▎ 摘　　要

NOVELTY - An aqueous graphene coating comprises 30-40 pts. wt. water, 30-50 pts. wt. polyurethane resin, 5-20 pts. wt. graphene and 1-10 pts. wt. auxiliary agent. USE - The aqueous graphene coating useful for heating plate. ADVANTAGE - The coating has a high heat conversion rate. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the aqueous graphene coating comprising dispersing the graphene in the aqueous polyurethane resin, firstly pre-dispersing, adding into the nano-dispersion device in the specification of a high-speed nano-grinding device with external circulation system, controlling the rotating speed gear of 2000-5000 revolutions/minutes, controlling the gear of the circulating pump to 500-10000PRM, dispersing kettle outside the circulating condensed water, controlling the temperature 15 -25 degrees C, reinforcing dispersing for 15 -20 hours where grain diameter is less than 3 m and viscosity is 10-50 CPS, dispersing uniformly and adding water and auxiliary agent.