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Lubricating oil containing modified graphene and preparation method thereof

A technology of graphene and lubricating oil, which is applied in the field of lubricating oil, can solve problems such as stratification and precipitation, affect the function of graphene, coagulation, etc., and achieve the effect of avoiding agglomeration and good lubrication and anti-wear effects

Active Publication Date: 2020-04-10
西安玛珂特新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, graphene additives are prone to stratification and precipitation during use, which is not conducive to dispersion in lubricating oil, which affects the role of graphene in lubricating oil
[0004] Patent CN109504496A discloses a graphene lubricating oil for engines. Graphene, hexagonal boron nitride nanosheets and / or biological enzymes are introduced as improvers, and graphene is uniformly dispersed in the In lubricating oil, graphene can be prevented from precipitation and delamination in lubricating oil, but there is a strong van der Waals force between graphene sheets, and it is still difficult to grow graphene by relying on the action of hexagonal boron nitride nanosheets and / or biological enzymes. Time is stable, but coagulation will still occur, which will affect the excellent properties of graphene

Method used

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Experimental program
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Effect test

Embodiment 1

[0024] A preparation method of a lubricating oil containing modified graphene, adding 0.3g of modified graphene to 100g of the first part of 150N base oil, and ultrasonically vibrating for 20 minutes to obtain the lubricating oil, wherein the modified graphene is obtained by It is prepared by the following method: first, graphene oxide is used as raw material, doped with phosphorus and molybdenum selenide and reduced to obtain doped graphene, and then the doped graphene is modified with polyaniline and the second part of 150N base oil processing to obtain the modified graphene.

[0025] The preparation method of doped graphene is as follows: first add 1g graphene oxide and 3g pyrophosphoric acid into 50mL of absolute ethanol, disperse it by ultrasonic wave for 20 minutes, heat it in a water bath to 80°C, continue stirring and heating until dry, and then transfer it to a tube furnace , carry out solid phase reaction under inert gas atmosphere to generate pre-doped product, then...

Embodiment 2

[0032] A preparation method of lubricating oil containing modified graphene, adding 0.5g modified graphene to 100g of the first part of 150N base oil, and ultrasonically vibrating for 30 minutes to obtain the described lubricating oil, wherein the modified graphene is obtained by It is prepared by the following method: first, graphene oxide is used as raw material, doped with phosphorus and molybdenum selenide and reduced to obtain doped graphene, and then the doped graphene is modified with polyaniline and the second part of 150N base oil processing to obtain the modified graphene.

[0033] The preparation method of doped graphene is as follows: first add 1g graphene oxide and 5g pyrophosphoric acid into 60mL absolute ethanol, disperse it by ultrasonic wave for 30 minutes, heat it in a water bath to 85°C, keep stirring and heating until dry, and then transfer it to a tube furnace , carry out solid-phase reaction under inert gas atmosphere to generate pre-doped product, then a...

Embodiment 3

[0040] A preparation method of lubricating oil containing modified graphene, 0.3g modified graphene is added in 100g first part 150N base oil, ultrasonic vibration 30 minutes obtains described lubricating oil, wherein, modified graphene is obtained by It is prepared by the following method: first, graphene oxide is used as raw material, doped with phosphorus and molybdenum selenide and reduced to obtain doped graphene, and then the doped graphene is modified with polyaniline and the second part of 150N base oil processing to obtain the modified graphene.

[0041] The preparation method of doped graphene is as follows: first add 1g graphene oxide and 3g pyrophosphoric acid into 60mL absolute ethanol, disperse by ultrasonic wave for 20 minutes, heat in a water bath to 85°C, continue stirring and heating until dry, and then transfer to a tube furnace , carry out solid-phase reaction under inert gas atmosphere to generate pre-doped product, then add pre-doped product into 35mL of ...

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Abstract

The invention provides lubricating oil containing modified graphene and a preparation method of the lubricating oil. The lubricating oil is obtained by adding modified graphene into 150N base oil, graphene is modified, specifically, graphene oxide is used as a raw material, phosphorus and molybdenum selenide are doped and reduced firstly, and then polyaniline and 150N base oil are jointly modified, so that graphene agglomeration is avoided fundamentally, and the lubricating oil has good lubricating and wear-resisting effects.

Description

technical field [0001] The invention relates to the technical field of lubricating oil, in particular to a lubricating oil containing modified graphene and a preparation method thereof. Background technique [0002] Lubricating oil mainly plays the role of lubrication, cooling, rust prevention, cleaning, sealing and buffering, and is widely used in automobiles and mechanical equipment to reduce friction and protect machinery and processed parts. With the continuous development of cutting-edge technology, the performance requirements of lubricants are getting higher and higher. [0003] Lubricating oil is generally composed of base oil and additives. The former is mainly used for lubrication, and the latter is used to improve the properties of base oil. It is formed by mixing various functional agents in basic solvents to improve or add certain functions, such as anti-corrosion Oxygen anti-corrosion agent, which can prevent metal oxidation, catalyze aging, delay oil oxidatio...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10N30/06
CPCC10M169/045C10M2201/0413C10M2215/06C10M2201/082C10M2201/062C10M2227/04
Inventor 徐玉琴
Owner 西安玛珂特新材料科技股份有限公司
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