Thermal Behavior of Form-stable Para±n/expanded Graphite Composites

Authors

  • Xiuling Zhang Department of Material Engineering, Faculty of Textile Engineering, Technical University of Liberec, Liberec, Czech Republic
  • Kai Yang
  • Mohanapriya Venkataraman Technical University of Liberec, Faculty of Textile Engineering, Department of Material Engineering, Liberec 46117, Czech Republic
  • Jakub Wiener Department of Materials engineering, Faculty of Textile Engineering, Technical University of Liberec, Studentska 1402/2, Liberec, 46117 Liberec 1, Czech Republic
  • Dana Křemenáková Textile Faculty, Dept. of Textile Technologies, Studentská 2, Liberec 461 17 Czech Republic
  • Guocheng Zhu College of Textiles and Engineering, Zhejiang Sci-tech University, Xiasha Education Park, China
  • Juming Yao Zhejiang-Czech Joint Laboratory of Advanced Fiber Materials, Zhejiang Sci-tech University, Xiasha Education Park, China
  • Jiří Militký Textile Faculty, Dept. of Textile Materials, Studentská 2, Liberec 461 17 Czech Republic

DOI:

https://doi.org/10.3993/jfbim03331

Keywords:

para±n wax;expanded graphite;phase change material;crystallization

Abstract

A common phase change material (PCM) utilized for thermal energy storage is paraffin wax (PW). However, the applicability and thermal energy storage effectiveness of PW are constrained by its leakage and poor thermal conductivity. By using the melting-blending technique, composites of PW and expanded graphite (EG) were created, and investigations into the morphology and thermal behavior of PW/EG composites were conducted. in this study. It was found that PW was used as a coating to cover the EG structure and no leakage was detected. The final PW/EG composites had the latent heat of fusion around 122 J/g. Additionally, the embedded PW in EG had a higher degree of crystalline growth. We propose that PW/EG composites have significant potential in thermodynamics-related fields.

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Published

2023-05-09

Issue

Vol. 15 No. 4 (2022)

Section

Articles