Journal
ACS APPLIED POLYMER MATERIALS
Volume 2, Issue 11, Pages 4379-4386Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsapm.0c00234
Keywords
layered structure; nanostructure; polymer nanofiber; electrospinning; radiative cooling; personal thermal management; IR emission; sunlight reflection
Funding
- National Natural Science Foundation of China [51773135, 51533004, 51973138]
- Arkema Changshu RD Center
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Radiative cooling engineering generally utilizes thermal radiation and sunlight reflection to decrease the temperature of an object or space. In this work, a polymer-based nanophotonic textile (PBNT) based on radiative cooling was fabricated and possesses high spectral selectivity (eta = 5.12), IR absorbance/emittance (epsilon(AW)= 87.31%), and sunlight reflectance (rho = 93.28%). Indoor cooling measurement shows that the skins covered with the PBNT are 3.1-3.5 degrees C lower than traditional textiles. Under direct solar irradiation, the PBNT also exhibits a high cooling capability with skin temperatures 7.7-10.8 degrees C lower in contrast with traditional textiles. More critically, we successfully designed hydrophilic-hydrophobic Janus surfaces so that the metamaterial possesses both wonderful antifouling and moisture permeability properties. Such excellent thermal and wearable properties demonstrate the promising perspective of the PBNT for summer textiles.
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