▎ 摘　　要

NOVELTY - Primer comprises 0.3-1 pts. wt. graphene, 33-46 pts. wt. thermoplastic acrylic resin, 10-20 pts. wt. titanium dioxide, 0.1-0.5 pts. wt. graphene dispersing agent, 0.5-3 pts. wt. titanium dioxide dispersant, 0.1-0.5 pts. wt. auxiliary agent and 29-56 pts. wt. solvent. USE - Primer for spraying automobile hub. ADVANTAGE - The primer enhances adhesion of topcoat with hub, improves bonding of topcoat with hub and enhances adhesion effect of topcoat. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing a primer for spraying automobile hub, which involves: (A) diluting thermoplastic acrylic resin with solvent; (B) adding graphene dispersing agent and graphene to disperse; and (C) adding titanium dioxide dispersant and titanium dioxide to continue dispersion, and then adding auxiliary agent to obtain primer.