公开(公告)号：US20220163271A1

公开(公告)日：2022-05-26

申请号：US17110489

申请日：2020-12-03

Applicant: Korea University Research and Business Foundation

Inventor： Heon LEE ,  Dongwoo CHAE ,  Soomin SON ,  Hangyu LIM

IPC: F28F13/18 ,  B32B7/023 ,  B32B7/027

Abstract: The present invention relates to a technique of cooling a temperature on the surface or under a material by emitting heat under a radiative cooling device to the outside while minimizing the absorption of light in a solar spectrum by forming a paint coating layer with excellent radiative cooling performance on various surfaces. A radiative cooling device according to an embodiment of the present invention may include a paint coating layer formed by coating or dyeing on various surfaces a paint solution mixed with nano or microparticles of which a particle size and a composition are determined in consideration of infrared emissivity and reflectance to incident sunlight in a wavelength range corresponding to a sky window and a binder mechanically connecting the surfaces of the nano or microparticles in a solvent.