A kind of molybdenum disulfide nano lubricating oil that can exist stably and preparation method thereof

A technology of molybdenum disulfide and lubricating oil, which is applied in the direction of lubricating composition and petroleum industry, which can solve the problems of poor suspension stability, complicated preparation process, aggregation, etc., and achieve the effects of low cost, simple preparation process and simple formula

Active Publication Date: 2022-08-09
DALIAN UNIV OF TECH
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  • 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.

Method used

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  • A kind of molybdenum disulfide nano lubricating oil that can exist stably and preparation method thereof
  • A kind of molybdenum disulfide nano lubricating oil that can exist stably and preparation method thereof
  • A kind of molybdenum disulfide nano lubricating oil that can exist stably and preparation method thereof

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Embodiment 1

[0038] In this embodiment, the molybdenum disulfide nano lubricating oil that can exist stably is composed of molybdenum disulfide powder, a dispersant mixture and a base oil; in the molybdenum disulfide nano lubricating oil, the mass fraction of the dispersant mixture is 12wt%, The mass fraction of molybdenum disulfide powder is 0.5 wt%; the dispersant mixture is composed 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: 9g of oleic acid, 18g of oleylamine and 9g of n-dodecan...

Embodiment 2

[0049] In this embodiment, the molybdenum disulfide nano lubricating oil that can exist stably is composed of molybdenum disulfide powder, a dispersant mixture and a base oil; in the molybdenum disulfide nano lubricating oil, the mass fraction of the dispersant mixture is 12wt%, The mass fraction of molybdenum disulfide powder is 0.3wt%; the dispersant mixture is composed 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 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: 9g of oleic acid, 18g of oleylamine and 9g of n-d...

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Abstract

The invention discloses a molybdenum disulfide nano lubricating oil that can exist stably and a preparation method thereof, wherein the molybdenum disulfide nano lubricating oil is composed of molybdenum disulfide powder, a dispersant mixture and a base oil; , the mass fraction of the dispersant 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: adding the molybdenum disulfide powder into the dispersant mixed solution to obtain a mixed reaction system The mixed reaction system is heated and magnetically stirred, and after the reaction is finished, it is naturally cooled to obtain a dispersant modified molybdenum disulfide mixed solution; the dispersant modified modified molybdenum disulfide mixed solution is mixed with the base oil, and Perform ultrasonic dispersion treatment to obtain molybdenum disulfide nano lubricating oil. MoS of the present invention 2 Nano-lubricating oil can exist stably, and can significantly reduce the wear scar diameter under extreme pressure conditions, significantly improving the lubricating properties of the base oil.

Description

technical field [0001] The present invention relates to the technical field of nano lubricating oil. Specifically, a molybdenum disulfide nano lubricating oil that can exist stably and a preparation method thereof are provided. Background technique [0002] Existing research shows that nano-lubricating oil has excellent extreme pressure performance and anti-wear and anti-friction performance compared with base oil, and has higher bearing capacity and lubricating performance under high temperature, heavy load and other conditions, and nanoparticles can repair factors. The local peaks contact the furrows created, thereby improving the flatness of the surface. Molybdenum disulfide (MoS 2 ) is 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 molyb...

Claims

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Application Information

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Patent Type & Authority Patents(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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