Environmentally friendly cutting fluid containing graphene and preparation method therefor

Provided is a environmentally friendly cutting fluid containing graphene. The cutting fluid is prepared from the following raw materials, by weight, 2-3 parts of graphene, 1-2 parts of silane coupling agent KH-550, 3-4 parts of vinyl acetate, 4-5 parts of dibutyl phosphate, 10-12 parts of drainage oil, 13-15 parts of propylene glycol, 2-3 parts of zirconium fluoride, 3-4 parts of ricinoleic acid, 1-2 parts of polyoxyethylene octylphenol ether, 1-2 parts of sodium butylnaphthalenesulfonate, 6-8 parts of auxiliary agents and 200 parts of water. Through application of graphene and zirconium fluoride, the lubricating property and abrasion resistance of the cutting fluid are enhanced greatly, and the service life of the cutting fluid is prolonged. Through application of drainage oil, the lubricating property is raised, and the cutting fluid is beneficial for environmental protection. Through application of surfactants, high-molecular monomers, solvents and coupling agents, the cutting fluid is advantaged by stable emulsification and no sedimentation.