Modified graphene and application thereof in lubricating oil

A technology of graphene and lubricating oil, which is applied in the field of lubricating oil, can solve the problems of poor dispersion of graphene, achieve the effects of improving lubrication state, high thermal conductivity, and low friction coefficient

Inactive Publication Date: 2018-11-02
钦州市窑宝坭兴陶艺有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem of poor graphene dispersion, the present invention provides a modified graphene-based and its application in lubricating oil

Method used

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  • Modified graphene and application thereof in lubricating oil

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A modification method of graphene for lubricating oil, comprising the steps of:

[0025] (1) Add graphene oxide, ethanol and polyethylene glycol with a ratio of 1g:8mL:1mL into the ultrasonic reactor, and ultrasonically stir at room temperature for 1.5h to obtain a graphene dispersion;

[0026] (2) In the graphene dispersion, add a modifier consisting of coconut acid diethanolamide, octaphenyl clathrate silsesquioxane and rare earth coupling agent with a mass ratio of 2:1:1, the The addition of modifying agent is 4% of graphene weight, continues to carry out ultrasonic stirring and carries out surface modification, obtains modified mixed solution;

[0027] (3) After the modified mixed solution is filtered, the solvent is recovered and dried to obtain the modified graphene.

[0028] The application of the modified graphene in lubricating oil, the lubricating oil includes the following raw materials in parts by weight: 120 parts of PAO base oil, 1.2 parts of modified gra...

Embodiment 2

[0031] A modification method of graphene for lubricating oil, comprising the steps of:

[0032] (1) Add graphene oxide, ethanol and polyethylene glycol at a ratio of 1g:5mL:1.5mL into an ultrasonic reactor, and ultrasonically stir for 2 hours at room temperature to obtain a graphene dispersion;

[0033] (2) In the graphene dispersion, add a modifier consisting of coconut acid diethanolamide, octaphenyl clathrate silsesquioxane and rare earth coupling agent with a mass ratio of 1:1:1, the The addition of the modifier is 3% of the graphene weight, and the ultrasonic stirring is continued for surface modification to obtain a modified mixed solution;

[0034] (3) After the modified mixed solution is filtered, the solvent is recovered and dried to obtain the modified graphene.

[0035] The application of the modified graphene in lubricating oil, the lubricating oil includes the following raw materials in parts by weight: 150 parts of PAO base oil, 1.5 parts of modified graphene, 0...

Embodiment 3

[0038] A modification method of graphene for lubricating oil, comprising the steps of:

[0039] (1) Add graphene oxide, ethanol and polyethylene glycol at a ratio of 1g:10mL:0.5mL into an ultrasonic reactor, and ultrasonically stir for 1 hour at room temperature to obtain a graphene dispersion;

[0040] (2) In the graphene dispersion, add a modifier consisting of coconut acid diethanolamide, octaphenyl clathrate silsesquioxane and rare earth coupling agent with a mass ratio of 3:1:0.5, said The addition of modifying agent is 4.5% of graphene weight, continues to carry out ultrasonic stirring and carry out surface modification, obtains modified mixed solution;

[0041] (3) After the modified mixed solution is filtered, the solvent is recovered and dried to obtain the modified graphene.

[0042] The application of the modified graphene in lubricating oil, the lubricating oil includes the following raw materials in parts by weight: 100 parts of 500SN base oil, 0.5 part of modifi...

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Abstract

The invention discloses modified graphene and application thereof in lubricating oil. The modified graphene is modified by virtue of coco fatty acid diethanol amide, octaphenyl caged sesquisiloxane and a rare-earth coupling agent. The modified graphene is applied to the lubricating oil, and the lubricating oil is prepared from the following raw materials in parts by weight: 100 to 150 parts of basic oil, 0.5 to 2 parts of modified graphene, 0.1 to 0.5 part of silicon carbide, 1 to 3 parts of polysiloxane aminoester acrylate, 0.5 to 2 parts of succinate sulfonated hydrogenated castor oil, 1 to3 parts of oleic acid diethanolamide borate, 0.5 to 1.5 parts of defoaming agent and 1 to 2 parts of antioxidant. The lubricating oil has excellent compatibility and stability, low friction coefficient, high heat conduction coefficient and good effect for protecting mechanical parts, and can prolong the service life of the mechanical parts.

Description

technical field [0001] The invention relates to the technical field of lubricating oil, in particular to a kind based on modified graphene and its application in lubricating oil. 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] The addition of nanomaterials (such as carbon nanotubes, graphene, fullerene, and graphite nanosheets) to lubricants can improve the tribological properties of lubricants. This is a rapidly developing emerging field. Gra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M125/02C10M169/04C10N30/06C10N30/04
CPCC10M125/02C10M169/044C10M2201/10C10M2201/14C10M2205/0206C10M2217/06C10M2219/044C10M2227/061C10M2229/047C10M2229/052C10N2030/04C10N2030/06
Inventor 翟毅
Owner 钦州市窑宝坭兴陶艺有限公司
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