Study on reduction of thermal conductivity of composite phase change material using Cu nanoparticles

Ju-Lan ZengHunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, School of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha, People’s Republic of ChinaCorrespondence[email protected] [email protected]
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Ting XieHunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, School of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha, People’s Republic of ChinaView further author information

Yu-Xiang ZhangHunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, School of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha, People’s Republic of ChinaView further author information

Liu-Mo JiangHunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, School of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha, People’s Republic of ChinaView further author information

Kun-Yu LiHunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, School of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha, People’s Republic of ChinaView further author information

Sai-Bo YuChina Tobacco Hunan Industrial Corporation, Changsha, People’s Republic of ChinaView further author information

Shao-Fen WangHunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, School of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha, People’s Republic of ChinaView further author information

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ABSTRACT

A composite phase change material (PCM) containing Cu nanoparticles (NPs) was prepared. XRD and TEM results showed that the Cu NPs were pure metal with irregular morphology. The diameter of Cu NPs was in the range of 5–15 nm. The composite PCM melted at the temperature of 310 K and the total phase change enthalpy was 122 J/g. The thermal conductivity of the composite PCM was reduced by Cu NPs from 0.130 W/mK to 0.102 W/mK. The as-prepared composite PCM might be an appropriate candidate for thermal protection where PCM with lower thermal conductivity is needed.

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Funding

This work was financially supported by the National Natural Science Foundation of China (51701023), Hunan Provincial Natural Science Foundation of China, and Scientific Research Fund of Hunan Provincial Education Department (15B002).

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Study on reduction of thermal conductivity of composite phase change material using Cu nanoparticles

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