▎ 摘　　要

NOVELTY - A passive radiation refrigeration material comprises modified graphene, high reflectivity particles and fluorine-containing resin, and has porous structure taking the modified graphene and the fluorine-containing resin as framework, and high reflectivity particles grafted on the modified graphene sheet layer. USE - Passive radiation refrigeration material used for preparing product including cooling coating, mobile phone radiating film, energy-saving green domestic paint, condensed water preparing device, cooling fabric or radiating packaging film (claimed). ADVANTAGE - The material has highest reflection efficiency of visible light and infrared light of more than 98 % and the infrared emission rate of the atmosphere window wave band of more than 99%. It can bring obvious cooling effect to the object covered by itself under the condition without external energy.