Humidity-tolerant porous polymer coating for passive daytime radiative cooling
Seoul National University · Advanced Institute of Convergence Technology · +3 more institutions
Abstract
Coating building envelopes with a passive daytime radiative cooling (PDRC) material has attracted enormous attention as an alternative cooling technique with minimal energy consumption and carbon footprint. Despite the exceptional performance and scalability of porous polymer coating (PPC), achieving consistent performance over a wide range of drying environments remains a major challenge for its commercialization as a radiative cooling paint. Herein, we demonstrate the humidity vulnerability of PPC during the drying process and propose a simple strategy to greatly mitigate the issue. Specifically, we find that the solar reflectance of the PPC rapidly decreases with increasing humidity from 30% RH, and the PPC…
Citation impact
- FWCI
- 27.66
- Percentile
- 100%
- References
- 35
Authors
12- DHDongpyo HongCorresponding
Seoul National University, Advanced Institute of Convergence Technology
- YLY. Lee
- OSOk Sung Jeon
Seoul National University, Advanced Institute of Convergence Technology
- ILInsung Lee
Seoul National University, Advanced Institute of Convergence Technology
- SHSe Hun Lee
Seoul National University, Advanced Institute of Convergence Technology
Topics & keywords
- Daytime
- Humidity
- Coating
- Materials science
- Radiative cooling
- Environmental science
- Porosity
- Composite material
- Affordable and clean energy