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A kind of lubricating oil additive and preparation method of layered silicate loaded graphene

A lubricating oil additive, layered silicate technology, applied in the field of lubricating oil, can solve the problems of difficult uniform dispersion and ineffective lubricating performance, and achieve extended life, improved mechanical traditional power, excellent sliding and wear resistance. Effect

Active Publication Date: 2021-11-12
哈尔滨华帆科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • A kind of lubricating oil additive and preparation method of layered silicate loaded graphene

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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 , triethylmethyl ammonium hydroxide, zinc chloride, mix and stir until gelation, obtain gelation; Wherein, graphene 17 weight parts, mixed solution 66 weight parts, hydrochloric acid 7 weight parts, diethyl dimethyl 5 parts by weight of ammonium hydroxid...

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 and a preparation method of layered silicate loaded graphene. Add alkoxysilane and water glass solution to deionized water to make a mixed solution, then add graphene, acid, diethyldimethylammonium hydroxide, triethylmethylammonium hydroxide, and zinc chloride to obtain a condensate The gelled product is then aged under hydrothermal conditions to obtain graphene-loaded silicate, and finally dispersed evenly with molybdenum disulfide and tungsten disulfide to obtain a layered silicate-loaded graphene-loaded lubricating oil additive. This method effectively solves the problem that graphene is easy to agglomerate in lubricating oil by prefabricating graphene between sheets of layered silicate. The prepared lubricating oil additive is used in basic lubricating oil and can be dispersed by high-speed stirring to obtain The lubricating grease with evenly dispersed graphene is used for high-load lubrication without degradation and failure, and has a long service life, and has high anti-wear and extreme pressure performance under 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 Patents(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