▎ 摘　　要

NOVELTY - Preparing multilayer composite artificial skin sensor, comprises e.g. crushing graphene, adding hydrogen iodide/acetic acid solution, freeze-drying, placing the freeze-dried sample in toluene, and carrying out ultrasonic broking to obtain broken graphene sponge, carrying out centrifugal washing with deionized water, dispersing the graphene sponge in deionized water, under ultrasonic condition dropping silver nitrate solution, reacting, then adjusting pH of the solution, and reacting mixed solution under oil bath, centrifuging the mixed solution to obtain precipitate, and centrifugal washing. USE - The multilayer composite artificial skin sensor is useful in sensor field. ADVANTAGE - The multilayer composite artificial skin sensor: has excellent physical and mechanical properties. DETAILED DESCRIPTION - Preparing multilayer composite artificial skin sensor, comprises (1) crushing graphene using grinder, then adding hydrogen iodide/acetic acid solution, and freeze-drying, (2) placing the freeze-dried sample in toluene, and carrying out ultrasonic broking to obtain broken graphene sponge, and carrying out centrifugal washing with deionized water, (3) dispersing the graphene sponge in deionized water, under ultrasonic condition dropping silver nitrate solution, reacting, then adjusting pH of the solution to 11-12 by adding sodium hydroxide solution, and reacting the mixed solution under oil bath, (4) centrifuging the mixed solution to obtain precipitate, and carrying out centrifugal washing with absolute ethyl alcohol and deionized water respectively to obtain graphite-silver nano composite material, (5) subjecting silicon substrate used for multi-layer composite artificial skin to anti-sticking treatment, placing monocrystalline silicon piece in an evaporating dish, then adding trimethylchlorosilane liquid, and sealing the evaporating dish, where the evaporation time is 8-12 minutes used as non-stick layer, (6) preparing silk fibroin, (7) adding the silk fibroin with antibacterial hemostasis into wound healing medicine, and mixing with ethanol solution to obtain silk fibroin gelatin solution, then subjecting ultrasonic oscillation treatment, then forming silk fibroin film on silicon chip substrate by spin coating, and drying, (8) preparing aqueous solution of graphene-silver nano composite material by ultrasonic dispersion, carrying out spin coating of silk fibroin film to obtain conductive intermediate layer, then drying in an oven at 40-80 degrees C, and (9) carrying out spin coating of polydimethylsiloxane film to above layer to obtain insulating layer, and drying.