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High-dispersibility de-valence electron modified graphene lubricant and preparation method thereof

A technology of dispersion performance and graphene, applied in the petroleum industry, lubricating compositions, additives, etc., can solve the problems of lubricating oil dispersibility and stable point not being satisfactorily solved, easy stacking of lamellae, weak interaction, etc. Achieve the effect of improving the micro mixing rate, good heat dissipation, and improving anti-wear and anti-friction performance

Inactive Publication Date: 2016-12-14
CHONGQING DELING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high chemical stability of graphene and its derivatives, the surface is in an inert state, the interaction with other media is weak, and there is a strong intermolecular force between the graphene sheets, which makes the sheets easily stacked on the surface. It is difficult to disperse together, so the problem of its dispersion and stability in lubricating oil has not been satisfactorily resolved

Method used

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  • High-dispersibility de-valence electron modified graphene lubricant and preparation method thereof
  • High-dispersibility de-valence electron modified graphene lubricant and preparation method thereof
  • High-dispersibility de-valence electron modified graphene lubricant and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Take 0.3 part of graphene oxide modified by polyoxypropylene group, 0.5 part of fatty acid glyceride, 0.2 part of acrylate-alkyl acrylate copolymer, 1 part of basic zinc salt of phosphobisoctyl, and gradually add to 100 parts of synthetic basis In the oil, stir at 1000r / min at a high speed for 0.5h, and then stir the resulting mixture at 250r / min while ultrasonically oscillating at an ultrasonic frequency of 20kHz and a power of 200W for 1h.

Embodiment 2

[0028] Take 1 part of graphene oxide modified by long-chain perfluoroalkyl, 0.6 part of fatty acid glyceride, 0.3 part of acrylate-alkyl acrylate copolymer, 3 parts of sulfur phosphorus bis-octyl basic zinc salt, and gradually add to 100 parts In the synthetic base oil, stir at a high speed of 1000r / min for 0.5h, and then stir the resulting mixture at 250r / min while ultrasonically oscillating at an ultrasonic frequency of 100kHz and a power of 300W for 1.5h.

Embodiment 3

[0030] Take 5 parts of graphene oxide modified by polysiloxane group, 0.7 part of fatty acid glyceride, 0.4 part of dimethyl silicone oil, 5 parts of sulfur phosphorus bis-octyl basic zinc salt, and gradually add them to 100 parts of synthetic base oil. Stirring at a high speed of 1000r / min for 0.5h, and then stirring the obtained mixture at 300r / min while ultrasonically oscillating at an ultrasonic frequency of 400kHz and a power of 400W for 1.5h.

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PUM

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Abstract

The invention relates to high-dispersibility de-valence electron modified graphene lubricant and a preparation method thereof. The lubricant is made from de-valence electron modified graphene, a dispersant, an anti-foaming agent, a preservative and basic oil, wherein the 0.3-1.5 parts of the de-valence electron modified graphene is used; the preparation method of the lubricant includes the steps of (1), adding the de-valence electron modified graphene, dispersant, anti-foaming agent and preservative gradually into the basic oil, and stirring well; (2), stirring a mixture of step (1) while ultrasonic vibration. The de-valence electron modified graphene in the lubricant is dispersed evenly, excellent antifriction effect can be provided, and the lubricant is imparted good mechanical protection and excellent stability and antioxidant property.

Description

technical field [0001] The invention belongs to the field of high-tech materials and applications thereof, and in particular relates to a devalent electron modified graphene lubricating oil with good dispersion performance and a preparation method thereof. Background technique [0002] Friction phenomena widely exist in mechanical motion, resulting in energy loss, efficiency reduction, temperature rise, surface wear, performance degradation, and shortened life of the machine. Among the failed machines, about 75% are caused by the wear of friction pairs. , The energy loss caused by friction and the material consumption caused by wear have caused huge economic losses. Lubricating oil is one of the important means to effectively slow down the friction and wear of mechanical parts. It is suitable for various types of automobiles and mechanical equipment, and has the functions of lubrication, cooling, rust prevention, sealing and buffering. Lubricating oil generally consists of ...

Claims

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Application Information

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IPC IPC(8): C10M125/02C10M161/00C10M177/00C10N30/04C10N30/06C10N30/10
CPCC10M125/02C10M161/00C10M177/00C10M2201/041C10M2201/14C10M2207/281C10M2209/084C10M2223/045C10M2229/041C10N2030/04C10N2030/06C10N2030/10
Inventor 罗廷军
Owner CHONGQING DELING TECH
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