Water-based lubricating cutting fluid and preparation method thereof

Abstract

The invention discloses water-based lubricating cutting fluid. The water-based lubricating cutting fluid is prepared from the following raw materials in parts by weight: 2 to 3 parts of ammonium polyphosphate, 0.7 to 1 part of sodium diacetate, 1 to 2 parts of benzyl butyl phthalate, 0.2 to 0.3 part of copper sulfate, 10 to 17 parts of styrene, 3 to 4 parts of maleic anhydride, 0.1 to 0.2 part of benzoyl peroxide, 5 to 7 parts of nano silicon dioxide, 1 to 2 parts of propynol, 0.4 to 1 part of sodium nitride, 0.6 to 1 part of aluminum chloride, 2 to 3 parts of Span 80, 0.7 to 1 part of a silane coupling agent kh560, 0.1 to 0.2 part of sodium ascorbate, 0.6 to 1 part of 2,3-dimethylaniline, 3 to 4 parts of sorbitan monooleate, 1 to 2 parts of benzyltriphenylphosphonium chloride, 0.6 to 1 part of stannous sulfate, 2 to 3 parts of sorbitol and 0.6 to 1 part of formamide. According to the water-based lubricating cutting fluid provided by the invention, unsaturated residual bonds and hydroxyl groups with different bonding states on the surface of the nano silicon dioxide enable the surface to have very high surface activity; the nano silicon dioxide is easy to deposit on a metal friction surface, and the lubricating property of the cutting fluid is improved.

Description

technical field [0001] The invention relates to the technical field of cutting fluid, in particular to a water-based lubricating cutting fluid and a preparation method thereof. Background technique [0002] Due to its three-dimensional network structure, excellent stability, reinforcement and thickening properties, low price, and easy preparation, nano-silica is widely used in cutting fluids to improve the load-bearing and anti-corrosion capabilities of cutting fluids. Nano-silica has a large specific surface area and high specific surface energy. It is easy to agglomerate in the cutting fluid to form secondary particles, resulting in a decrease in the performance of strengthening and toughening. At the same time, the hydroxyl group on the surface also strengthens this phenomenon. Therefore, improving the dispersibility of nano-silica in cutting fluid is an urgent problem to be solved; [0003] Physical blending, chemical grafting and other methods can be used to enhance th...

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Problems solved by technology

Some grafted PS and PSMA on the surface of nano-silica by in-situ free radical polymerization to prepare amphiphilic nano-silica, and some used dimethyldichlorosilane dry process to prepare nano-silica with better dispersion Silicon oxide, some polycondensation reactions on the surface of nano-silica through polyethylene glycol and sebacic acid, improve the dispersion of nano-silica, and some use "click" chemistry combined with RAFT and ATRP polymerization in Grafting polyacrylamide and polystyrene on the surface of the particles improves the dispersion of the particles. The current study found that surface grafting of polymers is the most effective way to improve the dispersion of nano-silica, but grafting often occurs in the research The functional group of the reaction is only located at one end of the molecular chain, and there are few reports on the molecular chain containing multiple functional groups;

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