▎ 摘　　要

NOVELTY - Graphene oxide high-barrier composite film comprises 92-97 pts. wt. polyester resin, 3-8 pts. wt. oxygen-absorbing graphene oxide composite particles and 0.03-0.08 pts. wt. catalyst. The oxygen-absorbing graphene oxide composite particles are calculated in units by mass, and comprises 6-20 pts. wt. oxygen absorbing agent 1,4-butenediol and 80-94 pts. wt. graphene oxide. The preparation method involves dissolving graphene oxide and 1,4-butenediol in ethanol respectively, and ultrasonicating for 30 minutes to obtain graphene oxide ethanol suspension and 1,4-butenediol ethanol solution, respectively, mixing the two and then obtain oxygen-absorbing graphene oxide composite particles after ultrasonic, reflux, washing, centrifugation, washing suction filtration, and vacuum drying. USE - Graphene oxide high-barrier composite film used for technical field of food, and electronic packaging. ADVANTAGE - The graphene oxide high-barrier composite film absorbs the oxygen entering the path, hence achieves better oxygen barrier effect. DETAILED DESCRIPTION - Graphene oxide high-barrier composite film comprises 92-97 pts. wt. polyester resin, 3-8 pts. wt. oxygen-absorbing graphene oxide composite particles and 0.03-0.08 pts. wt. catalyst. The oxygen-absorbing graphene oxide composite particles are calculated in units by mass, and comprises 6-20 pts. wt. oxygen absorbing agent 1,4-butenediol and 80-94 pts. wt. graphene oxide. The preparation method involves dissolving graphene oxide and 1,4-butenediol in ethanol respectively, and ultrasonicating for 30 minutes to obtain graphene oxide ethanol suspension and 1,4-butenediol ethanol solution, respectively, mixing the two and then obtain oxygen-absorbing graphene oxide composite particles after ultrasonic, reflux, washing, centrifugation, washing suction filtration, and vacuum drying. The polyester resin, oxygen-absorbing graphene oxide composite particles, and the catalyst are mixed in proportions and then extruded and pelletized by a twin-screw extruder, dried for 6 hours and stored in a nitrogen-filled aluminum foil bag. The particles produced are formed into 0.2 mm thick sheets in a casting double-stretching process machine.