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A kind of 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 poor extreme pressure lubrication performance, damage to mechanical structure, poor stability of additives, etc., and achieve the effects of stable performance, avoiding friction loss and improving oxidation resistance.

Active Publication Date: 2021-08-27
山西梓霖环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • A kind of lubricating oil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 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:

[0024] 1. Cu and Cu 3 Preparation of Ni alloy nanoparticles:

[0025] (1) Preparation of Cu nanoparticles

[0026] 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.

[0027] (2)Cu 3 Preparation of Ni alloy nanoparticles

[0028] Stir and heat 100mL oleyla...

Embodiment 2

[0034] 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.

[0035] 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

[0037] 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.

[0038] 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 a lubricating oil and a preparation method thereof. The lubricating oil comprises: 75-95wt% of base oil, 0.5-3wt% of Cu nanoparticles, Cu x Ni y 0.05-0.5 wt% of alloy nanoparticles, 0.2-2 wt% of antioxidant, 2-10 wt% of dispersant, and 0.005-0.05 wt% of defoaming agent. By adding oil-soluble nanoparticles, the present invention limits the particle size of nanoparticles, reduces the interaction force between ions, and solves the problems of precipitation and turbidity caused by the instability of anti-wear and anti-friction additives in lubricating oil; in ensuring efficient lubricating effect On the basis of clear, no precipitation, stable performance, long working cycle; at the same time, improve the oxidation resistance of lubricating base oil and nano-additive materials, avoid mechanical friction loss under occasional extreme conditions, and prolong the service life of the machine.

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 Patents(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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