▎ 摘　　要

NOVELTY - Silver-graphene nano compound paste comprises 1-20 pts. wt. 1-100 mg/ml of silver nano wire dispersing liquid, 20-50 pts. wt. graphene powder, 1-20 pts. wt. carbon black, 50-20 pts. wt. aqueous polyurethane resin, 1-50 pts. wt. aqueous epoxy resin, 1-20 pts. wt. acrylic resin, 0.1-5 pts. wt. dispersant, 0.1-2 pts. wt. curing agent, 0.1-10 pts. wt. pH buffering agent and 20-50 pts. wt. water. USE - Silver-graphene nano compound paste. ADVANTAGE - The silver-graphene nano compound paste is eco-friendly, and has improved electrical conductivity and electromagnetic shielding effect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing silver-graphene nano compound paste, which involves: (A) adding graphene powder, carbon black, a dispersing agent and water; (B) stirring the obtained mixture for 0.5-0.6 hours; (C) dispersing the obtained mixture for 1-10 hours ultrasonically; (D) adding aqueous polyurethane resin in the obtained mixture; (E) grinding the obtained mixture in a ball mill; (F) filtering the obtained mixture through 250 mesh filter cloth to obtain slurry A; (G) adding silver nano-line dispersion, aqueous epoxy resin and aqueous acrylic resin in a vacuum stirrer; (H) stirring the obtained mixture to form mixture liquid B; (I) adding the mixed slurry A into a vacuum stirrer, under the continuous stirring; (J) adding pH buffer to adjust the pH to 8; (K) adding the mixed liquid B and diamine curing agent; and (L) stirring the obtained mixture uniformly.