▎ 摘　　要

NOVELTY - Nano-silicon dioxide modified B, N co-doped oxidized graphene lubricant comprises 0.2-1 wt.% oleic acid, 0.1-1 wt.% triethanolamine borate, 0.5-3 wt.% dodecanol, 0.5-3 wt.% sodium hexametaphosphate, 0.15-0.85 wt.% silicon dioxide modified B, N-co-doped oxide graphene and deionized water (remaining amount). USE - Used as nano-silicon dioxide modified B, N co-doped oxidized graphene lubricant. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the lubricant, comprising (i) adding dodecanol, triethanolamine borate, oleic acid and hexametaphosphate into deionized water, heating and stirring to obtain base liquid; and (ii) adjusting the pH of the base liquid to 7-8, adding silicon dioxide modified B, N co-doped oxide graphene heating and stirring, and ultrasonic processing.