▎ 摘　　要

NOVELTY - An additive comprises 30-36 pts. wt. graphene oxide, 3-5 pts. wt. nano-silicon carbide whisker, 15-18 pts. wt. sodium citrate and 3-5 pts. wt. sodium silicate. The mass ratio of graphene oxide and nano-silicon carbide whisker is 2:1. The mass ratio of sodium silicate and sodium citrate is 1:1. USE - The additive is useful for powder coating. ADVANTAGE - The additive has excellent wear resistance, improves the hardness of the coating surface, and reduces the friction. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation method of additive, which involves dispersing graphite oxide in absolute ethanol in ratio of 120 g:350 ml to prepare graphite oxide dispersion liquid, adding nano-graphene to graphene oxide dispersion liquid, uniformly stirring, then adding sodium silicate and sodium citrate and grinding for 2 hours.