▎ 摘　　要

NOVELTY - High-hydrogen storage composite protective film layer resistant to gamma -ray irradiation, is prepared by taking composite protective film layer which is a zinc oxide film deposited on the surface of a cobalt sulfide metal compound, adding to graphene, performing high-energy ball milling under protection of protective gas, taking out, adding adhesive, uniformly mixing, coating on the surface of the substrate to form a film, drying and performing hydrogenation treatment. USE - As high-hydrogen storage composite protective film layer resistant to gamma -ray irradiation. ADVANTAGE - The method aims to solve the technical problem of poor radiation protection performance of the spacecraft structural functional materials, adopts atomic layer deposition technology to deposit zinc oxide film on the surface of cobalt-sulfur metal compound, uses high-energy ball milling technology to design and prepare high hydrogen storage metal compound, improves compound performance through graphene modification and constructs a composite film structure, uses abundant defects and surface functional groups in the graphene to provide sites combined with the cobalt-sulfur metal compound nanoparticles, uses graphene which has huge specific surface area, strong electron transfer capability and surface addition reaction to quench the free radicals generated by radiation to weaken the radiation aging degradation, maintains the stability of the crosslinking degree, realizes the spatial anti-radiation reinforcement of the satellite structural unit, and provides for material selection and design of the long-life high-reliability spacecraft. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing high-hydrogen storage composite protective film layer resistant to gamma -ray radiation, involving (i) depositing a zinc oxide film on the surface of the cobalt-sulfur metal compound nanoparticles to obtain a zinc oxide-cobalt-sulfur metal compound, (ii) adding to graphene, high-energy ball mill under protection of protective gas, and taking out, (iii) adding adhesive, uniformly mixing, coating on the surface of the substrate to form a film and drying, and (iv) hydrotreating to obtain the product.