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Electrospun polyethylene glycol/cellulose acetate phase change fibers with core–sheath structure for thermal energy storage

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  • Chen, Changzhong
  • Zhao, Yiyang
  • Liu, Wenmin

Abstract

The ultrafine phase change fibers (PCFs) with core–sheath structure based on polyethylene glycol/cellulose acetate (PEG/CA) blends were fabricated successfully via coaxial electrospinning for thermal energy storage. SEM and TEM images show that cylindrical and smooth phase change fibers are obtained and PEG as a phase change ingredient is encapsulated completely by CA sheath. The morphology of the composite fibers before and after thermal treatment indicates that the prepared fibers are form stable phase change materials (PCMs). The results from DSC demonstrate that the composite fibers impart balanced and reversible phase change behaviors, and phase transition enthalpies of the composite fibers increase with the increasing of PEG content in the fibers, while the phase transition temperatures of the fibers are similar with those of pure PEG. The stress–strain curves show that the ultimate strength and ultimate strain of the composite fibers are lower than those of CA fibers, and they decrease with the increase of PEG content. The PEG/CA composite fibers have extensive applications as a smart material for thermal energy storage and temperature regulation.

Suggested Citation

  • Chen, Changzhong & Zhao, Yiyang & Liu, Wenmin, 2013. "Electrospun polyethylene glycol/cellulose acetate phase change fibers with core–sheath structure for thermal energy storage," Renewable Energy, Elsevier, vol. 60(C), pages 222-225.
    • Handle: RePEc:eee:renene:v:60:y:2013:i:c:p:222-225
    DOI: 10.1016/j.renene.2013.05.020
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    References listed on IDEAS

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    1. Chen, Changzhong & Wang, Linge & Huang, Yong, 2011. "Electrospun phase change fibers based on polyethylene glycol/cellulose acetate blends," Applied Energy, Elsevier, vol. 88(9), pages 3133-3139.
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    Cited by:

    1. Umair, Malik Muhammad & Zhang, Yuang & Iqbal, Kashif & Zhang, Shufen & Tang, Bingtao, 2019. "Novel strategies and supporting materials applied to shape-stabilize organic phase change materials for thermal energy storage–A review," Applied Energy, Elsevier, vol. 235(C), pages 846-873.
    2. Wu, Yang & Chen, Changzhong & Jia, Yifan & Wu, Jie & Huang, Yong & Wang, Linge, 2018. "Review on electrospun ultrafine phase change fibers (PCFs) for thermal energy storage," Applied Energy, Elsevier, vol. 210(C), pages 167-181.
    3. Chen, Changzhong & Liu, Wenmin & Wang, Hongwei & Peng, Kelin, 2015. "Synthesis and performances of novel solid–solid phase change materials with hexahydroxy compounds for thermal energy storage," Applied Energy, Elsevier, vol. 152(C), pages 198-206.

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