Anti-freezing microemulsion cutting fluid and preparation method thereof

Abstract

The invention discloses an anti-freezing microemulsion cutting fluid. The anti-freezing microemulsion cutting fluid is prepared from, by weight, 0.1-0.2 part of stannous sulfate, 0.4-1 part of diphenyl methane diisocyanate, 0.6-1 part of butyl naphthalene sulfonate, 1-2 parts of ammonium aluminum sulfate, 2-4 parts of phosphoric ammonium triacetate, 0.4-1 part of bromohexadecane, 0.3-1 part of tetrabutyl ammonium bromide, 6-7 parts of copper hydroxide, 20-30 parts of 10-15% formic acid water solution, 4-5 parts of carbon nanotubes, 50-60 parts of methyl silicone oil, 3-4 parts of sodium dodecyl sulfate, a proper amount of water, 1-2 parts of glycolic acid, 2-3 parts of microcrystalline wax, 1-2 parts of ethylene glycol, 0.5-1 part of tertiary butyl para-diphenol and 2-3 parts of potassium oleate soap. The esterified carbon nanotubes re mixed with copper formate for ball milling, then Cu<2+> is adsorbed on the surfaces of carbon nanotubes through pyrolysis, and copper nanoparticles are formed on the surfaces of the carbon nanotubes.

Description

technical field [0001] The invention relates to the technical field of cutting fluids, in particular to an antifreeze microemulsion cutting fluid and a preparation method thereof. Background technique [0002] Because nanoparticles have many properties that conventional solids do not have, such as low melting point, high ductility, easy diffusion, etc., their hardness, toughness, shear resistance, etc. may also change, which means that they cannot be used as Solid particles of lubricating materials may have lubricating properties when they are at the nanometer level, and are likely to have some boundary lubrication mechanisms different from traditional additives; secondly, nano-lubricating oil additives replace traditional organic compounds such as S, P, and Cl. Grinding additives are expected to solve the corrosion and environmental problems caused by S, P, and Cl to the base metal; however, some problems need to be solved when applying nanoparticles to cutting fluids to re...

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Problems solved by technology

[0002] Because nanoparticles have many properties that conventional solids do not have, such as low melting point, high ductility, easy diffusion, etc., their hardness, toughness, shear resistance, etc. may also change, which means that they cannot be used as Solid particles of lubricating materials may have lubricating properties when they are at the nanometer level, and are likely to have some boundary lubrication mechanisms different from traditional additives; secondly, nano-lubricating oil additives replace traditional organic compounds such as S, P, and Cl. Grinding additives are expected to solve the corrosion and environmental problems caused by S, P, and Cl to the base metal; however, some problems need to be solved when applying nanoparticles to cutting fluids to reduce friction and wear;

[0003] Due to the large specific surface area and high surface energy of nanoparticles, they are easy to agglomerate in solvents, especially in non-aqueous media such as lubricating oil. If nanoparticles agglomerate into large particles in lubricating oil, it is like oil The same as impurities, it will reduce the performance of lubricating oil." At the same time, the dispersion and stability of nanoparticles are two closely related but independent factors. Good dispersion is not necessarily good stability. In addition, cutting fluids are generally used at high temperatures. 1. Under the high-pressure working environment, the colloidal nanoparticles in the suspension state in the cutting fluid can easily destroy its stability in such a working environment, resulting in agglomeration and coagulation, and finally the nanoparticles lose their anti-wear properties;

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