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Preparation method of graphene lubricating oil, graphene lubricating oil and application

A lubricating oil and graphene technology, applied in the field of lubricating oil, can solve problems such as aggravating environmental pollution and the impact of lubricating oil, and achieve the effects of simple process, low production cost, and excellent anti-wear and anti-friction properties

Active Publication Date: 2022-05-24
贵州瑞诚新材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the addition of these chemical substances will undoubtedly aggravate environmental pollution, and may also have adverse effects on lubricating oil

Method used

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  • Preparation method of graphene lubricating oil, graphene lubricating oil and application
  • Preparation method of graphene lubricating oil, graphene lubricating oil and application
  • Preparation method of graphene lubricating oil, graphene lubricating oil and application

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Effect test

preparation example Construction

[0056] According to a first aspect of the present invention, a preparation method of graphene lubricating oil is provided, comprising the following steps:

[0057] Available in dispersions of graphite and lubricating base oils;

[0058] The dispersion liquid is processed by ultra-high pressure micro-jet technology, and the processing pressure is 180-380 MPa to obtain graphene lubricating oil.

[0059] Specifically, graphite is an allotrope of carbon, gray-black, and using graphite as a raw material for preparing graphene can effectively reduce the production cost of graphene.

[0060] The ultra-high pressure micro-jet method combines the high-pressure jet method, the impinging flow method and the traditional high-pressure homogenization method, and uses high pressure to transport the material into the micro-fluidizer and give the material a higher flow rate. The shearing action occurs in the channel and disperses into multiple high-speed fluids, and multiple high-speed impact...

Embodiment approach

[0086] As an optional embodiment of the present invention, the metal oxide includes any one or a combination of at least two of manganese oxide, magnesium oxide, calcium oxide, copper oxide, iron oxide, aluminum oxide, zinc oxide or titanium dioxide.

[0087] Preferably, the metal sulfide includes any one or a combination of at least two of molybdenum disulfide, sodium sulfide, zinc sulfide or silver sulfide.

[0088] Preferably, the silicon material includes silicon and / or silicon oxide.

[0089] Preferably, the carbon material includes carbon black and / or fullerenes.

[0090] As an optional embodiment of the present invention, the mass fraction of the antiwear agent in the dispersion liquid is 0.01-1%. Typical but non-limiting mass fractions of antiwear agents in the dispersion are 0.01%, 0.02%, 0.03%, 0.04%, 0.05%, 0.06%, 0.08%, 0.10%, 0.10%, 0.2%, 0.3%, 0.4 %, 0.5%, 0.6%, 0.8%, 0.9% or 1%.

[0091] By limiting the specific type and amount of the antiwear agent, the obtain...

Embodiment 1

[0114] The present embodiment provides a preparation method of graphene lubricating oil, comprising the following steps:

[0115] (a) placing graphite powder and 4L lubricating base oil in a reactor, stirring for 30min, to obtain a dispersion, wherein the average particle size of the graphite powder is 10 μm, and its mass fraction in the dispersion is 0.1%;

[0116] (b) using an ultra-high pressure microfluidic device to process the dispersion for 2 times, and the processing pressure is 200MPa to obtain graphene lubricating oil.

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Abstract

The invention provides a preparation method of graphene lubricating oil, graphene lubricating oil and application thereof, and relates to the technical field of lubricating oil. The preparation method of the graphene lubricating oil is to obtain the graphene lubricating oil by adopting an ultra-high pressure micro-jet method to treat the dispersion liquid formed by graphite and lubricating base oil at a processing pressure of 180-380MPa; wherein, the preparation method does not need to The graphite in the dispersion is chemically modified, and the graphite is directly processed under a specific pressure to realize the transformation from graphite to graphene and obtain a stable graphene lubricating oil. The preparation method is simple, easy to operate, and low in energy consumption. , the discharge of waste water and waste gas approaches zero, will not pollute the environment, is safe and environmentally friendly, has low production costs, and is suitable for industrial production. The present invention also provides a graphene lubricating oil, which is prepared by the above preparation method.

Description

technical field [0001] The invention relates to the technical field of lubricating oils, in particular to a preparation method of graphene lubricating oil, graphene lubricating oil and applications. Background technique [0002] Graphene is a carbon nanomaterial with a hexagonal honeycomb lattice composed of carbon atoms and sp hybrid orbitals. It has important application prospects. For example, graphene can be applied to lubricating oil to reduce the freezing point of lubricating oil and enhance the anti-wear and anti-wear properties of lubricating oil. At the same time, ultra-fine graphene particles can be adsorbed on the concave part of the cylinder wall to repair the piston ring and the cylinder wall. The strain generated during the sliding friction process increases the cylinder pressure and improves the power. [0003] At present, the quality of graphene lubricants largely depends on the production process, two-dimensional size and purity of nanomaterials (graphene)...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M177/00C10M169/04C10N30/06C10N30/08C10N40/04C10N40/12
CPCC10M177/00C10M169/04C10M169/044C10M2201/041C10M2201/05C10M2201/066C10M2229/041C10M2207/026C10M2203/1006C10M2207/401C10M2201/062
Inventor 韦勇黄富杨韦俊杰黄胜云
Owner 贵州瑞诚新材料技术有限公司
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