▎ 摘　　要

NOVELTY - A film contains upper layer and lower layer. The upper layer is main radiation protection layer. The lower layer is bridging layer. The main radiation protection layer comprises graphene, polypropylene glycol, polyoxyethylene triol, additive, dolomite, zinc ore and mica. The bridging layer comprises bimetallic bridging agent, titanate bridging agent and tin bridging agent. USE - The film is useful for computer screen. ADVANTAGE - The film has excellent radiation resistance and compatibility. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation method of film, which involves mixing polypropylene glycol, polyoxyethylene triol and additive and stirring and leaving for 20-30 minutes, adding bridging agent to reaction tank, polishing dolomite, zinc ore and mica, crushing and sieving reacting for 20-30 minutes, mixing and uniformly stirring and heating.