Preparation method of novel two-dimensional material reinforced polyethylene glycol lubricating oil

A technology of polyethylene glycol and two-dimensional materials, applied in the direction of lubricating compositions, petroleum industry, additives, etc., can solve the problem that the friction coefficient and wear rate are not well reduced, the lubrication effect will not be greatly improved, and the transfer Film instability and other problems, to achieve excellent cooling performance, good lubricating effect, excellent mechanical properties and self-lubricating effect

Inactive Publication Date: 2018-08-10
GUANGDONG UNIV OF TECH
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Problems solved by technology

[0005] However, in the existing technology, after adding MXene to other lubricants, the synergistic effect of the two cannot be better exerted, the friction coefficient and wear rate are not well reduced, and the formed transfer film is unstable and high for a long time. It is easy to wear under load conditions; and the additives cannot be well dispersed in the lubricant to form a uniform solvent, so that the lubricating effect will not be greatly improved

Method used

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  • Preparation method of novel two-dimensional material reinforced polyethylene glycol lubricating oil
  • Preparation method of novel two-dimensional material reinforced polyethylene glycol lubricating oil
  • Preparation method of novel two-dimensional material reinforced polyethylene glycol lubricating oil

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preparation example Construction

[0025] like Figure 1~2 Shown, a kind of preparation method of novel two-dimensional material reinforced polyethylene glycol lubricating oil comprises the following steps:

[0026] Step 1, adding Ti3AlC2 powder into HF solution for corrosion reaction, magnetic stirring for several hours, then centrifugal washing, and vacuum drying to obtain Ti3C2 powder; wherein, the raw material ratio of the Ti3AlC2 powder is TiC:Ti:Al=1:1 : 1.3; through ball mill mixing for 3 to 10 hours, the ball mill speed is 150 to 250r / min; the sintering temperature is 1350 to 1450°C, then crushed and sieved, and the sieve is set to 200 mesh; The volume ratio is 1g:(2-20)mL, the concentration of HF is 10%-40%, the etching time is 6-20 hours, and it is washed repeatedly with deionized water and ethanol.

[0027] Step 2, mixing the Ti3C2 powder in step 1 with the intercalation solvent, stirring, washing, and drying to obtain the treated Ti3C2 powder; wherein, the intercalation solvent is dimethyl sulfoxid...

Embodiment 1

[0032] (1) Mix 6g of Ti3AlC2 powder with 85mL of HF solution (the volume concentration of HF solution is 10%), stir at room temperature for 4 hours (rotation speed is 200rpm), then centrifugally wash with deionized water twice, and dry at 50°C for 24 Hours, Ti3C2 powder was obtained.

[0033] (2) Mix 5 g of Ti3C2 powder with 20 mL of dimethyl sulfoxide, stir at room temperature for 10 hours (300 rpm), wash with deionized water three times, and dry at 80° C. for 16 hours to obtain the treated Ti3C2 powder.

[0034](3) Dissolve 2 g of the treated Ti3C2 powder in a mixed solution of 300 mL of deionized water, sonicate for 4 hours (ultrasonic power is 300 W), centrifuge (8000 rpm for 20 min), take the supernatant, and freeze-dry to obtain a two-dimensional Ti3C2 (MXene) nanosheets.

[0035] (4) Dissolve two-dimensional Ti3C2(MXene) nanosheets in polyethylene glycol to form a 0.5 mg / ml solution, and stir it ultrasonically for 1 hour to obtain a solution with good dispersibility. ...

Embodiment 2

[0038] (1) Mix 6g of Ti3AlC2 powder with 85mL of HF solution (the volume concentration of HF solution is 10%), stir at room temperature for 4 hours (rotation speed is 200rpm), then centrifugally wash with deionized water twice, and dry at 50°C for 24 Hours, Ti3C2 powder was obtained.

[0039] (2) Mix 5 g of Ti3C2 powder with 20 mL of dimethyl sulfoxide, stir at room temperature for 10 hours (300 rpm), wash with deionized water three times, and dry at 80° C. for 16 hours to obtain the treated Ti3C2 powder.

[0040] (3) Dissolve 2 g of the treated Ti3C2 powder in a mixed solution of 300 mL of deionized water, sonicate for 4 hours (ultrasonic power is 300 W), centrifuge (8000 rpm for 20 min), take the supernatant, and freeze-dry to obtain a two-dimensional Ti3C2 (MXene) nanosheets.

[0041] (4) Use a dropper to take a small amount of solution and drop it between the friction pairs, select the load to be 300g, the rotational speed to be 300r / min, and the time to be 15min.

[004...

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Abstract

The invention discloses a preparation method of novel two-dimensional material reinforced polyethylene glycol lubricating oil. The preparation method comprises the following steps: step I, adding Ti3AlC2 powder into an HF solution, performing the corrosion reaction, magnetically stirring for a plurality of time, then centrifugally washing, vacuum drying, and obtaining Ti3C2 powder; step II, mixingthe Ti3C3 powder in step I and an intercalating solvent, stirring, washing, drying, and obtaining the processed Ti3C2 powder; step III, dissolving the Ti3C2 powder processed in step II in the deionized water, ultrasonically processing, centrifuging, collecting supernatant, drying, and obtaining Ti3C2 two-dimensional nanosheets; and step IV, stirring and mixing the Ti3C2 two-dimensional nanosheetsobtained in the step III and polyethylene glycol, preparing different solutions of different concentrations, ultrasonically processing, and then performing the friction abrasion experiment. The preparation method has the advantages of excellent cooling performance, difficulty in combustion, low pollution, low cost and the like.

Description

technical field [0001] The invention relates to the technical field of preparation of lubricating functional materials, in particular to a preparation method of a novel two-dimensional material reinforced polyethylene glycol lubricating oil. Background technique [0002] Layered materials represented by graphene and molybdenum disulfide are good lubricants. As a member of layered materials, MXene can also be used as lubricant additives. MXene has relatively good stability and surface controllability. Functional groups can be stably dispersed in various solvents, so MXene has high application value as a lubricating material. Studies have shown that the friction performance of adding Ti3C2Tx to crude oil, and found that adding 1.0wt% Ti3C2Tx can significantly improve the friction reduction and anti-wear properties of crude oil. During the friction process, the two-dimensional Ti3C2Tx material is attached and spread on the surface of the friction material. The shearing and squ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M125/08C10M169/04C10N30/06C10N30/10C10N30/12C10N30/02
CPCC10M125/08C10M169/04C10M2201/061C10M2209/1033C10N2030/02C10N2030/06C10N2030/10C10N2030/12C10N2030/56
Inventor 李仰光揭晓华麦永津陈福县
Owner GUANGDONG UNIV OF TECH
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