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Anti-wear, anti-friction and stable-dispersion lubricating oil or lubricating grease and preparation method thereof

A technology for stable dispersion and lubricating oil, applied in lubricating compositions, petroleum industry, additives, etc., can solve problems such as weak correlation, achieve reduced wear, significant operating comfort, long-term dispersion stability and complex environment dispersion stability Sex-enhancing effects

Active Publication Date: 2020-10-23
GUANGXI LIUGONG MASCH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current existing technology usually only uses four balls to evaluate the friction coefficient, which is only the dynamic friction coefficient, and the correlation with the actual application conditions is not strong. It is not known whether the comprehensive friction performance for the actual application is good.

Method used

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  • Anti-wear, anti-friction and stable-dispersion lubricating oil or lubricating grease and preparation method thereof
  • Anti-wear, anti-friction and stable-dispersion lubricating oil or lubricating grease and preparation method thereof
  • Anti-wear, anti-friction and stable-dispersion lubricating oil or lubricating grease and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] This embodiment provides a hydraulic oil with anti-wear, anti-friction and dispersion stability properties, which is HM-46 hydraulic oil added with docosyl chain-branched sulfonated graphene. Wherein, the added quality of the sulfonated graphene of docosyl chain branch is 0.03% of HM-46 hydraulic oil; for 23.

[0047] Its preparation method is:

[0048] (1) Stir and disperse the sulfonated graphene of eicosyl chain branch in the base oil of HM-46 hydraulic oil, make graphene additive, mass fraction is 5%, dispersion time is 20min, and heating temperature is 30 °C, the stirring speed is 3000r / min;

[0049] (2) Mix the graphene additive prepared in step (1) with HM-46 hydraulic oil, stir and distribute, and disperse for 40 min at 100 r / min to obtain the anti-wear, friction-reducing and stable dispersion hydraulic oil.

Embodiment 2

[0051] This embodiment provides a transmission oil with anti-wear, anti-friction and dispersion stability properties, which is No. 8 hydraulic transmission oil added with docosyl chain-branched sulfonated graphene. Wherein, the added quality of the sulfonated graphene branched by docosyl chain is 0.02% of No. 8 hydraulic transmission oil; The ratio is 23.

[0052] Its preparation method is:

[0053] (1) the sulfonated graphene pulse of eicosyl chain branch is dispersed in the base oil of No. 8 hydraulic transmission oil, makes graphene additive, and mass fraction is 5%, and dispersion time is 20min, and heating temperature is 30°C, the stirring speed is 3000r / min;

[0054] (2) Mix the graphene additive prepared in step (1) with No. 8 hydraulic transmission oil, pulse disperse, and disperse for 40 min at 100 r / min to obtain the anti-wear, friction-reducing and stable-dispersion hydraulic transmission oil.

Embodiment 3-10

[0056] This embodiment provides eight kinds of hydraulic oils with anti-wear, anti-friction and dispersion stability properties, which are HM-46 hydraulic oils added with sulfonated graphene branched by long carbon straight chains. In Examples 3-10, the mass ratios of carbon elements and sulfur elements in the sulfonated graphene grafted with long carbon direct chains are 10, 15, 17, 19, 25, 30, 35, and 40 in sequence. For the preparation method, refer to the method in Example 1.

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Abstract

The invention relates to an anti-wear, anti-friction and stable-dispersion lubricating oil or lubricating grease. The anti-wear, anti-friction and stable-dispersion lubricating oil or lubricating grease comprises a lubricating oil or lubricating grease main component and long carbon chain grafted sulfonated graphene. A preparation method of the anti-wear, anti-friction and stable-dispersion lubricating oil or lubricating grease comprises the following steps: mixing the lubricating oil or lubricating grease main component with the long carbon chain grafted sulfonated graphene, stirring, and dispersing to obtain the lubricating oil or lubricating grease. According to the lubricating oil or lubricating grease provided by the invention, the long carbon chain grafted sulfonated graphene is added into the main components, so the long-term dispersion stability and the complex environment dispersion stability of the lubricating oil or lubricating grease are remarkably improved, the friction coefficient can be remarkably improved, the wear resistance and friction reduction performance of the lubricating oil or lubricating grease can be remarkably improved, the wear spot diameter is reduced,and the wear of copper and iron is reduced.

Description

technical field [0001] The invention belongs to the technical field of modified lubricating oil, in particular relates to a lubricating oil or grease and a preparation method thereof, in particular to a lubricating oil or lubricating grease which is anti-wear, friction-reducing and stable in dispersion and a preparation method thereof. Background technique [0002] Friction and wear are ubiquitous in nature, and friction and wear are one of the main reasons for the scrapping of materials and equipment. Therefore, people use various methods including lubricating oil or grease to reduce friction and wear. In order to improve the lubricating performance of lubricating oil or lubricating grease, new additives are often introduced into lubricating oil or lubricating grease. At present, there are two main categories of anti-wear and anti-friction additives. One is oil-soluble additives, such as oily agents containing polar groups. , fatty acids, fatty acid esters, organic amides, ...

Claims

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Application Information

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IPC IPC(8): C10M135/10C10M169/04C10M177/00C10N30/06C10N50/10C10N30/04
CPCC10M135/10C10M169/04C10M177/00C10M2201/14C10M2201/041C10M2219/044C10N2030/06C10N2050/10C10N2040/08C10N2040/04C10N2040/042C10N2010/04C10N2010/02C10M2217/0456C10M2229/006C10M2211/006C10N2070/00C10M125/02C10M169/00C10M2203/003C10N2040/25
Inventor 林博罗金琼张丽万晓娜林明智罗维冯治恒陈宏
Owner GUANGXI LIUGONG MASCH CO LTD
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