Enhancing heat energy transfer at graphene/polypropylene interface

Haiying Yang, Shan Gao, Xinying Xu and Ping Yang

Applied Energy, 2025, vol. 381, issue C, No S0306261924025182

Abstract: We investigate the effects of polypropylene (PP) matrix molecular chain regularity, density and functionalized graphene on the interface thermal conductance (ITC) of PP/graphene by using molecular dynamics. The results indicate that enhancing the regularity of the molecular chain can improve phonon scattering at the interface, while increasing the density of PP can enhance the interaction force between PP and graphene, thereby enhancing the phonon coupling and interfacial heat transfer efficiency. Additionally, covalently functionalized graphene can improve the interfacial heat transfer of PP/graphene, and this improvement is related to the type and number of functional groups on the graphene surface. It implies that we can get efficient interfacial heat transfer performance with graphene/PP interface by superior configuration on structure and parameters.

Keywords: Graphene/polypropylene interface; Thermal conductivity; Covalent functionalization; Density; Molecular dynamics (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1016/j.apenergy.2024.125134

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