Method for preparing lubricating oil containing carbon nano tube and graphene

A carbon nanotube and graphene technology, which is applied in the petroleum industry, lubricating compositions, additives, etc., can solve the problems of not obtaining significant energy saving in fuel consumption, high degree of engine wear, and unsatisfactory anti-wear effect, so as to save fuel consumption. , reduce wear and protect the effect of the engine

Inactive Publication Date: 2017-02-08
SICHUAN CARBON WORLD TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a preparation method of lubricating oil containing carbon nanotubes and graphene, to solve the problem that the friction coefficient of ordinary lubricating oil in the prior art is relatively large, the degree of engine wear is relatively large during use, and the single The anti-wear effect of lubricating oil with carbon nanotubes or single lubricating oil with graphene is not ideal, the noise is relatively large, and the fuel consumption has not been significantly energy-saving. At the same time, graphite has not yet appeared on the market. Oxygen and carbon nanotube compound lubricating oil products

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  • Method for preparing lubricating oil containing carbon nano tube and graphene

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Embodiment 1

[0032] The preparation method of the lubricating oil containing carbon nanotube and graphene, comprises the following steps:

[0033] (1) Treatment of carbon nanotubes

[0034] Take 100 g of multi-walled carbon nanotubes prepared by catalytic cracking of hydrocarbons, add 500 ml of 98% sulfuric acid by volume: 70% nitric acid = 3: 1 mixed acid, and ultrasonically disperse at 60 ° C for 2 hours at a constant temperature. The frequency is 20KHz, then repeatedly rinsed with deionized water, filtered until the pH value is 7, and finally dried at a constant temperature of 60°C for 6 hours, and the processed carbon nanotubes are obtained;

[0035] (2) Graphene treatment

[0036] The graphene prepared by the vapor phase precipitation method is ultrasonically dispersed in a petroleum ether solvent added with a dispersant for 1 hour, and the ultrasonic frequency is 20KHz. After dispersion, the solvent oil is removed, and the processed graphene is obtained;

[0037] (3) Preparation of...

Embodiment 2

[0041] Except that the addition amount of carbon nanotube, graphene, dispersant, emulsifier is different, all the other methods are the same as embodiment 1.

[0042] Wherein: the mass percentage of carbon nanotube is 0.01%, the mass percentage of graphene is 0.01%, the mass percentage of dispersant is 0.03%, and the mass percentage of emulsifier is 0.03%.

Embodiment 3

[0044] Except that the addition amount of carbon nanotube, graphene, dispersant, emulsifier is different, all the other methods are the same as embodiment 1.

[0045] Wherein: the mass percentage of carbon nanotube is 0.04%, the mass percentage of graphene is 0.06%, the mass percentage of dispersant is 0.05%, and the mass percentage of emulsifier is 0.05%.

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Abstract

The invention provides a method for preparing lubricating oil containing carbon nano tube and graphene, which solves the technical defects of large wearing degree on an engine by common lubricating oil, non-ideal antiwear effect, large noise, and large fuel oil consumption in the prior art. The preparation method comprises fatty acid and acidifying processing of carbon nano tube, ultrasonic dispersion of graphene, and addition of the processed materials in the lubricating oil; wherein according to the mass percentage, carbon nanotube accounts for 0.005-2%, graphene accounts for 0.005-3%, a dispersant accounts for 0.01-2%, and an emulsifier accounts for 0.01-1%. The performance detection experiment shows that the prepared lubricating oil can reduce friction, reduces wearing, reduces noise of the engine, and obviously saves fuel oil consumption, because sheet layer sliding and self lubricating effects of graphene as well as nano rolling effect of the carbon nano tube are combined, the lubrication effect is provided, and at the same time, antiwear effect is provided.

Description

technical field [0001] The invention relates to a method for preparing lubricating oil, in particular to a method for preparing lubricating oil containing carbon nanotubes and graphene. Background technique [0002] Since carbon nanotubes and graphene were discovered by the scientific community, these two nanocarbon materials have been widely used as excellent lubricating oil additives due to their good mechanical properties and special structural morphology, and have become a research hotspot in the field of lubrication in recent years . [0003] Many scholars have carried out research in this area, such as using fatty acid and acidified multi-walled carbon nanotubes as lubricating oil additives. The results show that the addition of carbon nanotubes can improve the lubricating performance of lubricating oil, reduce friction, and reduce wear. , some scholars have used carbon nanotubes as water-based lubricant additives to reduce friction and reduce wear. The research resul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10M125/02C10M163/00C10N40/25C10N30/06
CPCC10M125/02C10M163/00C10M169/045C10M2201/041C10N2030/06C10N2040/25C10N2030/76
Inventor 刘军辉丁立连金杯张仲才
Owner SICHUAN CARBON WORLD TECH CO LTD
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