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Graphene lubricating oil additive, preparation method and application of graphene lubricating oil additive and lubricating oil with graphene lubricating oil additive

A lubricating oil additive and graphene technology, applied in the field of lubricating oil, can solve the problems of short service life, poor lubricity and high cost, and achieve the effects of good stability, good wear resistance and wide application range.

Active Publication Date: 2017-08-18
秦继恩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to make graphene have better lipophilicity, the existing technology uses surfactants or coupling agents to repeatedly treat graphene powder, but these processes are often complicated and costly
CN101812351A discloses a lubricating oil additive based on single-layer or several-layer graphene. After graphene is surface-modified, combined with a dispersant, it can have excellent stability and dispersibility in base oil, but its process is complex
CN105176628A discloses a method for preparing lubricating oil with graphene-loaded nano oxides for the problems of short service life of traditional lubricating oil, poor lubricity, and agglomeration and precipitation of existing lubricating oil nano-additives. Although lubricating performance and stability are improved, However, both the preparation of the composite of graphene oxide and nano-oxide and the lipophilic modification of the composite must go through a process of high temperature and high pressure, and the cost is relatively high. The obtained lipophilic graphene nano-oxide composite Dispersed in the base oil but also with the help of compound additives
The above methods all have the disadvantages of complicated process and large energy consumption.

Method used

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  • Graphene lubricating oil additive, preparation method and application of graphene lubricating oil additive and lubricating oil with graphene lubricating oil additive
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  • Graphene lubricating oil additive, preparation method and application of graphene lubricating oil additive and lubricating oil with graphene lubricating oil additive

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] A kind of graphene lubricating oil additive, is made up of the component of following mass parts:

[0056] Graphene 0.01 part;

[0057] 5 parts of polyesteramide;

[0058] 50 parts of mineral base oil of 500N.

[0059] The graphene lubricating oil additive is in an emulsion state.

[0060] The average number of carbon atom layers of graphene used is 6 layers, and the structural formula of polyester amide is:

[0061]

[0062] Wherein, m=5, n=10, X=35, Y=5.

[0063] The preparation steps of this graphene lubricating oil additive are as follows:

[0064] 1) Add graphene to the base oil according to the above mass fraction, pre-stirring at a rate of 1000r / min at 30°C for 100min, and then ultrasonically dispersing at 20kHz for 75min to obtain a premix;

[0065] 2) According to the above-mentioned parts by mass, polyester amide is added to the premix obtained in step 1), and stirred at a rate of 1000 r / min for 100 min at 65° C. to obtain a graphene lubricating oil ad...

Embodiment 2

[0076] A kind of graphene lubricating oil additive, is made up of the component of following mass parts:

[0077]

[0078] The graphene lubricating oil additive is in an emulsion state.

[0079] The average number of carbon atom layers of graphene oxide used is 8 layers, and the structural formula of polyester amide is:

[0080]

[0081] Wherein, m=10, n=5, X=42, Y=21.

[0082] The preparation steps of this graphene lubricating oil additive are as follows:

[0083] 1) Add graphene into the base oil according to the above mass fraction, pre-stirring at 65°C at a rate of 5000r / min for 20min, and then ultrasonically dispersing at 200kHz for 30min to obtain a premix;

[0084] 2) According to the above-mentioned parts by mass, the polyester amide is added to the premix obtained in step 1), and stirred at a rate of 3000 r / min for 20 min at 75° C. to obtain a graphene lubricating oil additive.

Embodiment 3

[0088] A kind of graphene lubricating oil additive, is made up of the component of following mass parts:

[0089]

[0090] The graphene lubricating oil additive is in an emulsion state.

[0091] The average number of carbon atomic layers of graphene used is 5 layers, and the structural formula of polyester amide is:

[0092]

[0093] Wherein, m=8, n=8, X=30, Y=10.

[0094] The preparation steps of this graphene lubricating oil additive are as follows:

[0095]1) Add the graphene into the base oil according to the above mass parts, pre-stirring at a rate of 3000r / min at 40°C for 50min, and then ultrasonically dispersing at 40kHz for 60min to obtain a premix;

[0096] 2) According to the above-mentioned parts by mass, polyester amide is added to the premix obtained in step 1), and stirred at a rate of 1500 r / min for 50 min at 70° C. to obtain a graphene lubricating oil additive.

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Abstract

The invention relates to a graphene lubricating oil additive, a preparation method and application of the graphene lubricating oil additive and lubricating oil with the graphene lubricating oil additive. The graphene lubricating oil additive is prepared from, by mass, 0.01-0.5 part of graphene substances, 0.1-5 parts of polyesteramide and 50-200 parts of base oil. By the aid of polyesteramide, the graphene substances can be well dispersed in the base oil of the lubricating oil, preparation can be realized without adoption of a high-temperature high-pressure method, and adoption of complex processes for graphene modification is avoided. The graphene lubricating oil additive obtained according to the formulation is excellent in dispersion performance and free of precipitates or layering after standing for longer than 14 months, and abrasion resistance and extreme pressure resistance of the lubricating oil can be substantially improved by mixing of the graphene lubricating oil additive with graphene lubricating oil carrier oil according to a volume ratio of (1-5):(1000-10000).

Description

technical field [0001] The invention relates to the technical field of lubricating oil, in particular to a graphene lubricating oil additive, a preparation method, an application and a lubricating oil containing the same. Background technique [0002] With the development of the economy, the market demand for lubricating oil is increasing. With the improvement of the national economy and people's living standards, more and more high-grade lubricants and new lubricants are needed in the process of production and life. Vigorously developing the production of high-grade lubricants and new lubricants is an One of the important ways of resource-saving society. [0003] The production of traditional lubricating oil basically adopts the following process: 1) Pretreatment: the lubricating oil base oil is analyzed for taste in the laboratory, and then sent to the oil storage tank through an oil pump, and naturally precipitates in the oil storage tank for more than 4 hours. Carry ou...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10N30/04C10N30/06
CPCC10M169/044C10M2201/041C10M2207/126C10M2207/281C10M2209/084C10M2209/102C10M2209/104C10M2217/028C10M2217/044C10M2227/065C10N2030/04C10N2030/06
Inventor 秦继恩
Owner 秦继恩
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