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Molybdenum disulfide nano lubricating oil capable of stably existing and preparation method of molybdenum disulfide nano lubricating oil

A molybdenum disulfide, lubricating oil technology, applied in lubricating compositions, petroleum industry and other directions, can solve the problems of poor suspension stability, aggregation, complex preparation process, etc., and achieve the effects of low cost, simple preparation process and simple formula

Active Publication Date: 2022-05-13
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] For this reason, the technical problem to be solved by the present invention is to provide a kind of stable molybdenum disulfide nano lubricating oil and its preparation method to solve the problem of existing MoS 2 Molybdenum disulfide in nano lubricating oil is prone to mutual adsorption and aggregation, poor suspension stability and complex preparation process, etc.

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  • Molybdenum disulfide nano lubricating oil capable of stably existing and preparation method of molybdenum disulfide nano lubricating oil
  • Molybdenum disulfide nano lubricating oil capable of stably existing and preparation method of molybdenum disulfide nano lubricating oil
  • Molybdenum disulfide nano lubricating oil capable of stably existing and preparation method of molybdenum disulfide nano lubricating oil

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Embodiment 1

[0038] In this embodiment, the stable molybdenum disulfide nano lubricating oil is composed of molybdenum disulfide powder, dispersant mixed liquid and base oil; in the molybdenum disulfide nano lubricating oil, the mass fraction of the dispersant mixed liquid is 12wt%. The massfraction of molybdenum disulfide powder is 0.5wt%; Described dispersant mixed liquid is made of oleic acid (Oleic acid, chemical formula C 18 h 34 o 2 ), oleylamine (Oleylamine, chemical formula C 18 h 37 N) and n-dodecanethiol (1-Dodecanethiol, chemical formula C 12 h 26 S) composition, the mass ratio of oleic acid, oleylamine and n-dodecanethiol is 1:2:1; the particle size of molybdenum disulfide powder is 50-200nm; the base oil is 32# base oil, which is industrial grade white oil.

[0039] The preparation method of the above-mentioned molybdenum disulfide nano lubricating oil that can exist stably comprises the steps:

[0040] Step A: Add 9g of oleic acid, 18g of oleylamine and 9g of n-dodecan...

Embodiment 2

[0049] In this embodiment, the stable molybdenum disulfide nano lubricating oil is composed of molybdenum disulfide powder, dispersant mixed liquid and base oil; in the molybdenum disulfide nano lubricating oil, the mass fraction of the dispersant mixed liquid is 12wt%. The massfraction of molybdenum disulfide powder is 0.3wt%; Described dispersant mixed liquid is made of oleic acid, (Oleic acid, chemical formula C 18 h 34 o 2 ), oleylamine (Oleylamine, chemical formula C 18 h 37 N) and n-dodecanethiol (1-Dodecanethiol, chemical formula C 12 h 26 S) composition, the mass ratio of oleic acid, oleylamine and n-dodecanethiol is 1:2:1; the particle size of molybdenum disulfide powder is 50-200nm; the base oil is 150# base oil, which is also an industrial grade white oil.

[0050] The preparation method of the above-mentioned molybdenum disulfide nano lubricating oil that can exist stably comprises the steps:

[0051] Step A: Add 9g of oleic acid, 18g of oleylamine and 9g of...

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Abstract

The invention discloses molybdenum disulfide nano lubricating oil capable of stably existing and a preparation method thereof, and the molybdenum disulfide nano lubricating oil is composed of molybdenum disulfide powder, a dispersant mixed solution and base oil; in the molybdenum disulfide nano lubricating oil, the mass fraction of the dispersing agent mixed solution is 8-15 wt%, and the mass fraction of the molybdenum disulfide powder is 0.1-1.0 wt%; the preparation method comprises the following steps: adding molybdenum disulfide powder into a dispersing agent mixed solution to obtain a mixed reaction system; heating the mixed reaction system, magnetically stirring, and naturally cooling after the reaction is finished, so as to obtain a dispersant-modified molybdenum disulfide mixed solution; and mixing the dispersant modified molybdenum disulfide mixed solution with the base oil, and carrying out ultrasonic dispersion treatment to obtain the molybdenum disulfide nano lubricating oil. The MoS2 nano lubricating oil can exist stably, the wear scar diameter under the extreme pressure condition can be remarkably reduced, and the lubricating property of base oil is remarkably improved.

Description

technical field [0001] The invention relates to the technical field of nano lubricating oil. Specifically, it is a stable molybdenum disulfide nano lubricating oil and a preparation method thereof. Background technique [0002] Existing studies have shown that compared with base oil, nano-lubricating oil has excellent extreme pressure performance, anti-wear and anti-friction performance, and has higher load-carrying capacity and lubricating performance under high temperature, heavy load and other conditions, and nano-particles can repair due to Localized peaks contact the resulting furrows, thereby improving the flatness of the surface. Molybdenum disulfide (MoS 2 ) are similar to graphene, both have obvious layered structure, and the lubricating properties of molybdenum disulfide depend on its own special crystal structure, and its layers are only connected by weak van der Waals force, showing the characteristics of easy shearing . The layer of molybdenum disulfide is a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N30/04C10N30/06
CPCC10M169/04C10M2201/066C10M2201/14C10M2207/126C10M2215/04C10M2219/082C10M2203/1006C10N2030/04C10N2030/06C10N2020/06C10N2020/02
Inventor 胡成志易昌利白敏丽李晓杰唐大伟
Owner DALIAN UNIV OF TECH
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