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Graphene lubricating oil and preparation method thereof

A graphene and lubricating oil technology, applied in the petroleum industry, lubricating compositions, additives, etc., can solve the problems of poor graphene dispersion and wear resistance stability, and achieve improved friction reduction and anti-wear performance, excellent lubrication and Protective performance, strong adsorption effect

Inactive Publication Date: 2019-08-16
SHENYANG JIANZHU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For this reason, the embodiment of the present invention provides a kind of graphene lubricating oil and preparation method thereof, in order to solve the problems of poor dispersion, wear resistance and stability of graphene in lubricants in the prior art

Method used

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  • Graphene lubricating oil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Take 0.0025g of 1-octyl-3-methylimidazolium hexafluorophosphate and 0.01g of graphene and add it to 100g of turbine oil, place it in an ultrasonic breaker after magnetic stirring, and ultrasonicate at 600W for 60min to obtain graphene lubricating oil. Under the action of ultrasound, the degree of graphene powder agglomeration can be reduced, and the anti-wear performance can be greatly improved.

[0021] A multi-functional friction and wear testing machine was used to test the graphene lubricating oil with silicon nitride ceramic ball and bearing steel as the friction pair. The results show that the friction coefficient of the lubricating oil is 0.1191 at a speed of 1500 rpm and a load of 40N, which is 19.42% lower than that of the base oil, and the Zeta potential is 23.54, and there is still no settlement after 25 days of storage, indicating that it has Good dispersion stability.

Embodiment 2

[0023] Take 0.1g of 1-octyl-3-methylimidazolium hexafluorophosphate and 0.075g of graphene and add it to 100g of turbine oil, place it in an ultrasonic breaker after magnetic stirring, and ultrasonicate at 800W for 40min to obtain graphene lubricating oil.

[0024] A multi-functional friction and wear testing machine was used to test the graphene lubricating oil with silicon nitride ceramic ball and bearing steel as the friction pair. The results show that at a speed of 1500 rpm and a load of 80N, the friction coefficient of the graphene lubricating oil is 0.1249, which is 15.49% lower than that of the base oil, and the Zeta potential is 29.54, and there is still no sedimentation after 26 days of storage. It shows good dispersion stability.

Embodiment 3

[0026] Take 0.0001g of 1-hexyl-3-methylimidazolium tetrafluoroborate and 0.01g of graphene and add it to 100g of turbine oil, place it in an ultrasonic breaker after magnetic stirring, and ultrasonicate for 90min at 700W to obtain graphene lubricating oil.

[0027] A multi-functional friction and wear testing machine was used to test the graphene lubricating oil with silicon nitride ceramic ball and bearing steel as the friction pair. The results show that at a speed of 500 rpm and a load of 80N, the friction coefficient of the graphene lubricating oil is 0.0998, which is 31.45% lower than that of the base oil, and the Zeta potential is 21.89, and there is still no sedimentation after 21 days of storage. It shows good dispersion stability.

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Abstract

The embodiments of the invention disclose graphene lubricating oil. The graphene lubricating oil is formed by mixing an ionic liquid, graphene and base oil, wherein a mass ratio of the ionic liquid tothe base oil is 0.0001%-1%; and a mass ratio of the graphene to the base oil is 0.001%-1%. According to the lubricating oil provided by the embodiments of the invention, after the graphene and the ionic liquid are added, the graphene is uniformly and firmly adhered to the surface of a metal to form a film having excellent lubrication and protective properties, and the graphene has very strong adsorption effects on the ionic liquid, so that the antifriction and anti-wear performance of the lubricating oil can be significantly improved, and the bearing capacity of lubricating oil can be improved.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of lubricating oil preparation, in particular to a graphene lubricating oil and a preparation method thereof. Background technique [0002] The study of tribology is of great significance to the national economy. Under the severe situation of increasing resource, energy and environmental problems in the world, controlling friction, reducing wear and improving lubrication performance have become important measures to save energy and raw materials and shorten maintenance time . In the environment where my country is vigorously promoting energy conservation and emission reduction and establishing a sustainable society, the exploration and development of environmentally friendly lubricating oils will provide reliable support for high-performance and industrialized large-scale related industries and green manufacturing. solutions to effectively promote economic and social development. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10M141/06C10N30/06
CPCC10M141/06C10M169/04C10M2201/041C10M2201/085C10M2201/087C10M2203/1006C10M2205/0206C10M2205/163C10M2215/224C10M2219/044C10N2030/06C10N2030/56
Inventor 魏晓奕张丽秀赵越王丽艳王俊海
Owner SHENYANG JIANZHU UNIVERSITY
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