Journal
MATERIALS TODAY ENERGY
Volume 18, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.mtener.2020.100504
Keywords
Radiative cooling; Personal thermal management; Fiber; Pore; Melt spinning
Funding
- National Natural Science Foundation of China [51773135, 51973138, 51973141, 51803138]
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Heat stress in hot summer brings serious thermal diseases, thus adversely influencing the economy and human health of the entire society. In this work, novel porous polyvinylidene fluoride (PVDF) fibers and their woven textiles were fabricated for passive human body cooling through combining nanoscience and melt spinning technologies using the in situ microfibrillar method. Because of the high emittance of mid-infrared (94.5%) and opacity of solar irradiation (90.3% for near-infrared and 94.2% for visible light), the optimized porous PVDF textile avoided the simulating human body overheating by 17.7 degrees C under direct solar irradiance and provided the human body with the same thermal comfort as bare skin. (C) 2020 Elsevier Ltd. All rights reserved.
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