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A kind of ferric oxide/tungsten disulfide nanocomposite lubricant and preparation method thereof

A technology of triiron tetroxide and tungsten disulfide, which is applied in lubricating compositions, additives, petroleum industry, etc., can solve the problems of unpredictable product performance in the preparation process, and achieve prolonging the effective lubrication time, good dispersibility, and low preparation cost low effect

Inactive Publication Date: 2019-03-29
HEFEI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although Yang et al. (Biomaterials, 2015,60:62–71) reported that WS 2 @Fe 3 o 4 The effect of core-shell nanocomposite particles on targeted cancer therapy, but as we all know, for composite materials, the composition, structure, preparation process, etc. of the material will have an important impact on the performance of the product and it is difficult to predict, so WS 2 The development of composite materials still belongs to the category of scientific experiments. In addition, Fe 3 o 4 / WS 2 Nanocomposite lubricants prolong WS 2 Related reports on lubrication aging

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The preparation method of the above-mentioned ferric oxide / tungsten disulfide nanocomposite lubricant that the present invention also proposes comprises the following steps:

[0023] S1. Ball mill tungsten disulfide until the average particle size is less than 5 μm, then add 2.48g of ball-milled tungsten disulfide to 20mL glycerin for wetting, and then add 80mL glycerin for ultrasonic dispersion. The ultrasonic dispersion time is 22h, and the ultrasonic dispersion temperature is Centrifuge at 110°C for 10 minutes at a centrifugal speed of 3000 rpm to remove unstripped particles at the bottom and collect the upper layer solution to obtain a glycerol dispersion of tungsten disulfide nanosheets;

[0024] S2. Add 0.134g of sodium oxalate, 0.540g of ferric chloride hexahydrate, and 4.08g of sodium acetate to the glycerol dispersion of tungsten disulfide nanosheets in sequence, and perform hydrothermal reaction after ultrasonic dispersion. The temperature of ultrasonic dispers...

Embodiment 2

[0026] The preparation method of the above-mentioned ferric oxide / tungsten disulfide nanocomposite lubricant that the present invention also proposes comprises the following steps:

[0027] S1. Ball mill tungsten disulfide until the average particle size is less than 5 μm, then add 3.72 g of ball-milled tungsten disulfide to 20 mL of glycerin for wetting, and then add 80 mL of glycerin for ultrasonic dispersion. The time of ultrasonic dispersion is 25 hours, and the temperature of ultrasonic dispersion is Centrifuge at 120°C for 10 minutes at a centrifugal speed of 3000 rpm to remove unstripped particles at the bottom, collect the upper layer solution to obtain a glycerol dispersion of tungsten disulfide nanosheets;

[0028] S2. Add 0.268g of sodium oxalate, 0.405g of ferric chloride hexahydrate, and 6.12g of sodium acetate to the glycerol dispersion of tungsten disulfide nanosheets in sequence, and perform hydrothermal reaction after ultrasonic dispersion. The temperature of u...

Embodiment 3

[0030] The preparation method of the above-mentioned ferric oxide / tungsten disulfide nanocomposite lubricant that the present invention also proposes comprises the following steps:

[0031] S1. Ball mill tungsten disulfide until the average particle size is less than 5 μm, then add 4.96 g of ball-milled tungsten disulfide to 20 mL of glycerin for wetting, and then add 80 mL of glycerin for ultrasonic dispersion. The time of ultrasonic dispersion is 28 hours, and the temperature of ultrasonic dispersion is Centrifuge at 130°C for 10 minutes at a centrifugal speed of 3000 rpm to remove unstripped particles at the bottom, collect the upper solution to obtain a glycerol dispersion of tungsten disulfide nanosheets;

[0032] S2. Add 0.201g of sodium oxalate, 0.270g of ferric chloride hexahydrate, and 8.16g of sodium acetate to the glycerol dispersion of tungsten disulfide nanosheets in sequence, and perform hydrothermal reaction after ultrasonic dispersion. The temperature of ultraso...

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Abstract

The invention discloses a ferroferric oxide / tungsten disulfide nano-composite lubricating agent.The mole ratio of ferroferric oxide to tungsten disulfide is (0.1-0.):(1-2).The invention further discloses a preparation method of the ferroferric oxide / tungsten disulfide nano-composite lubricating agent.The preparation method comprises the following steps that the tungsten disulfide is subjected to ball milling and then added into glycerinum for ultrasonic dispersion, and tungsten disulfide nanosheet glycerinum dispersion liquid is obtained through centrifugation; sodium oxalate, ferric chloride hexahydrate and sodium acetate are sequentially added into the tungsten disulfide nanosheet glycerinum dispersion liquid, a hydrothermal reaction is carried out after ultrasonic dispersion, drying is performed after cleaning, and the ferroferric oxide / tungsten disulfide nano-composite lubricating agent is obtained.The lubricating agent has the excellent lubricating performance, the effective lubricating time can be significantly prolonged, in addition, technology is simple, convenient and safe, the yield is high, the cost is low, and large-scale production is easy.

Description

technical field [0001] The invention relates to the technical field of solid lubricants, in particular to a ferric oxide / tungsten disulfide nanocomposite lubricant and a preparation method thereof. Background technique [0002] With the continuous deepening of human exploration of space, more and more space vehicles have been sent into space. NASA pointed out that abnormal operation or failure of space vehicles due to lubrication failure has become an important factor affecting the effective service time of space vehicles. Therefore, how to maintain good lubrication of key components of space vehicles is a very important issue. Studies have shown that space dust, atomic oxygen, ultraviolet radiation, extreme high and low temperature, etc. in the space environment are all important factors that lead to lubricant failure. Selecting a suitable lubricant is very important for the stable operation of the aircraft. At present, for the moving parts of the aircraft directly exposed...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M125/00C10M125/10C10M125/22C10M177/00C10N30/06C10N30/04
CPCC10M125/00C10M125/10C10M125/22C10M177/00C10M2201/062C10M2201/065C10N2030/04C10N2030/06
Inventor 郑晓静徐玉福
Owner HEFEI NORMAL UNIV
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