Recyclable, Flexible and Highly Thermally Conductive Phase Change Composites with Dynamic Networks for Thermal Management

Jun-Xia Guo; Shuang-Yu Cai; Xu Han; Ye Sun; Chun-Lin Li; Kai Zheng; Yu-Ze Xu; Rui-Guang Li; Cheng-Jie Li

doi:10.1007/s10118-025-3299-5

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Recyclable, Flexible and Highly Thermally Conductive Phase Change Composites with Dynamic Networks for Thermal Management

RESEARCH ARTICLE | Updated：2025-07-14

- Recyclable, Flexible and Highly Thermally Conductive Phase Change Composites with Dynamic Networks for Thermal Management
- Chinese Journal of Polymer Science Vol. 43, Issue 4, Pages: 625-639(2025)
- Affiliations：
  
  a.School of Environmental and Chemical Engineering, Jiangsu Ocean University, Lianyungang 222005, China
  b.Jiangsu Institute of Marine Resources Development, Jiangsu Ocean University, Lianyungang 222005, China
- Author bio：
  
  licj_poly@jou.edu.cn
- Funds：
- DOI：10.1007/s10118-025-3299-5
  CLC：
- Received：02 December 2024，
  
  Revised：2025-01-04，
  
  Accepted：17 January 2025，
  
  Online First：04 March 2025，
  
  Published：01 April 2025
- Accepted：
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Guo, J. X.; Cai, S. Y.; Han, X.; Sun, Y.; Li, C. L.; Zheng, K.; Xu, Y. Z.; Li, R. G.; Li, C. J. Recyclable, flexible and highly thermally conductive phase change composites with dynamic networks for thermal management. Chinese J. Polym. Sci. 2025, 43, 625–639

Jun-Xia Guo, Shuang-Yu Cai, Xu Han, et al. Recyclable, Flexible and Highly Thermally Conductive Phase Change Composites with Dynamic Networks for Thermal Management[J]. Chinese Journal of Polymer Science, 2025, 43(4): 625-639.
Guo, J. X.; Cai, S. Y.; Han, X.; Sun, Y.; Li, C. L.; Zheng, K.; Xu, Y. Z.; Li, R. G.; Li, C. J. Recyclable, flexible and highly thermally conductive phase change composites with dynamic networks for thermal management. Chinese J. Polym. Sci. 2025, 43, 625–639 DOI： 10.1007/s10118-025-3299-5.

Jun-Xia Guo, Shuang-Yu Cai, Xu Han, et al. Recyclable, Flexible and Highly Thermally Conductive Phase Change Composites with Dynamic Networks for Thermal Management[J]. Chinese Journal of Polymer Science, 2025, 43(4): 625-639. DOI： 10.1007/s10118-025-3299-5.

摘要

The GNR/PW/CGNP composites with dynamic ionic crosslinking exhibit recyclable processability

excellent shape stability

highly thermal conductivity

and high latent heat

which makes the composites the promising candidate for thermal management applications in electronic devices.

Abstract

Flexible phase change materials (PCMs) have become increasingly critical to address the demand for thermal management in electronic technologies and energy conversion. However

their application remains challenging because of their rigidity

liquid leakage

and insufficient thermal conductivity. Herein

flexible glutamic acid@natural rubber/paraffin wax (PW)/carbon nanotubes-graphene nanoplatelets (GNR/PW/CGNP) phase change composites with high thermal conductivity

excellent shape stability

and recyclability were reported. Zn

-based dynamic crosslinking was constructed through the reaction of zinc acetate and carboxyl groups on glutamic acid@natural rubber (GNR)

which was used as a flexible matrix to physically blend with paraffin wax/carbon nanotubes/graphene nanoplatelets (PW/CGNP) to achieve uniform dispersion of PW/CGNP

continuous thermal conductivity networks

and good encapsulation of PW. The GNR/PW/CGNP composites showed excellent mechanical strength

flexibility

and recycling ability

and effective encapsulation prevented the outflow of melted PW during the phase transition. Also

the phase change enthalpy could attain 111.1 J/g with a higher thermal conductivity of 1.055 W/mK

428% higher than that of pure PW owing to the formation of efficient thermal conductive pa

thways

which exhibited outstanding thermal management performance and superior temperature control behavior in electronic devices. The developed flexible composite PCMs may open new possibilities for next-generation flexible thermal management electronics.

关键词

Keywords

references

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