▎ 摘　　要

NOVELTY - Preparing graphene oxide-chitosan composite film comprises (1) taking chitosan powder, placing it in high-speed mixer, sealing top cover for 10 minutes to form fine powder, (2) taking out graphene oxide solution dissolved in acetic acid solution using pipette, adding fine powder, stirring with glass rod to obtain mixed solution, (3) placing mixed solution in constant temperature water bath at 40 degrees C, stirring at 120 revolutions/minute for 1 hour, (4) adding glycerin, sealing water bath, stirring at 40 revolutions/minute for 30 minute, (5) transferring mixed solution into beaker, performing high-speed dispersion using ultrasonic disperser until bubbles are eliminated, (6) taking the solution in step (5) on the glass dish, preparing 1 g/mol sodium hydroxide solution, pouring into glass dish, allowing to stand for 20 minutes till chitosan film automatically falls off, taking out with tweezers and washing residual sodium hydroxide solution on the surface of membrane with distilled water. USE - The chitosan film is useful in medical dressing, (claimed). ADVANTAGE - The chitosan film: utilizes graphene oxide thus has increased mechanical properties; and has imporved medicine carrying perfomance.