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Lubricating oil additive as well as preparation method and application thereof

A lubricating oil additive and reaction technology, applied in the direction of additives, lubricating compositions, petroleum industry, etc., can solve the problems of poor dispersion stability of inorganic nanoparticles, achieve the effects of improving oxidation resistance, reducing stacking, and improving dispersion performance

Active Publication Date: 2022-05-13
王旭锋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a lubricating oil additive and its preparation method and application, to solve the technical problem of poor dispersion stability of inorganic nanoparticles in lubricating oil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method for lubricating oil additives, comprising the steps of:

[0025] (1) Preparation of modified silica: Disperse 5g of nano-silica in 300g of deionized water, then add 50g of silane coupling agent A-1110, react at 40°C for 4h, after the reaction is completed, centrifuge and wash , to obtain modified silica;

[0026] (2) Preparation of hydroxylated boron nitride: add 10g of hexagonal boron nitride to 200g, 25wt% sodium hydroxide solution, carry out stirring reaction in an oil bath at 110°C for 6h, and wash the reaction product after the reaction is completed , dry to obtain hydroxylated boron nitride;

[0027] (3) Prepare lubricating oil additive: 4g modified silicon dioxide, 8g modified boron nitride and 20g phenylhydrazine are added in 200mL mixed solvent, the volume ratio of ethanol and water in the mixed solvent is 8: 2, stir evenly, Then add 15g of silane coupling agent KH560 therein, react at 50°C for 4h, after the reaction is finished, centrifu...

Embodiment 2

[0029] A preparation method for lubricating oil additives, comprising the steps of:

[0030] (1) Preparation of modified silica: Disperse 5g of nano-silica in 300g of deionized water, then add 60g of silane coupling agent A-1120, react at 50°C for 4h, after the reaction is completed, centrifuge and wash , to obtain modified silica;

[0031] (2) Preparation of hydroxylated boron nitride: add 10g of hexagonal boron nitride to 200g, 25wt% sodium hydroxide solution, carry out stirring reaction in an oil bath at 120°C for 8h, and wash the reaction product after the reaction is completed , dry to obtain hydroxylated boron nitride;

[0032] (3) Preparation of lubricating oil additive: 6g modified silicon dioxide, 10g modified boron nitride and 25g phenylhydrazine are added in 200mL mixed solvent, the volume ratio of ethanol and water in the mixed solvent is 8: 2, stir evenly, Then add 18g of silane coupling agent KH560 to it, react at 50°C for 4h, after the reaction is finished, ce...

Embodiment 3

[0034] A preparation method for lubricating oil additives, comprising the steps of:

[0035] (1) Preparation of modified silica: Disperse 5g of nano-silica in 300g of deionized water, then add 60g of silane coupling agent KH560, react at 60°C for 5h, centrifuge and wash to obtain Modified silica;

[0036] (2) Preparation of hydroxylated boron nitride: add 10g of hexagonal boron nitride to 200g, 25wt% sodium hydroxide solution, carry out stirring reaction in an oil bath at 140°C for 6h, and wash the reaction product after the reaction is completed , dry to obtain hydroxylated boron nitride;

[0037] (3) Preparation of lubricating oil additive: 6g modified silicon dioxide, 8g modified boron nitride and 30g phenylhydrazine are added in 200mL mixed solvent, the volume ratio of ethanol and water in the mixed solvent is 8: 2, stir evenly, Then add 20g of silane coupling agent KH560 therein, react at 50°C for 4h, after the reaction is finished, centrifuge and wash to obtain the lub...

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PUM

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Abstract

The invention discloses a lubricating oil additive and a preparation method and application thereof.The lubricating oil additive is prepared from modified silicon dioxide, modified boron nitride and phenylhydrazine, nano-silicon dioxide is modified, amino is introduced to the surface of nano-silicon dioxide, then boron nitride is subjected to hydroxylation modification, hydroxyl is introduced to the surface of boron nitride, and the surface of the boron nitride is subjected to hydroxylation modification; according to the preparation method disclosed by the invention, the modified silicon dioxide, the modified boron nitride and the phenylhydrazine are coupled and chemically bonded together through a silane coupling agent instead of simple physical mixing, and the silicon dioxide nanoparticles are stably bonded on the surfaces of the boron nitride lamellas, so that the stacking of the boron nitride lamellas is effectively reduced; and the defect that the traditional inorganic nano material is easy to accumulate and settle in the lubricating oil is overcome.

Description

technical field [0001] The invention relates to the technical field of lubricating oil preparation, in particular to a lubricating oil additive and its preparation method and application. Background technique [0002] Lubricating oil is a liquid or semi-solid lubricant used in automobiles and mechanical equipment to reduce friction and protect machinery and processed parts. It mainly plays the roles of lubrication, cooling, rust prevention, cleaning, sealing and buffering. Lubricating oil is composed of base oil and additives. Base oil is the main component of lubricating oil and determines the basic properties of lubricating oil. Additives can make up for and improve the performance of base oil and endow some new properties. An important component of oil. [0003] Nanomaterial is a kind of low-dimensional material. Due to the superfineness of the material, the atoms in the surface layer occupy a large proportion, so the nanomaterial is actually a combination of long-range ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M141/06C10N30/04C10N30/06C10N30/10
CPCC10M141/06C10M2201/105C10M2201/061C10M2215/18C10M2201/14C10N2030/04C10N2030/10C10N2030/06
Inventor 王旭锋
Owner 王旭锋
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