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Fluorinated graphene reinforced lubricating oil and preparation method thereof

A technology of fluorinated graphene and lubricating oil, applied in the field of lubricating oil, can solve problems such as agglomeration, affecting dispersion stability, etc., and achieve the effect of promoting anti-wear performance, improving anti-rust performance and improving performance

Active Publication Date: 2018-06-08
XIAMEN 6C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, graphene is prone to agglomeration in lubricating oil and water, which affects its dispersion stability in solvents such as lubricating oil and water.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0036] The present invention proposes a kind of preparation method of fluorinated graphene enhanced lubricating oil, it comprises the following steps:

[0037] S1, mix the oleic acid and the modified fluorinated graphene, stir and react at 120-140°C for 1-2 hours to obtain the first mixed liquid, mix the trimethylolpropane and the anti-wear Put the phosphating solution in a reaction container, heat up to 90-100°C, heat-preserve and stir for 10-20 minutes to obtain the second mixed liquid, then add the first mixed liquid, lower the temperature to 40-50°C, heat-preserve and stir for 1 ~2h, then add the amine solvent to obtain a reaction solution;

[0038] S2, placing the reaction solution in a reaction kettle, injecting an inert gas, and stirring and reacting at 60-70° C. for 2-3 hours to obtain a lubricating modified solution;

[0039]S3, mixing the base oil, the lubrication modification solution, the ammonium fluoroborate, the sodium pyrophosphate, the plasticizer, and the em...

Embodiment 1

[0046] A kind of modified fluorinated graphene provided by the present embodiment is prepared according to the following method:

[0047] (1) Disperse 1 g of graphene oxide in water, ultrasonically disperse for 30 to 60 min, then add 0.03 g of sodium fluoride and 0.03 g of diallyl dimethyl ammonium chloride, place in an autoclave, and React at 140°C for 6 hours to obtain fluorinated graphene.

[0048] (2) Dissolving 3 g / L chitosan in 2% acetic acid solution according to the feed ratio, and then adding carboxymethylated lignin with a mass fraction of 6% to obtain a lignin solution.

[0049] (3) The modified liquid is obtained by mixing 85% lignin solution, 12% polyethylene glycol, 0.5% methyl tin mercaptide and 2.5% carbon black.

[0050] (4) Disperse the fluorinated graphene in the modifying liquid according to the feed ratio of 2 g / L, heat to 85° C., keep stirring for 2 hours, filter, wash, and dry to obtain the modified fluorinated graphene.

Embodiment 2

[0052] The present embodiment provides an anti-wear phosphating solution, which is prepared according to the following steps:

[0053] (1) Add 8g of tetraethyl orthosilicate to 300mL of water, stir evenly, add 3g of potassium dihydrogen phosphate, add 3g of 25wt% ammonia water dropwise at 50°C, keep stirring for 3 hours after the dropwise addition, and discharge Cool to obtain silicon solution;

[0054] (2) Add 2g of maleic anhydride to the silicon solution, stir evenly, mix with 42g of 20wt% phosphoric acid aqueous solution, keep stirring at 65°C for 25min to obtain a silicon phosphide solution;

[0055] (3) Add 10g of pentaerythritol into 30ml of water, stir evenly, mix with silicon phosphide solution, keep stirring for 2 hours under the water bath condition of 90°C, discharge, mix with 0.4g castor oil, and stir to normal temperature to obtain anti- Grinding phosphating solution.

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Abstract

The invention provides a fluorinated graphene reinforced lubricating oil and a preparation method thereof, and relates to the technical field of lubricating oil. The fluorinated graphene reinforced lubricating oil comprises the main materials of 200-300 parts of base oil, 2-5 parts of modified fluorinated graphene, 10-15 parts of oleic acid, 10-15 parts of amine solvent, 20-25 parts of anti-wear phosphating solution, 10-15 parts of trimethylolpropane, 2-3 parts of ammonium borofluoride, 2-3 parts of sodium pyrophosphate, 0.5-1 part of a plasticizer, and 0.5-1 part of an emulsifying agent. Thefluorinated graphene is dispersed in the lubricating oil, the bearing capacity and the wear-resisting property of the lubricating oil are both effectively improved, and the fluorinated graphene reinforced lubricating oil has an excellent application prospect.

Description

technical field [0001] The invention relates to the technical field of lubricating oil, and in particular to a fluorinated graphene-enhanced lubricating oil and a preparation method thereof. Background technique [0002] Due to the huge application prospects of graphene in different fields such as physics, chemistry, and materials, it has greatly promoted the rapid development of graphene preparation technology and the continuous improvement of process flow, providing raw material guarantee for basic research and application development of graphene. . However, since graphene with a complete structure is composed of stable six-membered cyclobenzene-like units, its surface is inert, its chemical stability is high, and there is a strong π-π interaction between graphene sheets, making it stable in solution. The dispersion stability of the graphene is seriously affected, and it is easy to produce aggregation and precipitation, which is not conducive to the further application of...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10N30/06C10N30/04
CPCC10M169/04C10M169/044C10M2201/085C10M2201/087C10M2201/10C10M2201/14C10M2207/022C10M2207/126C10M2207/281C10M2207/402C10M2209/102C10M2215/04C10M2215/042C10M2215/082C10N2030/04C10N2030/06C10N2030/56
Inventor 林志锋陈艺勇陈文志廖廷俤
Owner XIAMEN 6C TECH CO LTD
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