Recyclable Radiative Cooling Paper

Recyclable, Passive Cooling

An eco-friendly radiative cooling material made of delignified cellulose fibers and hydroxyapatite, recyclable and scalable, achieving 6~8.8°C sub-ambient temperature drop under direct sunlight and ~29% building cooling energy savings.

Sun, Haodong · Fengjie, Tang · Chen, Qunfeng · Linmin, Xia · Guo, Chenyue · He, Liu · Zhao, Xinpeng · Zhao, Dongliang · Huang, Liulian · Li, Jianguo · Chen, Lihui

Chemical Engineering Journal 2023

Specifications

Solar reflectance

{'zh': '约94', 'en': '~94'} %

Temperature drop

{'zh': '', 'en': '~8.8'} °C under

cooling energy saving

{'zh': '约29', 'en': '~29'} %

Advantages

Infrared emissivity ~0.95 in atmospheric transparency window