional filler

endows the CNT/PEEK composite film with high EMI shielding effectiveness (SE

of 47 dB at 10 µm

specific shielding effectiveness per thickness (SE/t) of 4700 dB/mm) and outstanding dual-conversion capabilities (electrothermal: 3 V

79 °C; photothermal: 2.0 W/cm

178 °C). Furthermore

the semi-crystalline nature of PEEK ensures that the composite film maintains excellent stability even after undergoing high/low-temperature impacts and long-term erosion under acid/alkali corrosive conditions. The high-strength CNT/PEEK composite film shows promise for applications

such as EMI shielding and thermal management in harsh environments.

关键词

Keywords

references

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