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Nano-graphite concentrate liquid composition and lubricating oil prepared by using composition

A technology of nano-graphite and composition, which is applied in lubricating compositions, petroleum industry, additives, etc. It can solve the problems of large specific surface area of ​​nano-materials, difficulty in uniform dispersion of nano-graphite, and poor oil solubility of nano-graphite, achieving excellent dispersion, Improved gasoline mileage and durability, excellent anti-wear and anti-friction effects

Active Publication Date: 2016-06-15
青岛天象石化有限公司
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large specific surface area of ​​nano-materials, it is easy to settle and agglomerate, and the oil solubility of nano-graphite is poor, so it is difficult to disperse nano-graphite evenly in the oil phase, and it is difficult to achieve the desired effect.

Method used

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  • Nano-graphite concentrate liquid composition and lubricating oil prepared by using composition
  • Nano-graphite concentrate liquid composition and lubricating oil prepared by using composition
  • Nano-graphite concentrate liquid composition and lubricating oil prepared by using composition

Examples

Experimental program
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Embodiment

[0130] See Table 1 for the contents of each component of the nano-graphite concentrated liquid composition and the results of the sedimentation test in the examples.

[0131] Wherein the preparation method of the nano-graphite concentrated liquid composition is as follows:

[0132] (1) Add the detergent dispersant, organic bentonite, and nano-graphite to the base oil in sequence according to the weight parts described in Table 1, and perform ultrasonic homogenization or high-power ultrasonic dispersion to obtain mixed oil A;

[0133] (2) Add the polyol ester, extreme pressure antiwear agent and diphenylamine antioxidant to the above mixed oil A in sequence, stir until mixed evenly, and obtain the nanographite concentrate liquid composition.

[0134]Example 6 and Example 9 of the nano-graphite concentrated liquid composition, comparative examples 1 to 4 were added to the G2 base oil at a weight ratio of 5% and 10%, respectively, and stirred and mixed uniformly to obtain a nano-...

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Abstract

The invention provides a nano-graphite concentrate liquid composition. The composition comprises, by mass, 0.1-10% of polyol ester, 0.1-10% of a purification dispersant, 0.1-5% of an extreme pressure anti-wear agent, 0.05-0.5% of a diphenylamine antioxidant, 0.5-15% of nano-graphite, 0.005-0.5% of organic bentonite, and the balance of base oil. The invention also provides a preparation method of the nano-graphite concentrate liquid composition, and an application of the composition in lubricating oil. The nano-graphite concentrate liquid composition has the characteristics of low settlement amount and excellent dispersibility, and makes original lubricating oil have the advantages of good high temperature purification dispersion and thermo-oxidative stability, excellent anti-wear and friction reduction properties, oil consumption saving and engine power improvement as a lubricating oil additive.

Description

technical field [0001] The invention relates to a lubricating oil additive, in particular to a lubricating oil additive containing graphite. In particular, the International Patent Classification number C10M is involved. Background technique [0002] Lubricating oil refers to the liquid lubricant used in various types of automobile transmission, mechanical equipment, and precision instruments to reduce friction and protect machinery and processed parts. It is mainly used to reduce friction between the surfaces of moving parts, and at the same time has cooling, Sealing, anti-corrosion, anti-rust, insulation, power transmission, cleaning impurities, etc. Lubricating oil generally consists of two parts: base oil and additives. Base oil is the main component of lubricating oil, which determines the basic properties of lubricating oil. Additives can make up for and improve the performance of base oil, and endow some new properties, such as oxidation resistance, wear resistanc...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10M167/00C10M177/00C10N30/04C10N30/06C10N30/10
CPCC10M125/02C10M125/30C10M129/74C10M133/12C10M137/105C10M143/04C10M143/06C10M145/14C10M149/02C10M159/12C10M167/00C10M169/048C10M177/00C10M2201/041C10M2201/103C10M2205/022C10M2205/024C10M2205/026C10M2207/283C10M2209/084C10M2215/064C10M2217/06C10M2219/044C10M2223/047C10N2030/04C10N2030/06C10N2030/10C10N2020/02C10N2010/04C10N2060/09
Inventor 胡义娥
Owner 青岛天象石化有限公司
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