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Lubricating grease containing modified graphene, and preparation method thereof

A graphene and grease technology, applied in the field of modified graphene-containing grease and its preparation, can solve the problems of grease colloidal stability, poor dropping point friction reduction performance, poor graphene dispersion uniformity, etc. Dropping point and anti-friction properties, improved compatibility, improved uniform dispersion

Inactive Publication Date: 2020-04-03
长沙而道新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a kind of lubricating grease containing modified graphene and its preparation method, to solve the technical problems such as the direct addition of graphene, poor dispersion uniformity, colloidal stability, dropping point, and poor anti-friction performance of lubricating grease

Method used

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  • Lubricating grease containing modified graphene, and preparation method thereof

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Effect test

Embodiment 1

[0031]A preparation method of lubricating grease containing modified graphene. First, mix the first part of base oil with high molecular acid and low molecular acid, heat, add barium hydroxide, saponify, refine, cool, and add the pre-mixed second Two parts of base oil and modified graphene are stirred evenly and ground into grease to obtain the described grease containing modified graphene; wherein the modified graphene is prepared by the following method: first oxidized Graphene is used as a raw material for silicon, boron, and phosphorus co-doping, and then the multi-doped graphene is obtained through reduction treatment, and then the multi-doped graphene is organically modified by 7-octenyl trichlorosilane, and then The obtained intermediate product is polymerized with isooctyl acrylate, and finally the polymerized product is mixed with 7,7,8,8-tetracyano-p-dimethylbenzoquinone to obtain the modified graphene.

[0032] The mass ratio of the first part of base oil, high mole...

Embodiment 2

[0047] A preparation method of lubricating grease containing modified graphene. First, mix the first part of base oil with high molecular acid and low molecular acid, heat, add barium hydroxide, saponify, refine, cool, and add the pre-mixed second Two parts of base oil and modified graphene are stirred evenly and ground into grease to obtain the described grease containing modified graphene; wherein the modified graphene is prepared by the following method: first oxidized Graphene is used as a raw material for silicon, boron, and phosphorus co-doping, and then the multi-doped graphene is obtained through reduction treatment, and then the multi-doped graphene is organically modified by 7-octenyl trichlorosilane, and then The obtained intermediate product is polymerized with isooctyl acrylate, and finally the polymerized product is mixed with 7,7,8,8-tetracyano-p-dimethylbenzoquinone to obtain the modified graphene.

[0048] The mass ratio of the first part of base oil, high mol...

Embodiment 3

[0063] A preparation method of lubricating grease containing modified graphene. First, mix the first part of base oil with high molecular acid and low molecular acid, heat, add barium hydroxide, saponify, refine, cool, and add the pre-mixed second Two parts of base oil and modified graphene are stirred evenly and ground into grease to obtain the described grease containing modified graphene; wherein the modified graphene is prepared by the following method: first oxidized Graphene is used as a raw material for silicon, boron, and phosphorus co-doping, and then the multi-doped graphene is obtained through reduction treatment, and then the multi-doped graphene is organically modified by 7-octenyl trichlorosilane, and then The obtained intermediate product is polymerized with isooctyl acrylate, and finally the polymerized product is mixed with 7,7,8,8-tetracyano-p-dimethylbenzoquinone to obtain the modified graphene.

[0064] The mass ratio of the first part of base oil, high mol...

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Abstract

The invention provides a preparation method of a lubricating grease containing modified graphene. The preparation method comprises the following steps: mixing a first part of base oil with a high-molecular acid and a low-molecular acid, heating the obtained mixture, adding barium hydroxide, carrying out a saponifying reaction, refining the obtained reaction product, cooling the refined reaction product, adding a premixed second part of base oil and modified graphene, performing stirring until uniformity, and grinding the obtained mixture into grease in order to obtain the lubricating grease containing modified graphene, wherein the modified graphene is prepared by the following steps: co-doping graphene oxide, used as a raw material, with silicon, boron and phosphorus, carrying out reduction treatment to obtain multi-doped graphene, organically modifying the multi-doped graphene with 7-octenyltrichlorosilane, carrying out a polymerization reaction on the obtained intermediate and 2-ethylhexyl acrylate, and finally mixing and reacting the obtained polymerization product with 7,7,8,8-tetracyano-p-xylylenequinone to obtain the modified graphene. The obtained lubricating grease producthas the advantages of good colloid stability, high dropping point and excellent antifriction performance.

Description

technical field [0001] The invention relates to the technical field of lubricating oil or lubricating grease, in particular to a lubricating grease containing modified graphene and a preparation method thereof. Background technique [0002] Grease is a thick grease-like semi-solid prepared from mineral oil (or synthetic lubricating oil) and a thickener. It can be used on mechanical friction parts or metal surfaces to lubricate, seal, fill gaps, and prevent rust. . [0003] According to the thickener, grease can be divided into two types: soap-based grease and non-soap-based grease. Lithium, sodium, calcium, aluminum, zinc and other metal soaps are commonly used as thickeners for soap base fats, as well as potassium, barium, lead, manganese and other metal soaps. Graphite, carbon black, asbestos and synthetic (such as polyurea base, bentonite) are used as the thickener of non-soap base grease. According to the application, it can be divided into two types: general grease an...

Claims

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Application Information

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IPC IPC(8): C10M125/02C09C1/46C09C3/06C09C3/08C09C3/12C10N30/06C10N50/10
CPCC09C1/46C09C3/06C09C3/08C09C3/12C10M125/02C10M2207/126C10M2207/127C10M2207/128C10M2207/142
Inventor 不公告发明人
Owner 长沙而道新能源科技有限公司
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