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Modified graphene lubricating oil and preparation method thereof

A graphene modification and lubricating oil technology, applied in the field of lubricating oil, can solve the problems of poor dispersibility of graphene oxide and can not be used directly, and achieve the effect of maintaining lubricity and viscosity, prolonging life, and good self-cleaning ability

Active Publication Date: 2018-07-13
梧州科润润滑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the dispersibility of graphene oxide in base oil is not good, and it cannot be used directly. It must be modified to achieve the desired effect.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] In parts by weight, 100 parts of base oil, 1 part of polyethylene wax, 0.01 part of 2,6-tert-butyldiphenol, 0.1 part of diphenylamine, 0.1 part of sorbitan fatty acid ester, 0.1 part of simethicone, Add 0.1 part of sodium citrate and 1 part of polyphosphazene-coated graphene oxide into a blender, and stir well to obtain a graphene oxide modified lubricating oil. The stirring rate of the blender is 800r / min, and the stirring time is 30min;

[0029] The preparation method of described polyphosphazene coated graphene oxide is:

[0030] In the reactor, add 0.8 g of hexachlorocyclotriphosphazene, 1.9 g of 4,4'-dihydroxydiphenyl sulfone and 3 ml of triethylamine into 400 ml of acetonitrile, and place it in an ultrasonic water bath at 60°C for 10 hours , then add 100 grams of graphene oxide (average particle size of 500 nanometers) and 600 milliliters of acetonitrile, continue the reaction for 5 hours, after the reaction, centrifuge to remove the solvent, wash the product 3 ti...

Embodiment 2

[0032] In parts by weight, 100 parts of base oil, 3 parts of polyethylene wax, 1 part of 2,6-tert-butyldiphenol, 2 parts of diphenylamine, 1 part of sorbitan fatty acid ester, 1 part of simethicone, Add 2 parts of sodium citrate and 10 parts of polyphosphazene-coated graphene oxide into a blender, and stir well to obtain a graphene oxide modified lubricating oil. The stirring rate of the blender is 800r / min, and the stirring time is 30min;

[0033] The preparation method of described polyphosphazene coated graphene oxide is:

[0034] In the reactor, add 0.8 g of hexachlorocyclotriphosphazene, 1.9 g of 4,4'-dihydroxydiphenyl sulfone and 3 ml of triethylamine into 400 ml of acetonitrile, and place it in an ultrasonic water bath at 60°C for 10 hours , then add 100 grams of graphene oxide (average particle size of 500 nanometers) and 600 milliliters of acetonitrile, continue the reaction for 5 hours, after the reaction, centrifuge to remove the solvent, wash the product 3 times wi...

Embodiment 3

[0036] In parts by weight, 100 parts of base oil, 1 part of polyethylene wax, 0.01 part of 2,6-tert-butyldiphenol, 0.1 part of diphenylamine, 0.1 part of sorbitan fatty acid ester, 0.1 part of simethicone, Add 0.1 part of sodium citrate and 2 parts of polyphosphazene-coated graphene oxide into a blender, and stir well to obtain a graphene oxide modified lubricating oil. The stirring rate of the blender is 800r / min, and the stirring time is 30min;

[0037] The preparation method of described polyphosphazene coated graphene oxide is:

[0038] In the reactor, add 0.8 g of hexachlorocyclotriphosphazene, 1.9 g of 4,4'-dihydroxydiphenyl sulfone and 3 ml of triethylamine into 400 ml of acetonitrile, and place it in an ultrasonic water bath at 60°C for 10 hours , then add 100 grams of graphene oxide (average particle size of 500 nanometers) and 600 milliliters of acetonitrile, continue the reaction for 5 hours, after the reaction, centrifuge to remove the solvent, wash the product 3 t...

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PUM

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Abstract

The invention discloses modified oxidized graphene lubricating oil. The modified oxidized graphene lubricating oil comprises the following preparation raw materials in parts by weight: 100 parts of base oil, 1 to 3 parts of polyethylene wax, 0.01 to 1 part of 2,6-di-tert-butylphenol, 0.1 to 2 parts of diphenylamine, 0.1 to 1 part of sorbitan fatty acid ester, 0.1 to 1 part of dimethicone, 0.1 to 2parts of sodium citrate and 1 to 10 parts of polyphosphazene coated oxidized graphene. The modified oxidized graphene lubricating oil disclosed by the invention is good in compression resistance andabrasion resistance, high in oxidation stability, superhigh in self-repairing capability, and high in leakproofness and self-cleaning capability, thereby having a good market prospect.

Description

technical field [0001] The invention relates to the technical field of lubricating oil, in particular to a graphene-modified lubricating oil and a preparation method thereof. Background technique [0002] With the development of machinery, lubricating oils that reduce friction, reduce wear, cool down, prevent corrosion, insulate, clean and seal are becoming more and more important. The lubricating oil additive is a key part of the lubricating oil, which can make up for the deficiency of the base oil and greatly improve the performance of the lubricating oil. With the development of nanotechnology, the surface modification of nanoparticles is used as lubricating oil additives. The study found that the extreme pressure performance of lubricating oil with nanoparticles added has been greatly improved, and the friction coefficient can also be significantly reduced. [0003] Graphene oxide is less affected by changes in temperature and pressure. Adding it to lubricating oil can...

Claims

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Application Information

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IPC IPC(8): C10M159/12C10M167/00C08G79/025C08G75/23C08K3/04C10N30/04C10N30/06C10N40/25
CPCC08G75/23C08G79/025C08K3/04C10M159/12C10M167/00C10M2201/14C10M2205/14C10M2207/026C10M2207/124C10M2207/289C10M2215/064C10M2229/041C10N2030/04C10N2030/06C10N2040/25C10N2030/54C10N2030/56C10N2010/02
Inventor 韦武才
Owner 梧州科润润滑科技有限公司
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