High-loading two-dimensional molybdenum disulfide-binary ionic liquid composite lubricating membrane and preparation method thereof

A technology of binary ionic liquid and molybdenum disulfide, which is applied in the direction of lubricating composition, petroleum industry, additives, etc., can solve the problems of little preparation involved, achieve good environmental protection characteristics, the preparation process is simple and easy to obtain, and enhance anti-friction resistance The effect of grinding performance and self-lubricating performance

Inactive Publication Date: 2018-10-26
XIANGTAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation of two-dimensional molybdenum disulfide and ionic liquid composite films has been reported, but there are few reports on the composite films formed by binary environment-friendly amino acid ionic liquids and high-load-carrying two-dimensional molybdenum disulfide and their preparation.

Method used

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  • High-loading two-dimensional molybdenum disulfide-binary ionic liquid composite lubricating membrane and preparation method thereof
  • High-loading two-dimensional molybdenum disulfide-binary ionic liquid composite lubricating membrane and preparation method thereof
  • High-loading two-dimensional molybdenum disulfide-binary ionic liquid composite lubricating membrane and preparation method thereof

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Experimental program
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Embodiment 1

[0022] The preparation of a high-load two-dimensional molybdenum disulfide-binary ionic liquid composite lubricating film with a thickness of 2 μm is carried out in accordance with the following steps:

[0023](1) Weigh 300mg molybdenum disulfide powder and 100mg sodium hydroxide powder, and add molybdenum disulfide powder and sodium hydroxide powder to 30mL N-methylpyrrolidone (NMP) solution, in which molybdenum disulfide and sodium hydroxide The mass ratio of the solution was 3:1, and ultrasonicated for 1 h in a 300W ultrasonic cell disruptor to form a uniformly dispersed suspension; then the ultrasonicated suspension was transferred to a centrifuge tube, and the centrifuge tube was placed in a centrifuge, Centrifuge at a speed of 3000rpm for 0.4h; discard the sediment, then wash with deionized water, and repeat the process of centrifugation and washing for more than 5 times; finally collect the supernatant solution to prepare the stripped molybdenum disulfide film, and use N...

Embodiment 2

[0027] The preparation of a high-load two-dimensional molybdenum disulfide-binary ionic liquid composite lubricating film with a thickness of 2.5 μm is carried out in accordance with the following steps:

[0028] (1) Weigh 300mg molybdenum disulfide powder and 200mg sodium hydroxide powder, and add molybdenum disulfide powder and sodium hydroxide powder to 30mL N-methylpyrrolidone (NMP) solution, in which molybdenum disulfide and sodium hydroxide The mass ratio is 3:2, ultrasonicated in a 293W ultrasonic cell disruptor for 1.5h to form a uniformly dispersed suspension; then transfer the ultrasonicated suspension to a centrifuge tube, and place the centrifuge tube in a centrifuge , centrifuged at 4500rpm for 0.5h; discarded the sediment, then washed it with deionized water, and repeated the centrifugation and washing process for more than 5 times; finally collected the supernatant solution to prepare the stripped molybdenum disulfide film, and used N- The two-dimensional molybd...

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Abstract

The invention discloses a high-loading two-dimensional molybdenum disulfide-binary ionic liquid composite lubricating membrane and a preparation method thereof. Two-dimensional molybdenum disulfide isuniformly dispersed in cysteine/cystine tetrabutyl phosphonium salt binary ionic liquid to form uniform and stable suspension, and the surface of a metal substrate is uniformly coated with the suspension. According to the preparation method, the two-dimensional molybdenum disulfide and the binary ionic liquid are combined, the two-dimensional molybdenum disulfide has a layered structure, the ionic liquid has a low shearing rate characteristic, the surface loading capacity of the composite lubricating membrane containing sulphur element formed by the synergistic reaction of the two-dimensionalmolybdenum disulfide and the ionic liquid can be improved, and the friction reducing and resisting performance and self lubricating performance of the surface are enhanced. Compared with a traditional ion lubricant and a molybdenum disulfide solid lubricant, the friction wearing coefficient and loading capacity of the metal substrate and the surface of the metal substrate can be improved.

Description

technical field [0001] A high-load two-dimensional molybdenum disulfide-binary ionic liquid composite lubricating film, which can be applied to the fields of micro-electromechanical systems, catalysts, electrochemistry, etc., is characterized in that the two-dimensional molybdenum disulfide has a layered structure in the composite lubricating film, The ionic liquid has low shear rate characteristics, and the composite lubricating film containing sulfur elements formed by the synergistic effect of the two can improve the bearing capacity of the surface, enhance the anti-friction and anti-wear performance and self-lubricating performance of the surface. In addition, the composite lubricating film does not contain F elements, and will not produce harmful substances such as HF during use, so it can reduce the corrosion performance of the composite lubricating film on the metal substrate, has good environmental protection characteristics, and its preparation process is simple and ea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M141/10C10N30/06C10N30/12
CPCC10M141/10C10M2201/066C10M2219/085C10M2223/06C10N2030/06C10N2030/12C10N2030/40C10N2030/56C10N2030/64
Inventor 刘思思黄小宁阮双双刘强姜胜强
Owner XIANGTAN UNIV
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