Design of Hybridized Network Structure and Photoelectric Thermal Conversion Performance of polyethylene glycol-based Phase Change Composites

ZHAO Zhongguo; WANG Chouxuan; XUE Rong; SHEN Siyang

Volume 41 Issue 7

Jul. 2024

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Article Navigation > Acta Materiae Compositae Sinica > 2024 > 41(7): 3613-3623

ZHAO Zhongguo, WANG Chouxuan, XUE Rong, et al. Design of Hybridized Network Structure and Photoelectric Thermal Conversion Performance of polyethylene glycol-based Phase Change Composites[J]. Acta Materiae Compositae Sinica, 2024, 41(7): 3613-3623.

Citation:

ZHAO Zhongguo, WANG Chouxuan, XUE Rong, et al. Design of Hybridized Network Structure and Photoelectric Thermal Conversion Performance of polyethylene glycol-based Phase Change Composites[J]. Acta Materiae Compositae Sinica, 2024, 41(7): 3613-3623.

Citation:

ZHAO Zhongguo, WANG Chouxuan, XUE Rong, et al. Design of Hybridized Network Structure and Photoelectric Thermal Conversion Performance of polyethylene glycol-based Phase Change Composites[J]. Acta Materiae Compositae Sinica, 2024, 41(7): 3613-3623.

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Design of Hybridized Network Structure and Photoelectric Thermal Conversion Performance of polyethylene glycol-based Phase Change Composites

National Joint Engineering Laboratory of Slag Comprehensive Utilization and Environmental Protection Technology, College of Materials Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, China

Funds: Fund of Education Department of Shaanxi Province (23JK0373)，Talent Start-up Fund of Shaanxi University of Technology (SLGRCQD2329),

Received Date: 2023-09-12
Accepted Date: 2023-11-09
Rev Recd Date: 2023-10-30

Available Online: 2023-11-28

Publish Date: 2024-07-15

Abstract

Abstract

PEG₆₀PLA₄₀CNT_0.6X_(y) phase-change energy storage composites were prepared in this paper by physically hybridizing carbon nanotubes (CNTs) with boron nitride (BN), aluminum trioxide (Al₂O₃), and copper powder (Cu), respectively, to investigate the effects of nanoparticles with different structures on the shape stability and photovoltaic conversion efficiency of polyethylene glycol (PEG) based phase-change composites. The incorporation of Al₂O₃ and Cu nanofillers has a minor effect on the electrical conductivity of the PEG/PLA/CNT/X_(y) composites; however, the introduction of BN drastically reduces the electrical conductivity of the composites. When the mass ratio of BN reaches 40%, the electrical conductivity of the PEG₆₀-PLA₄₀-CNT_0.6-BN₄₀ composites is only 8.71×10^-7 S/m, indicating obvious insulating properties. The spherical Al₂O₃ nanoparticles were found to be uniformly distributed inside the composites by SEM and EDS energy spectroscopy, and the thermal conductivity and enhancement factor ($ \varPhi $) values of PEG₆₀-PLA₄₀-CNT_0.6-Al₂O₃₍₄₀₎ composites were as high as 5.81 W/m·K and 363.6%, respectively. Compared to the PEG₆₀-PLA₄₀ composites, the addition of Al₂O₃ improves the photothermal conversion efficiency ($ \eta $), photosensitive response rate, and current stability of PEG₆₀-PLA₄₀-CNT_0.6-Al₂O₃₍₄₀₎ composites, raising the value from 42.9% to 72.9%.
- Phase conversion energy storage composites,
- Thermal stability,
- Photoelectric conversion,
- Thermal conductivity,
- Electrical conductivity
Long Abstrsct
Innovation Points

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References(25)

References

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