Application of lubricating oil detergent dispersant in preparation of graphene

A technology of cleansing and dispersing agent and lubricating oil, which is applied in the direction of lubricating compositions, etc., to achieve the effects of large volume and specific surface area, enhanced oxidation resistance and high quality
CN111073751APending Publication Date: 2020-04-28中科悦达(上海)材料科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
中科悦达(上海)材料科技有限公司
Publication Date
2020-04-28

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Abstract

The invention relates to application of a lubricating oil detergent dispersant in preparation of graphene and a method for preparing graphene for lubricating oil through mechanical stripping. The preparation method comprises the following steps: S1, adding a lubricating oil detergent dispersant into water, and mechanically stirring to obtain a mixed solution; S2, adding expanded graphite into themixed solution, and mechanically stirring to obtain expanded graphite water-based dispersion liquid; S3, mechanically stripping the expanded graphite water-based dispersion liquid to obtain graphene water-based dispersion liquid; and S4, obtaining the graphene for lubricating oil from the graphene water-based dispersion liquid. The lubricating oil detergent dispersant is used as a dispersant of expanded graphite, graphene for lubricating oil is prepared through mechanical stripping, and the method has the characteristics of high efficiency, low cost, high product yield and high product quality.
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Description

technical field

[0001] The invention relates to the preparation of graphene materials, more specifically to the use of a lubricating oil detergent and dispersant in preparing graphene and a method for preparing graphene for lubricating oil by mechanical exfoliation. Background technique

[0002] As a newly developed two-dimensional material, graphene has many excellent properties and has been widely developed and applied in the fields of composite materials, textiles, sensing, and energy. However, the lack of high-efficiency and high-quality preparation of graphene limits the further development of graphene materials, and how to efficiently prepare high-quality graphene has become a research hotspot.

[0003] Among the existing methods, the chemical vapor deposition (CVD) method is a method capable of preparing high-quality single-layer graphene, but the higher preparation cost makes it difficult for the CVD method to produce graphene in batches; the oxidation-reduction meth...

Claims

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