▎ 摘　　要

NOVELTY - Preparing multi-layer graphene oxide-graphene composite film involves dissolving 0.5 mg/ml graphene oxide in absolute ethyl alcohol, dispersing 0.5 mg/ml graphene in anhydrous ethanol, mixing two solution ultrasonically for 2 hours, adding oxidized graphene solution with disposable nozzle of 0.45 mu m disposable filter, and setting ink-jet printer in bottle, selecting 80 mu m spray head, adjusting rise time to 5.0 mu s and pressure maintaining time is 50.0 mu s, descending time is 10.0 mu s, echo time is 50.0 micro-second, increasing time to 5.0 mu s, where load voltage is 0.0 Volt, constant voltage is 100.0 Volt, echo voltage -60.0 Volt to obtain expected stable liquid, fixing polytetrafluoroethylene plate on printing table and heating to 80 degrees C, setting print script, where axis printing pace in x asis is 0.05 mm with 1000 point, Y-axis printing step is 0.05 mm with 1000 points and 5/asterisk5 cm oxidation graphene film, finishing printing and heating for 10 minute, completely evaporating solvent. USE - Method for preparing multi-layer graphene oxide-graphene composite film. DETAILED DESCRIPTION - Soaking plate in 2.5% glutaraldehyde solution for 10 minutes on surface of graphene oxide bonding layer of glutaraldehyde, introducing nitrogen atmosphere at 50 degrees C and drying for 2 hours, installing graphene dispersion ink in the bottle for ink-jet printer, selecting nozzle with diameter of 80 mu m, adjusting rise time to 5.0 and maintaining pressure time to 50.0 mu s, descending time is 10.0 mu s, echo time is 50.0 mu s, final rise time isd 5.0 mu s, open-circuit voltage is 0.0 Volt, constant voltage is 80.0 Volt, echo voltage is -60.0 Volt to obtain expected stable liquid, placing original position of layer of polyfluortetraethylene plate oxidation graphene film on print table and heating to 80 degrees C and repeating step six, nine and tweleve.