▎ 摘　　要

NOVELTY - Low infrared emissivity carbon-based composite film is claimed. The composite film is prepared by suction filtration of graphene oxide-silver nanoparticle composite material. The graphene oxide-silver nanoparticle composite material is composed of graphene oxide carbon-based framework and silver nanoparticles grown on the carbon-based framework. USE - Used as low infrared emissivity carbon-based composite film. ADVANTAGE - The low infrared emissivity carbon-based composite film: has a thickness can reach 10 µm, and low infrared emissivity of 0.2, and can meet the requirements of lightness in the application process while covering the substrate. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of low infrared emissivity carbon-based composite film, comprising (1) mixing graphene oxide dispersion liquid with silver ammonia solution and formaldehyde solution to obtain reaction solution, heating it to obtain graphene oxide-silver nano particle composite material, and (2) washing the graphene oxide-silver nanoparticle composite material, performing suction filtration and drying to obtain final product.