▎ 摘　　要

NOVELTY - An antistatic composite nano-material film comprises folded graphene nanoribbons-carbon nano-fibers nano composite material which is dispersed in a thermoplastic polyurethane substrate. The prepared film is coated. The folded graphene nanoribbons is oxidized graphene nano material modified by ( gamma )-aminopropyltriethoxysilane. The hydrazine hydrate is reduced to obtain the modified material. The mass ratio of folded graphene nanoribbons and carbon nano-fibers in folded graphene nanoribbons-carbon nano-fibers nano composite material is 4:1. USE - Antistatic composite nano-material film for electronic precision material. ADVANTAGE - The antistatic composite nano-material film has excellent antistatic properties and barrier properties. DETAILED DESCRIPTION - An antistatic composite nano-material film comprises folded graphene nanoribbons-carbon nano-fibers nano composite material which is dispersed in a thermoplastic polyurethane substrate. The prepared film is coated. The folded graphene nanoribbons is oxidized graphene nano material modified by ( gamma )-aminopropyltriethoxysilane. The hydrazine hydrate is reduced to obtain the modified material. The mass ratio of folded graphene nanoribbons and carbon nano-fibers in folded graphene nanoribbons-carbon nano-fibers nano composite material is 4:1. The content of the thermoplastic polyurethane in folded graphene nanoribbons-carbon nano-fibers nano-composite material is 0.2-1.5 %mass. An INDEPENDENT CLAIM is included for the preparation method of antistatic composite nano-material film, which involves (1) modifying oxidized graphene nanobelts by ( gamma )-aminopropyltriethoxysilane, freezing and drying to obtain fluorinated graphene oxide nanoribbons, uniformly dispersing fluorinated graphene oxide nanoribbons in deionized water, adding hydrazine hydrate, and reducing to obtain folded graphene nanoribbons, and (2) swelling fully dried thermoplastic polyurethane in dimethylformamide to obtain viscous solution, dripping folded graphene nanoribbons in dimethylformamide dispersion liquid, adding carbon nano-fibers to n the dispersion liquid, ultrasonically processing to form composite solution, mixing the composite solution with viscous solution, coating, and drying.