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A kind of amine nano lubricating oil additive and application

A technology of lubricating oil additives and additives, applied in additives, lubricating compositions, petroleum industry, etc., can solve the problems of poor dispersion of nano-additives and reduce the anti-oxidation ability of oil products, and achieve anti-wear and anti-oxidation effects and excellent anti-oxidation effects Effect

Active Publication Date: 2021-06-08
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides an amine nano-lubricating oil additive and its application, which solves the technical problems of poor dispersibility of nano-additives in lubricating oil and reducing the oxidation resistance of oil products in the prior art

Method used

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  • A kind of amine nano lubricating oil additive and application
  • A kind of amine nano lubricating oil additive and application
  • A kind of amine nano lubricating oil additive and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Mix 4g of epoxy-functionalized nano-silica (particle size 7-25nm) and 60g of p-aminodiphenylamine, add 15mL of toluene as a solvent, heat up to 140°C, reflux for 6h, and filter at room temperature after the reaction The crude product was collected, rinsed with 20 g of absolute ethanol each time, washed three times, and dried in a blast drying oven at 90°C for 2 hours to obtain the product Nano-AO of the present invention.

[0023]

[0024] See attached Picture 1-1 And attached Figure 1-2 , referring to Table 1, by comparing the infrared spectrogram and thermogravimetric test results of the product of Example 1 and the epoxy-functionalized nano-silica, it can be judged that the product obtained in Example 1 is the target grafted product.

[0025] Table 1 embodiment 1 product and the infrared spectrum test result of epoxy functionalized nano silicon dioxide

[0026]

[0027] See attached figure 2 , the product obtained in Example 1 was observed with a scanning ...

Embodiment 2

[0029] The Nano-AO obtained in Example 1 was added to 46# hydraulic oil base oil at 0.1 wt.%, mechanically stirred for 10 minutes and then ultrasonicated for 10 minutes.

[0030] The effects of the additives obtained in Example 1 on the anti-oxidation and anti-wear properties of the base oil were evaluated. The evaluation results of anti-wear ability are shown in Table 2.

[0031] Table 2 Effect of Nano-AO on wear resistance of 46# hydraulic oil base oil

[0032]

[0033] The smaller the diameter of the wear scar, the better the anti-wear ability. It can be seen from Table 2 that the anti-wear ability of the base oil with 0.1wt.% additive is improved.

[0034] The oxidation resistance of the oil added with the additive obtained in Example 1 was investigated by using the temperature-programmed method of pressure differential scanning calorimetry (PDSC). The higher the initial oxidation temperature, the better the oxidation resistance. The temperature-programmed method uses...

Embodiment 3

[0036] The Nano-AO obtained in Example 1 was added to 150SN base oil (Type I) at 0.1 wt.%, mechanically stirred for 10 minutes and then ultrasonicated for 10 minutes.

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Abstract

The invention provides an amine nano lubricating oil additive and its application, and relates to the technical field of lubricating materials. The additive is obtained by grafting reaction of nano silicon dioxide containing epoxy groups on the surface and p-aminodiphenylamine, and can be applied to hydraulic pressure In the oil base, it significantly improves the anti-oxidation function of the oil, and has good dispersion stability and anti-wear performance in lubricating oil.

Description

technical field [0001] The invention relates to the technical field of lubricating materials, in particular to an amine nano lubricating oil additive and its application. Background technique [0002] The application and research of nano-lubricating additives began to develop with the birth of nano-technology. Due to the characteristics of small size effect and surface effect of nanoparticles, the new lubricating material prepared based on nano ions combines the advantages of fluid lubrication and solid lubrication, and uses a method different from traditional additives to reduce friction and antiwear. Nanoparticles as solid additives can not only be used in dry friction occasions without oil lubrication, but also can be widely used in oil lubrication situations to form mixed lubrication of fluid + solid. The most researched nano-oil additives (CN108587729A, CN108517239A, CN104531272A) are some layered or scaly solid lubricants with good anti-wear and friction-reducing prop...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M139/04C07F7/08C10N30/06C10N30/10
CPCC07F7/0834C10M139/04C10M2229/046
Inventor 李维民陈云龙王晓波马瑞
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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