Lubricating oil anti-wear additive based on fewer-layer graphene nanoplatelets and preparation method thereof

A graphene micro-sheet, lubricating oil technology, applied in the directions of additives, petroleum industry, lubricating compositions, etc., can solve the problems of effective weight reduction, condensation, precipitation, inability to lubricate and protect equipment, and achieve easy precipitation, improve lubrication and Effects of antiwear and extreme pressure properties, good stability and precipitation resistance

Inactive Publication Date: 2016-11-23
陈小刚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current extreme pressure and anti-wear additives on the market stay in the lubricating oil for too long, and it is easy to mix with other additives to cause coagulation and preci

Method used

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Examples

Experimental program
Comparison scheme
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Example Embodiment

[0015] An anti-wear additive for lubricating oil based on few-layer graphene flakes, which is composed of the following raw materials in weight percentage: few-layer graphene flakes 0.0001-5%, wetting agent 0.001-5%, emulsifier 0.0-0.5%, Dispersant 3-5%, detergent 3-5%, pour point depressant 1-2.5%, the balance is base oil.

[0016] The number of layers of the few-layer graphene microplatelets is between 10-30 layers, and the thickness of the few-layer graphene microplatelets is 1-10 nanometers.

[0017] Among the few-layer graphene microplatelets, 99.5% of the few-layer graphene microplatelets have a particle size thickness of less than 5 nanometers, and the remaining 5% of the few-layer graphene microplatelets have a particle size thickness of less than 10 nanometers.

[0018] The wetting agent is petroleum ether, the emulsifier is sorbitan fatty acid ester, the dispersant is sodium tripolyphosphate, the detergent is calcium alkyl salicylate, and the pour point depressant is Polym...

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Abstract

The invention discloses and provides a lubricating oil anti-wear additive based on fewer-layer graphene nanoplatelets and a preparation method thereof. The lubricating oil anti-wear additive has good stability and precipitation resistance and can effectively improve wear resistance and extreme pressure resistance. The lubricating oil anti-wear additive based on the fewer-layer graphene nanoplatelets is prepared from, by weight, 0.0001-5% of fewer-layer graphene nanoplatelets, 0.001-5% of a wetting agent, 0.0-0.5% of an emulsifying agent, 3-5% of a dispersing agent, 3-5% of a clearing agent, 1-2.5% of a pour point reducer and the balance base oil. The lubricating oil anti-wear additive is applicable to the field of production and application of lubricating oil additives.

Description

technical field [0001] The invention relates to a lubricating oil anti-wear additive based on few-layer graphene microsheets and a preparation method thereof. Background technique [0002] The operation of modern equipment is inseparable from lubricating oil, and lubricating oil cannot be separated from lubricating oil additives. Lubricating oil additives are the essence of various modern high-grade lubricating oils. According to statistics, about 30% of the energy in the operation of the equipment is consumed in the friction of the internal parts of the equipment, and 80% of the damage to the parts in the equipment is caused by the wear between the parts. Therefore, improving the performance of lubricating oil to reduce friction and wear between equipment parts and prevent sintering is of great significance to the national economy. The most commonly used additives in lubricating oils are extreme pressure anti-wear additives, which are used to improve the tribological prope...

Claims

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Application Information

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IPC IPC(8): C10M167/00C10M125/02C10N30/06
CPCC10M125/02C10M167/00C10M2201/041C10M2201/085C10M2203/102C10M2207/144C10M2207/283C10M2209/084C10N2030/06C10N2030/64
Inventor 陈小刚
Owner 陈小刚
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