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A kind of lubricating oil or lubricating grease with anti-wear and anti-friction and stable dispersion and preparation method thereof
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A technology of stable dispersion and lubricating oil, which is applied in the direction of lubricating compositions, petroleum industry, additives, etc., can solve the problems of weak correlation, etc., and achieve the effect of reducing wear, reducing the diameter of wear spots, and significantly operating comfort
Active Publication Date: 2022-03-18
GUANGXI LIUGONG MASCH CO LTD +1
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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.
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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 grease, the anti-wear and anti-friction and stable dispersion lubricating oil or grease comprises the main component of lubricating oil or lubricating grease and the sulfonated long carbon chainbranchGraphene, the preparation method of which comprises mixing the main component of lubricating oil or lubricating grease with sulfonated graphene branched by long carbon chains, stirring and dispersing to obtain the graphene. The lubricating oil or grease involved in the present invention can significantly improve its long-term dispersion stability and complex environment dispersion stability by adding sulfonated graphene grafted with long carbon chains to the main component, and can significantly improve the friction coefficient at the same time , can significantly improve the anti-wear and anti-friction properties of lubricating oil or grease, reduce the diameter of wear scars, and reduce the wear of copper and iron.
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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