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Lubricating oil and preparation method thereof

A technology of lubricating oil and oleylamine, applied in the field of lubricating oil, can solve the problems of mechanical structure damage, poor stability of additives, poor extreme pressure lubrication performance, etc., achieve stable performance, improve oxidation resistance, and avoid friction loss.

Active Publication Date: 2021-02-05
山西梓霖环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a lubricating oil and its preparation method to solve the problem of poor stability of existing lubricant additives and structural damage caused by severe boundary friction of machinery due to poor extreme pressure lubrication performance

Method used

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  • Lubricating oil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] This embodiment provides a kind of lubricating oil, and the preparation method includes Cu and Cu 3 The preparation of Ni alloy nanoparticles and the preparation of lubricating oil are specifically prepared by the following methods:

[0025] 1. Cu and Cu 3 Preparation of Ni alloy nanoparticles:

[0026] (1) Preparation of Cu nanoparticles

[0027] Stir and heat 100mL oleylamine liquid to 55°C under inert gas conditions, then add 0.5mmol Cu(NO 3 ) 2 ·6H 2 Add O, keep heating and stirring for 30 minutes, then heat the mixture to 230°C, keep the temperature under stirring for 9 minutes, then stop heating, quickly cool down to room temperature in a cold water bath, collect the product by centrifugation, and finally use ethanol The product was washed three times to obtain oil-soluble Cu nanoparticles coated with oleylamine molecules, with a particle size of about 20 nanometers.

[0028] (2)Cu 3 Preparation of Ni alloy nanoparticles

[0029] Stir and heat 100mL oleyla...

Embodiment 2

[0035] This embodiment is based on the test program described in Example 1, by controlling Cu x Ni y In the preparation process of alloy nanoparticles, the obtained components are different from those described in Example 1, Cu 3 Ni alloy nanoparticles, that is, CuNi alloy nanoparticles, other schemes are the same as in Embodiment 1. Specifically, Cu(NO 3 ) 2 ·6H 2 O and Ni(NO 3 ) 2 ·6H 2 The amount of O added was set at 0.6 mmol.

[0036] The results of the anti-wear test (Table 1) show that the viscosity of the lubricating oil prepared in this embodiment is suitable, and the oil product is clear. Compared with Example 1, because the catalytic properties of CuNi nanoparticles are better than those of Cu 3 Ni is poor, the anti-wear performance of lubricating oil is reduced, the effective lubrication cycle is shortened, and the extreme pressure lubrication performance is reduced.

Embodiment 3

[0038] In this example, on the basis of the test program described in Example 1, by controlling the preparation process of Cu nanoparticles, the Cu nanoparticles with a particle size different from those described in Example 1 were obtained, that is, Cu nanoparticles with a particle size of 30 nanometers. Particle, other schemes are with embodiment 1. Specifically, Cu(NO 3 ) 2 ·6H 2 The amount of O added was adjusted to 0.8 mmol, and the reaction time under heating conditions was adjusted to 8 minutes.

[0039] The results of the anti-wear test (Table 1) show that the lubricating oil prepared in this example has an appropriate viscosity, clear oil, and extreme pressure lubrication performance. Compared with Example 1, the lubricating oil has a lower anti-wear performance, but the overall performance is excellent. In comparative example 2 gained product.

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Abstract

The invention provides lubricating oil and a preparation method thereof. The lubricating oil is prepared from the following components in percentage by weight: 75 to 95wt% of base oil, 0.5 to 3 wt% ofCu nanoparticles, 0.05 to 0.5 wt% of CuxNiy alloy nanoparticles, 0.2 to 2wt% of antioxidant, 2 to 10wt% of dispersing agent and 0.005 to 0.05 wt% of defoaming agent. By adding the oil-soluble nanoparticles, the granularity of the nanoparticles is limited, the interaction force between ions is reduced, and the problems of precipitation, turbidity and the like caused by instability of an anti-wearand anti-friction additive in the lubricating oil are solved; on the basis of guaranteeing the efficient lubricating effect, the lubricating oil is clear, free of sediment, stable in performance and long in working period; and meanwhile, the oxidation resistance of the lubricating oil base oil and the nano additive material is improved, the friction loss of a machine under accidental extreme conditions is avoided, and the service life of the machine is prolonged.

Description

technical field [0001] The invention relates to the technical field of lubricating oil, in particular to a lubricating oil and a preparation method thereof. Background technique [0002] Friction and wear are one of the important reasons for energy loss and mechanical failure during mechanical operation. Reducing the loss caused by friction and wear has positive significance for improving mechanical efficiency and saving energy. Since the mid-20th century, lubricating oil technology has played an important role in solving friction and wear problems, and related technologies have also been greatly developed. With the refined development of mechanical processing technology and the improvement of the requirements for mechanical operation efficiency, the lubrication technology has developed from the initial base oil lubrication to the existing high-performance lubricant lubrication added with various anti-friction and anti-wear functional materials. [0003] The lubricating pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M177/00C10M169/04C10N30/06C10N30/10C10N30/18
CPCC10M169/044C10M177/00C10M2201/05C10M2203/022C10M2205/0206C10M2207/023C10M2229/04
Inventor 辛光
Owner 山西梓霖环保科技有限公司
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