▎ 摘　　要

NOVELTY - A medically degradable multi-layer polymer/graphene film material comprises a biodegradable polymer and graphene layer, where the graphene is a single layer of graphene and the thickness is about 0.3-0.4 nm and the thickness of each biodegradable polymer is 0.1-500 mu m. USE - Medically degradable multi-layer polymer/graphene film material for use in clinical surgical suture supporting material and the implant surface modification. ADVANTAGE - The multilayer polymer/graphene film material has high mechanical strength and corrosion resistance and better antibacterial effect, and can be prepared in simple manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing a medically degradable multilayer polymer/graphene film material, which involves attaching the biodegradable polymer solution to the graphene/copper sheet with graphene by spin coating or casting and drying for 1-12 hours, etching the copper sheet in the ammonium persulfate solution at room temperature for 6-24 hours to obtain a degradable polymer/graphene film, transferring the degradable polymer/graphene film to the surface of the graphene/copper sheet, attaching the side of the degradable polymer to the side of the graphene/copper sheet having graphene, and drying for 12-24 hours, adding an ammonium persulfate solution and etching with the copper sheet to obtain a graphene/degradable polymer/graphene film, spin coating or casting the biodegradable polymer solution to prepare degradable polymer film, transferring the obtained product to the surface of the graphene/copper substrate, bonding the degradable polymer side to the side of the graphene/copper substrate having graphene, and etching and removing the copper sheet to obtain the finished product.