Preparation of an ionic liquid-modified zinc sulfide nano-extreme pressure anti-wear agent and energy-saving anti-wear hydraulic oil containing the anti-wear agent

Abstract

The invention belongs to the field of anti-wear hydraulic oil and especially relates to preparation of an ionic liquid modified zinc sulfide nano extreme pressure anti-wear agent and energy-saving anti-wear hydraulic oil with the anti-wear agent. The preparation method includes the steps of: 1) in 100 ml of an ethanol / water mixture solvent with volume ratio of ethanol to water being 1:1, adding a certain amount of a 1-ethyl-3-dodecylimidazolediethylphosphonate ionic liquid, adding a Na2S water solution to perform a reaction, and dropwise adding a completely dissolved Zn(Ac)2 water solution; 2) after the reaction is finished, filtering and washing a reaction product, drying the reaction product in a vacuum drying box to obtain a white powder, and dispersing the white powder in basic oil to obtain an ionic liquid modified zinc sulfide dispersion liquid; and 3) adding the ionic liquid modified zinc sulfide dispersion liquid to the basic oil with addition of an antioxidant, an anti-rust agent, a viscosity index improver, a pour point depressant and a defoamer, thereby producing the energy-saving anti-wear hydraulic oil which has excellent anti-wear, anti-rust and anti-corrosion properties. The product reaches international leading level.

Description

technical field [0001] The invention belongs to the field of anti-wear hydraulic oil, and in particular relates to the preparation of a zinc sulfide nano extreme pressure anti-wear agent modified by ionic liquid and the energy-saving anti-wear hydraulic oil containing the anti-wear agent. Background technique [0002] In the middle of the 20th century, with the rise of modern industry in western countries, hydraulic technology was widely used, and hydraulic oil was also produced; in the 1970s, hydraulic equipment with high pressure, high speed and high power compatible with modern large-scale industry was quite common; Some equipment has abnormal phenomena during daily operation, and the original hydraulic oil can no longer meet the requirements of harsh working conditions after inspection. For oil products in working condition, under the action of temperature and pressure, the physical adsorption film formed only by base oil can no longer guarantee the safe lubrication of h...

AI Technical Summary

Problems solved by technology

[0002] In the middle of the 20th century, with the rise of modern industry in western countries, hydraulic technology was widely used, and hydraulic oil was also produced; by the 1970s, hydraulic equipment with high pressure, high speed and high power compatible with modern large-scale industries had become quite common; Some equipment has abnormal phenomena during daily operation, and it is found that the original hydraulic oil can no longer meet the requirements of harsh working conditions.

[0003] However, traditional extreme pressure antiwear agents face the above-mentioned environmental protection problems, and have poor multifunctionality, anti-oxidation, anti-cleaning properties, and weak repair functions.

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