Silver halide photosensitive coating for laser film and preparation method thereof

The invention discloses a silver halide photosensitive coating for a laser film, and relates to the technical field of high polymer materials and photosensitive materials, the silver halide photosensitive coating contains a modified silver halide photosensitive material, and the modified silver halide photosensitive material is obtained by mixing nano silicon dioxide-silver halide composite nanoparticles and silane modified graphene oxide; the nano silicon dioxide-silver halide composite nanoparticles are obtained by uniformly covering the surfaces of silver halide crystals with nano silicon dioxide; the silane modified graphene oxide is obtained by modifying graphene oxide by using alkyl triethoxy silane; the silver halide crystal is stable in structure, good in dispersity, not prone to aggregation, not affected by the external environment and good in material performance stability; the problem of non-uniform distribution of nanocrystals is avoided, and meanwhile, the material has certain flexibility and bet