▎ 摘　　要

NOVELTY - Soybean protein film comprises soy protein isolate powder, functionalized graphene and glycerin and the functionalized graphene is prepared from soy protein isolate as a graphite stripping agent. USE - Used as soybean protein film. ADVANTAGE - The soybean protein film: is environmentally-friendly and has high toughness and strength; and preparation method does not need to the stripping agent soybean protein and solves the problem of the dispersion of graphene in the raw material. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing soybean protein film, comprising (i) dispersing the functionalized graphene in the dispersion medium to obtain a graphene dispersion; (ii) dispersing the soy protein isolate powder in the graphene dispersion, adding the glycerin and stirring; (iii) adding alkali liquor into the dispersion prepared in step (ii); (iii) heating the solution and emulsifying ultrasonically to obtain a film-forming liquid; (v) salivating the film-forming liquid into a film, and drying to obtain a pre-finished product; and (vi) balancing the pre-finished product.