Volume 10 Issue 4
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Article Navigation >  Journal of Bioresources and Bioproducts  > 2025  >  10(4): 648-659
Kang Yang, Chao Duan, Yijian Wen, Guodong Tian, Ruoteng Ma, Xiaoshuang Liu, Yucheng Bie. Hierarchically porous coaxial wet-spun cellulose/polyurethane based hexamethylene diisocyanate (PUH) solid-solid phase change fiber for enhanced thermal management[J]. Journal of Bioresources and Bioproducts, 2025, 10(4): 648-659. doi: 10.1016/j.jobab.2025.07.005
Citation: Kang Yang, Chao Duan, Yijian Wen, Guodong Tian, Ruoteng Ma, Xiaoshuang Liu, Yucheng Bie. Hierarchically porous coaxial wet-spun cellulose/polyurethane based hexamethylene diisocyanate (PUH) solid-solid phase change fiber for enhanced thermal management[J]. Journal of Bioresources and Bioproducts, 2025, 10(4): 648-659. doi: 10.1016/j.jobab.2025.07.005
shu

Hierarchically porous coaxial wet-spun cellulose/polyurethane based hexamethylene diisocyanate (PUH) solid-solid phase change fiber for enhanced thermal management

doi: 10.1016/j.jobab.2025.07.005
  • a.

    College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China

  • b.

    Limerick Pulp and Paper Centre, University of New Brunswick, New Brunswick E3B 5A3, Canada

More Information
  • Corresponding author: E-mail address: duanchao@sust.edu.cn (C. Duan)
  • Received Date: 2025-05-04
  • Accepted Date: 2025-07-20
  • Rev Recd Date: 2025-07-12
    • Available Online: 2025-08-11
  • Publish Date: 2025-11-01
    Abstract
  • In the present study, we innovatively construct a porous sponge-like solid-solid phase change fiber (SSPCF) based on one-pot coaxial wet spinning process. For the core-sheath SSPCF, cellulose serves as the sheath precursor, while an isocyanate modified polyethylene glycol (PEG), namely polyurethane-based hexamethylene diisocyanate (PUH), acts as the core solid-solid phase change material (SSPCM). Upon the non-solvent induced phase separation (NIPS) during the wet spinning, the unique SSPCF with thin and dense sheath yet thick and porous sponge-like core were successfully fabricated, and they exhibited excellent slow heat release, high-temperature thermal protection. It is hypothesized that the porous structure within the fiber core primarily accounts for the superior temperature control heat release behavior and thermal insulation capability. Additionally, the prepared SSPCFs demonstrate high phase change enthalpy (105.26 J/g), high strength (10.38 MPa), excellent leak-proof and cyclic stability. Compared to solid-liquid phase change fibers (enthalpy: 110.7 J/g) and commercial polyethylene terephthalate (PET) fibers, the thermal response time (900 s) of the SSPCFs is extended by 300 s and 755 s, while their heat release time (450 s) is increased by 127 and 347 s, respectively. This research provides inspiration for the development of high-temperature insulation and slow heat release functional fibers and fabrics.

     

    • Declaration of competing interest
    The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
    Supplementary materials
    Supplementary material associated with this article can be found, in the online version, at doi:10.1016/j.jobab.2025.07.005.
    ✩ Peer review under the responsibility of Editorial Office of Journal of Bioresources and Bioproducts.
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