▎ 摘　　要

NOVELTY - Preparation of reduced graphene oxide/silver nanocomposite material involves mixing graphene oxide powder, polyvinylpyrrolidone and silver ion solution to obtain a mixed solution, adding glucose and strong alkali, and reducing. USE - Preparation of reduced graphene oxide/silver nanocomposite material used in preparation of conductive ink for aerosol inkjet printing (all claimed). ADVANTAGE - The method can generate silver nanoparticles with low melting point on the surface of reduced graphene oxide by reducing graphene oxide and silver ion together. Silver nanoparticles are used to prepare conductive ink, and can be melted and further grown at low temperature. The sheet-like structure of reduced graphene oxide can build connection bridges between nanoparticles to ensure electrical conductivity. Graphene in the reduced graphene oxide/silver nanocomposite material can absorb the bending stress when the printed material is bent, and has good flexibility. The printed track can maintain good stability after multiple bending. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: 1. the reduced graphene oxide/silver nanocomposite material, which comprises reduced graphene oxide and silver nanoparticles, which are loaded on the surface of the reduced graphene oxide, and have a particle size of 8-14 nm; 2. a conductive ink, which comprises 40-60 pts. wt. nano-silver powder, 2-5 pts. wt. reduced graphene oxide/silver nanocomposite material, 35-50 pts. wt. high-volatility organic solvent having a saturated vapor pressure of greater than 5 mm mercury, 4-6 pts. wt. low-volatility organic solvent having a saturated vapor pressure of less than 0.5 mm mercury, 1-3 pts. wt. surfactant, 2-4 pts. wt. defoamer and 2-4 pts. wt. stabilizer; and 3. preparation of the conductive ink, which involves mixing high-volatility organic solvent and low-volatility organic solvent, adding nano-silver powder and reduced graphene oxide/silver nanocomposite material to the resulting mixed solvent, and then sequentially adding surfactant, stabilizer and defoamer to the resulting mixture.