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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 low energy consumption

Active Publication Date: 2020-04-21
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 kind of preparation method of graphene lubricating oil is provided, comprising the following steps:

[0057] Provide a dispersion of graphite and lubricating base oil;

[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. It uses high pressure to transport the material to the micro-fluidizer and gives the material a high flow rate. The material at a very high flow rate is in the micropore. The shearing effect occurs in the channel and disperses into ...

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 is 0.01-1%. Typical but non-limiting mass fractions of the antiwear agent 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 anti-wear agent, the obtained...

Embodiment 1

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

[0115] (a) Graphite powder and 4L lubricating base oil are placed in reaction kettle, stir 30min, obtain dispersion liquid, wherein the average particle diameter of graphite powder is 10 μ m, and its mass fraction in dispersion liquid is 0.1%;

[0116] (b) Process the dispersion twice with an ultra-high pressure micro-fluidic device at a pressure of 200 MPa to obtain a graphene lubricating oil.

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Abstract

The invention provides a preparation method of graphene lubricating oil, the graphene lubricating oil and an application thereof, and relates to the technical field of lubricating oil. According to the preparation method of the graphene lubricating oil, a dispersion liquid formed from graphite and lubricating base oil is treated under the treatment pressure of 180-380 MPa by adopting an ultrahigh-pressure microjet method, so that the graphene lubricating oil is obtained. According to the preparation method, the graphite in the dispersion liquid does not need to be subjected to chemical modification treatment and the graphite is treated directly under specific pressure so that the graphite is converted into graphene and the stable graphene lubricating oil is obtained. The preparation methodhas the advantages of simple process, convenient operation, low energy consumption, no pollution to the environment, safety, environmental protection, low production cost, suitableness for industrialproduction, and nearly zero discharge of waste water and waste gas. The invention further provides the graphene lubricating oil which is prepared by adopting the preparation method.

Description

technical field [0001] The invention relates to the technical field of lubricating oil, in particular to a preparation method of graphene lubricating oil, graphene lubricating oil and application thereof. Background technique [0002] Graphene is a carbon nanomaterial composed of carbon atoms in a hexagonal honeycomb lattice with sp hybrid orbitals. It has excellent mechanical, optical and electrical properties, so it is widely used in energy, materials science, micro-nano processing, biomedicine and drug delivery. etc. have important application prospects. For example, graphene can be applied to lubricating oil to lower the freezing point of lubricating oil and enhance the anti-wear and anti-friction 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 cylinder wall. The strain generated during the sliding friction increases the cylinder pressure and improves th...

Claims

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Application Information

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Patent Type & Authority Applications(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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