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Polymers
Volume 16
Issue 3
10.3390/polym16030362
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Article

Flexible Polyolefin Elastomer/Paraffin Wax/Alumina/Graphene Nanoplatelets Phase Change Materials with Enhanced Thermal Conductivity and Mechanical Performance for Solar Conversion and Thermal Energy Storage Applications

by
Jie Tian
1,
Chouxuan Wang
2,
Kaiyuan Wang
2,
Rong Xue
2,
Xinyue Liu
2 and
Qi Yang
3,*
1
School of Civil Engineering and Architecture, Shaanxi University of Technology, Hanzhong 723099, China
2
National and Local Engineering Laboratory for Slag Comprehensive Utilization and Environment Technology, School of Materials Science and Engineering, Shaanxi University of Technology, Hanzhong 723099, China
3
College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
*
Author to whom correspondence should be addressed.
Polymers 2024, 16(3), 362; https://doi.org/10.3390/polym16030362
Submission received: 30 December 2023 / Revised: 23 January 2024 / Accepted: 25 January 2024 / Published: 29 January 2024
(This article belongs to the Special Issue Injection Molding of Polymers and Polymer Composites)
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Abstract

In this study, electrically insulating polyolefin elastomer (POE)-based phase change materials (PCMs) comprising alumina (Al2O3) and graphene nanoplatelets (GNPs) are prepared using a conventional injection moulding technique, which exhibits promising applications for solar energy storage due to the reduced interfacial thermal resistance, excellent stability, and proficient photo-thermal conversion efficiency. A synergistic interplay between Al2O3 and GNPs is observed, which facilitates the establishment of thermally conductive pathways within the POE/paraffin wax (POE/PW) matrix. The in-plane thermal conductivity of POE/PW/GNPs 5 wt%/Al2O3 40 wt% composite reaches as high as 1.82 W m−1K−1, marking a remarkable increase of ≈269.5% when compared with that of its unfilled POE/PW counterpart. The composite exhibits exceptional heat dissipation capabilities, which is critical for thermal management applications in electronics. Moreover, POE/PW/GNPs/Al2O3 composites demonstrate outstanding electrical insulation, enhanced mechanical performance, and efficient solar energy conversion and transportation. Under 80 mW cm−2 NIR light irradiation, the temperature of the POE/PW/GNPs 5 wt%/Al2O3 40 wt% composite reaches approximately 65 °C, a notable 20 °C improvement when compared with the POE/PW blend. The pragmatic and uncomplicated preparation method, coupled with the stellar performance of the composites, opens a promising avenue and broader possibility for developing flexible PCMs for solar conversion and thermal storage applications.
Keywords: phase change materials; injection moulding; solar energy storage; photo-thermal conversion efficiency phase change materials; injection moulding; solar energy storage; photo-thermal conversion efficiency

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MDPI and ACS Style

Tian, J.; Wang, C.; Wang, K.; Xue, R.; Liu, X.; Yang, Q. Flexible Polyolefin Elastomer/Paraffin Wax/Alumina/Graphene Nanoplatelets Phase Change Materials with Enhanced Thermal Conductivity and Mechanical Performance for Solar Conversion and Thermal Energy Storage Applications. Polymers 2024, 16, 362. https://doi.org/10.3390/polym16030362

AMA Style

Tian J, Wang C, Wang K, Xue R, Liu X, Yang Q. Flexible Polyolefin Elastomer/Paraffin Wax/Alumina/Graphene Nanoplatelets Phase Change Materials with Enhanced Thermal Conductivity and Mechanical Performance for Solar Conversion and Thermal Energy Storage Applications. Polymers. 2024; 16(3):362. https://doi.org/10.3390/polym16030362

Chicago/Turabian Style

Tian, Jie, Chouxuan Wang, Kaiyuan Wang, Rong Xue, Xinyue Liu, and Qi Yang. 2024. "Flexible Polyolefin Elastomer/Paraffin Wax/Alumina/Graphene Nanoplatelets Phase Change Materials with Enhanced Thermal Conductivity and Mechanical Performance for Solar Conversion and Thermal Energy Storage Applications" Polymers 16, no. 3: 362. https://doi.org/10.3390/polym16030362

APA Style

Tian, J., Wang, C., Wang, K., Xue, R., Liu, X., & Yang, Q. (2024). Flexible Polyolefin Elastomer/Paraffin Wax/Alumina/Graphene Nanoplatelets Phase Change Materials with Enhanced Thermal Conductivity and Mechanical Performance for Solar Conversion and Thermal Energy Storage Applications. Polymers, 16(3), 362. https://doi.org/10.3390/polym16030362

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