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Preparation method of graphene lubricating oil for vehicles

A graphene and lubricating oil technology, applied in the petroleum industry, lubricating compositions, additives, etc., can solve problems such as difficulty in starting, poor lubricating oil fluidity, poor low temperature fluidity, etc. The effect of flow properties

Inactive Publication Date: 2020-09-04
青岛鑫乐驰润滑油有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main function of the lubricating oil for vehicles is to reduce the mechanical friction between the parts of the car body, reduce loss, absorb the heat generated by friction, and have the effect of cooling and cooling. The lubricating oil can also form a protective oil film on the surface of the car body parts to prevent air And the erosion of various moisture to prevent oxidation and rust. However, many existing vehicle lubricating oils have poor low-temperature fluidity in cold winters, and poor low-temperature fluidity of lubricating oils will cause difficulty in starting mechanical equipment at low temperatures. , it is difficult to carry out normal operation work, therefore, the invention provides a kind of preparation method of graphene lubricating oil for vehicles, the method is simple and can be widely popularized and used in industry, and the graphene lubricating oil that utilizes this method to prepare effectively solves the problem of Solved the problem of poor fluidity of lubricating oil at low temperature, greatly improved the low temperature resistance of lubricating oil, and made lubricating oil have good low temperature fluidity and lubricating performance

Method used

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  • Preparation method of graphene lubricating oil for vehicles
  • Preparation method of graphene lubricating oil for vehicles
  • Preparation method of graphene lubricating oil for vehicles

Examples

Experimental program
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Effect test

Embodiment 1

[0021] A preparation method of graphene lubricating oil for vehicles, comprising the following preparation steps:

[0022] (1) Modification of graphene: first prepare an acidic mixed solution according to the following parts by volume, mix 4 parts of sorbitan fatty acid esters, 5 parts of methacrylic acid and 10 parts of boric acid, stir and mix for 40 minutes at 50 ° C, to obtain The acidic mixed solution is then cooled to normal temperature, then added to dehydrated alcohol 5 times its weight, stirred evenly, graphene, calcium linoleate, and methyl linolenate are added to the above mixed solution, and the temperature is raised to 75°C, keep warm and stir for 2.5h, stir evenly, spin evaporate, remove ethanol to obtain sample liquid, then use high-purity deionized water to wash the sample liquid, filter, and dry to obtain modified graphene;

[0023] (2) Preparation of nano-lubricating oil: use the second-class base oil 150N without additives as the base oil liquid, add nano-Si...

Embodiment 2

[0032] A preparation method of graphene lubricating oil for vehicles, comprising the following preparation steps:

[0033] (1) Modification of graphene: first prepare an acidic mixed solution according to the following parts by volume, mix 5 parts of sorbitan fatty acid esters, 7 parts of methacrylic acid and 12 parts of boric acid, stir and mix at 56 ° C for 35 min to obtain The acidic mixed solution is then cooled to normal temperature, then added to 5.5 times of its weight in absolute ethanol, stirred evenly, graphene, calcium linoleate, and methyl linolenate are added to the above mixed solution, and the temperature is raised to 78°C, heat preservation and stirring for 2.5 hours, stir evenly, rotary steaming, remove ethanol to obtain a sample liquid, and then use high-purity deionized water to wash the sample liquid, filter, and dry to obtain modified graphene;

[0034] (2) Preparation of nano-lubricating oil: use the second-class base oil 150N without additives as the bas...

Embodiment 3

[0043] A preparation method of graphene lubricating oil for vehicles, comprising the following preparation steps:

[0044](1) Modification of graphene: first prepare an acidic mixed solution according to the following parts by volume, mix 6 parts of sorbitan fatty acid esters, 8 parts of methacrylic acid and 15 parts of boric acid, stir and mix at 60 ° C for 30 min, to obtain The acidic mixed solution is then cooled to normal temperature, then added to 6 times its weight in absolute ethanol, stirred evenly, graphene, calcium linoleate, and methyl linolenate are added to the above mixed solution, and the temperature is raised to 80°C, heat preservation and stirring for 2.5 hours, stir evenly, rotary steaming, remove ethanol to obtain a sample liquid, and then use high-purity deionized water to wash the sample liquid, filter, and dry to obtain modified graphene;

[0045] (2) Preparation of nano-lubricating oil: use the second-class base oil 150N without additives as the base oil...

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Abstract

The invention discloses a preparation method of graphene lubricating oil for vehicles. The preparation method comprises the following steps: modification of graphene, preparation of nano lubricating oil, preparation of a stable suspension, preparation of graphene nano lubricating oil, and preparation of the required graphene lubricating oil for the vehicles. The prepared graphene lubricating oil for the vehicles does not have any layering or sinking phenomenon after a standing experiment for 60 days at the temperature of -20 DEG C; in addition, the graphene and the nano SiO2 particles cannot be settled; the prepared lubricating oil for the vehicles is proved to have good suspension stability, the lubricating performance of the lubricating oil is improved through graphene of modified graphene, meanwhile, good low-temperature flowing performance can be kept at a low temperature, and the lubricating performance of traditional lubricating oil for vehicles is improved.

Description

technical field [0001] The invention belongs to the technical field of graphene lubricating oil, in particular to a preparation method of graphene lubricating oil for vehicles. Background technique [0002] Lubricating oil is divided into two categories: industrial lubricating oil and automotive lubricating oil. Among them, automotive lubricating oil includes engine oil, water tank and cooling system oil, automatic gearbox oil, gear oil, brake and clutch system oil, etc. Lubricating oil It is generally composed of base oil and additives. For engine oil, the base oil usually accounts for about 90%, and the remaining additives account for 10%. The quality of the base oil is crucial to the performance of the lubricating oil, which provides the most basic Lubricating, cooling, anti-oxidation, anti-corrosion and other properties, so in order to improve the remaining properties of the lubricating oil, additives that can improve its overall performance are added to the lubricating ...

Claims

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Application Information

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IPC IPC(8): C10M125/02C10M161/00C10M177/00C10N30/04C10N30/06C10N30/08C10N40/08C10N40/25
CPCC10M125/02C10M161/00C10M177/00C10M2201/041C10M2201/105C10M2201/14C10M2207/283C10M2209/12
Inventor 孙震
Owner 青岛鑫乐驰润滑油有限公司
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