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Lubricating oil additive of phyllosilicate supported graphene and preparation method

A lubricating oil additive and layered silicate technology, which is applied in the field of lubricating oil, can solve the problems of ineffective lubricating performance and difficulty in uniform dispersion, so as to improve the traditional power of machinery, prolong life, excellent sliding and wear resistance Effect

Active Publication Date: 2019-10-08
哈尔滨华帆科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In view of the fact that graphene, which is currently widely used as a lubricating additive for lubricating oils, is difficult to disperse evenly and has the defect that the lubricating performance cannot be effectively exerted, the present invention proposes a lubricating oil additive and a preparation method of layered silicate loaded graphene , so as to effectively realize the uniform dispersion of graphene in lubricating oil

Method used

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  • Lubricating oil additive of phyllosilicate supported graphene and preparation method

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Experimental program
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Embodiment 1

[0030] The preparation process is:

[0031] (1) Add alkoxysilane and water glass solution into deionized water, mix and stir, and hydrolyze alkoxysilane in deionized water to obtain a mixed solution; alkoxysilane is methoxysilane; water glass solution is The degree of Baume is 21.9Bé °; the rotating speed of mixing and stirring is 260r / min, and the time is 24.5h; wherein, 6 parts by weight of alkoxysilane, 44 parts by weight of water glass solution, and 50 parts by weight of deionized water;

[0032] (2) Add graphene to the mixed solution prepared in step (1), place it in a homogenizer and disperse evenly, then add hydrochloric acid with a mass concentration of 20% for treatment, and then add diethyldimethylammonium hydroxide , triethylmethylammonium hydroxide, zinc chloride, mixed and stirred until gelation, to obtain a gelled product; wherein, 17 parts by weight of graphene, 66 parts by weight of mixed solution, 7 parts by weight of hydrochloric acid, diethyl dimethyl 5 par...

Embodiment 2

[0035] The preparation process is:

[0036](1) Add alkoxysilane and water glass solution into deionized water, mix and stir, and hydrolyze alkoxysilane in deionized water to obtain a mixed solution; alkoxysilane is ethoxysilane; water glass solution is The degree of Baume is 21.9Bé°; the rotating speed of mixing and stirring is 230r / min, and the time is 25h; wherein, 5 parts by weight of alkoxysilane, 42 parts by weight of water glass solution, and 53 parts by weight of deionized water;

[0037] (2) Add graphene to the mixed solution prepared in step (1), place it in a homogenizer and disperse evenly, then add sulfuric acid with a mass concentration of 10% for treatment, and then add diethyldimethylammonium hydroxide , triethylmethylammonium hydroxide, zinc chloride, mixed and stirred until gelation, to obtain a gelled product; wherein, 16 parts by weight of graphene, 68 parts by weight of mixed solution, 6 parts by weight of sulfuric acid, diethyl dimethyl 5 parts by weight ...

Embodiment 3

[0040] The preparation process is:

[0041] (1) Add alkoxysilane and water glass solution into deionized water, mix and stir, and hydrolyze alkoxysilane in deionized water to obtain a mixed solution; alkoxysilane is propoxysilane; water glass solution is The Baume degree is 21.9Bé °; the mixing speed is 290r / min, and the time is 24h; mixed with it, 9 parts by weight of alkoxysilane, 47 parts by weight of water glass solution, and 44 parts by weight of deionized water;

[0042] (2) Add graphene to the mixed solution prepared in step (1), place it in a homogenizer and disperse evenly, then add nitric acid with a mass concentration of 30% for treatment, and then add diethyldimethylammonium hydroxide , triethylmethylammonium hydroxide, zinc chloride, mixed and stirred until gelation, to obtain a gelled product; wherein, 19 parts by weight of graphene, 59 parts by weight of mixed solution, 9 parts by weight of nitric acid, diethyl dimethyl 7 parts by weight of ammonium hydroxide, ...

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Abstract

The invention provides a lubricating oil additive of phyllosilicate supported graphene and a preparation method. The preparation method comprises the following steps: putting alkoxy silane and a sodium silicate solution into deionized water so as to obtain a mixed solution, and further adding graphene, an acid, diethyl dimethyl ammonium hydroxide, triethyl-methyl ammonium hydroxide and zinc chloride so as to obtain a gelation compound; and further performing aging under a hydrothermal condition so as to obtain graphene supported silicate, and finally uniformly mixing the graphene supported silicate with molybdenum disulfide and tungsten disulfide, so as to obtain the lubricating oil additive of the phyllosilicate supported graphene. By adopting the method, the graphene is prefabricated among sheets of phyllosilicate, so that the problem that the graphene is liable to aggregate in a lubricating grease can be effectively solved, the prepared lubricating oil additive is used a basic lubricating grease, a lubricating grease of which graphene is uniformly dispersed can be obtained through high-speed stirring in a dispersion manner, the lubricating grease is not degraded, is effective and is long in service life in high-load lubrication, and in addition, has a good anti-wearing extreme pressure resistance property in case of a high load.

Description

technical field [0001] The invention relates to the field of lubricating oil, in particular to the preparation of lubricating oil additives, in particular to a lubricating oil additive and a preparation method of layered silicate loaded graphene. Background technique [0002] Lubricating grease is a kind of lubricating oil separated from petroleum and synthesized by hydrogenation, sulfonation, solvent extraction separation, etc. It is mainly used to reduce the friction between the surfaces of moving parts, and at the same time it has cooling and sealing effects on machinery and equipment. Widely used in industrial machinery lubrication and transmission lubrication, such as machine tool transmission machinery, textile machinery, lifting machinery, transportation machinery and other equipment. When the lubricating grease is used, the general working temperature is below 200°C, and the polar matter in it is on the metal surface of the friction part, which is decomposed by tribo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M125/00C10N30/06
CPCC10M125/00C10M2201/041C10M2201/065C10M2201/066C10M2201/102C10N2030/06
Inventor 曾军堂陈庆
Owner 哈尔滨华帆科技发展有限公司