▎ 摘　　要

NOVELTY - Plant lubricating oil comprises 150-200 pts. wt. castor oil, 3-5 pts. wt. graphene-polymer fiber, 0.2-0.3 pts. wt. liquid graphene, 0.5-1.5 pts. wt. isooctyl-3-(3,5 di-tert-butyl-hydroxyphenyl)propionate, 1-3 pts. wt. polyisobutylene bissuccinimide, 3-5 pts. wt. 1-hexyl-3-methylimidazolium tetrafluoroborate, 1-3 pts. wt. polyurethane, 1-3 pts. wt. anti-emulsifier, 1-3 pts. wt. anti-freezing agent and 1-3 pts. wt. anti-corrosion agent. USE - Used as plant lubricating oil. ADVANTAGE - The oil has good lubricity, viscosity-temperature property, low-temperature fluidity, corrosion resistance and good comprehensive performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing plant lubricating oil, comprising adding graphene-polymer fiber, liquid graphene, 1-hexyl-3-methylimidazolium tetrafluoroborate into castor oil, stirring at 500-800 rotations/minute for 10-30 minutes, adding isooctyl-3-(3,5 di-tert-butyl-hydroxyphenyl)propionate, polyisobutylene disuccinimide, polyurethane, anti-emulsifier, anti-freezing agent, anti-corrosion agent, sasol wax , alkyl salicylic acid molybdate, dimethyl glutarate, alkylated diphenylamine and polybutyl acrylate, and stirring the mixture at 3000-5000 rotations/minute for 60-90 minutes.