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Graphene-containing lubricating oil and preparation method thereof

A technology of graphene and lubricating oil, which is applied in the field of graphene-containing lubricating oil and its preparation, can solve the problems of exhaust gas, pollutants, and environmental pollution, and achieve the effects of prolonging service life, reducing environmental pollution, and improving technology

Inactive Publication Date: 2017-03-15
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to increase the anti-friction and anti-wear effect of the lubricating oil, a small amount of lubricating oil additives are usually added to the lubricating oil. The traditional lubricating oil additives are sulfur, phosphorus, nitrogen or chlorine type anti-wear agents, which are corrosive to the friction pair materials. Chlorine has been banned, especially lubricating oil additives containing elements such as sulfur, phosphorus and nitrogen will emit exhaust gas and pollutants during use, thus causing pollution to the environment

Method used

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  • Graphene-containing lubricating oil and preparation method thereof
  • Graphene-containing lubricating oil and preparation method thereof
  • Graphene-containing lubricating oil and preparation method thereof

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preparation example Construction

[0026] The invention provides a graphene lubricating oil and a preparation method thereof. The components of the graphene lubricating oil are composed of: a synthetic base oil, a composite antioxidant, a metal cleaner, an ashless dispersant, and a nanoscale friction modifier , Viscosity index improver, pour point depressant, defoamer, the content of each component includes: 0.1-1 part of graphene, 72-85 parts of synthetic base oil, 0.8-3.2 parts of composite antioxidant , Metal tranquilizer 0.5-1.5 parts, ashless dispersant 2.3-6.5 parts, nano-scale friction modifier 0.05-1.5 parts, viscosity index improver 2.0-10.0 parts, pour point depressant 0.2-1.0 parts, defoamer 50ppm.

[0027] Wherein, the synthetic base oil proportioning by weight is: polyalphaolefin: PriEco polyol ester=5~10:5~10, wherein polyalphaolefin is at least one in PAO7, PAO8, PAO9, PriEco polyol The ester is at least one of PriEco 3030 and PriEco3030 polyol ester, provided by Shanghai Daopu Chemical Internati...

Embodiment 1

[0035] Recipe composition:

[0036]

[0037]

[0038] The preparation steps are as follows: add PAO8 60% and 14.2% of PriEco 3030 polyol ester at room temperature, and heat; under stirring at 62°C, add T814 0.5%, SV260 10.2%, and high alkali value sulfurized alkylphenate calcium 1.4%, T106 4.0%, stir evenly, add hexadecyl nano-calcium borate (T-362) 1.1%; friction modifier nano-organic molybdenum 0.2%, stir evenly, keep the original temperature and stir evenly, let it settle for 1 hour, That is the finished product.

Embodiment 2

[0040] Recipe composition:

[0041]

[0042]

[0043] The preparation steps are as follows: add PAO9 40%, PAO7 24.2% and 10% pentaerythritol ester at room temperature, and heat; while stirring at 64°C, add alkylnaphthalene T801 0.5%, SV261 10.1%, and perbasic alkanes successively. Calcium salicylate 1.2%, T106 4.0%, stir evenly, add 1.1% of nano-cerium naphthenate; friction modifier nano-organic molybdenum 0.2%; stir evenly, keep the original temperature, stir evenly, and let it settle for 1.5 hours to obtain finished product.

[0044] Chemical performance testing and simulation bench test, the main performance indicators are as follows:

[0045]

[0046] The test results are as follows:

[0047]A kind of green energy-saving gasoline engine oil disclosed by the present invention has passed three different types of models (Roewe sedan, BYD sedan and Great Wall off-road vehicle), and the actual driving test of 25,000 kilometers under different road conditions has foun...

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Abstract

The invention relates to a graphene-containing lubricating oil and a preparation method thereof. The graphene-containing lubricating oil comprises the following components by weight: 0.1-1 part of graphene, 72-85 parts of synthetic base oil, 0.8-3.2 parts of a composite antioxidant, 0.5-1.5 parts of a metal detergent, 2.3-6.5 parts of an ashless dispersant, 0.05-1.5 parts of a nanoscale friction modifier, 2.0-10.0 parts of a viscosity index improver, 0.2-1.0 part of a pour point reducer, and 50ppm of a defoamer. The preparation method includes: putting the synthetic base oil into a blending kettle, performing stirring, then adding the pour point reducer, the viscosity index improver, the composite antioxidant, the metal detergent, the ashless dispersant, and the nanoscale friction modifier, stirring the substances evenly, adding graphene and the defoamer, maintaining the original temperature, stirring the materials evenly, and performing standing. The graphene-containing lubricating oil provided by the invention solves the problems of corrosion and selectivity in traditional lubricating oil additives, at the same time the process is improved, and the ultrasonic dispersion link of graphene is eliminated.

Description

[0001] [technical field] [0002] The invention relates to the technical field of green lubricating oil, in particular to a graphene-containing lubricating oil and a preparation method thereof. [0003] [Background technique] [0004] In order to increase the anti-friction and anti-wear effect of the lubricating oil, a small amount of lubricating oil additives are usually added to the lubricating oil. The traditional lubricating oil additives are sulfur, phosphorus, nitrogen or chlorine type anti-wear agents, which are corrosive to the friction pair materials. Chlorine has been banned, especially lubricating oil additives containing elements such as sulfur, phosphorus and nitrogen will emit exhaust gas and pollutants during use, thus polluting the environment. [0005] Ideal graphene is only composed of carbon atoms on a dense crystal lattice, and its thickness is only 0.35nm, which is the thinnest two-dimensional material in the world. Due to its excellent mechanical properti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N30/12C10N30/10C10N30/06C10N40/25
CPCC10M169/048C10M2201/041C10M2201/087C10M2203/003C10M2203/06C10M2205/04C10M2205/06C10M2207/026C10M2207/144C10M2207/2805C10M2209/084C10M2215/064C10M2215/086C10M2219/046C10M2219/089C10M2227/00C10N2030/06C10N2030/10C10N2030/12C10N2030/54C10N2030/64C10N2030/76C10N2040/25
Inventor 叶斌
Owner SHANGHAI INST OF TECH
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