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Molybdenum-doped tungsten diselenide nanosheet serving as anti-fraction additive and preparation method thereof

A friction-reducing additive, tungsten diselenide technology, applied in additives, petroleum industry, lubricating compositions, etc., can solve the problems of environmental pollution, complex process control, etc. Simple preparation process

Inactive Publication Date: 2012-06-20
镇江中孚复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Currently synthesized WSe 2 The methods mainly include hydrothermal method, electrosynthesis method, thermal decomposition method, laser melting method, etc. However, the above-mentioned synthetic WSe 2 The methods all involve complex process control, and the synthesized products are often amorphous WSe 2 , further heat treatment process is required, and at the same time pollutes the environment

Method used

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  • Molybdenum-doped tungsten diselenide nanosheet serving as anti-fraction additive and preparation method thereof
  • Molybdenum-doped tungsten diselenide nanosheet serving as anti-fraction additive and preparation method thereof
  • Molybdenum-doped tungsten diselenide nanosheet serving as anti-fraction additive and preparation method thereof

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Effect test

Embodiment 1

[0018] Weigh the Mo powder, W powder and Se powder in a ratio of 5:95:220 in the amount of the substance. Mo powder 0.068g, W powder 2.48g, Se powder 2.71g, and the ball to material ratio 10:1 Put 50g stainless steel balls (diameter 6mm) together with the powder to be reacted into the clean stainless steel tank of the ball mill, cover and seal, and extract the air in the tank and then pour in Ar gas. Repeat 5 times to ensure that the air in the tank is fully discharged . Ball mill on planetary ball mill for 10h (ball mill rotation speed 200rpm). Take out the reactant from the ball milling pot and place it in the reactor for sealing, take out the air in the reactor, and pass in Ar gas, repeat 5 times, put it into the tubular reactor and heat it to 600℃ at a rate of 7℃ / min and keep it warm 1h, cool down to room temperature with the furnace, take out the powder from the reactor to obtain lamellar WSe 2 nanomaterials.

[0019] The product is tested, the X-ray energy spectrum (EDS) ...

Embodiment 2

[0021] Weigh the Mo powder, W powder and Se powder in a ratio of 3:97:220 in the amount of the material. Mo powder 0.045g, W powder 2.78g, Se powder 2.71g, and the ball-to-material ratio 10:1 Put 50g stainless steel balls (diameter 6mm) together with the powder to be reacted into the clean stainless steel tank of the ball mill, cover and seal, and extract the air in the tank and then pour in Ar gas. Repeat 5 times to ensure that the air in the tank is fully discharged . Ball mill on planetary ball mill for 10h (ball mill rotation speed 200rpm). Take out the reactant from the ball milling jar and place it in the reaction kettle for sealing. Take out the air in the reaction kettle and pass in Ar gas. Repeat 5 times. Put it into a tubular reactor and heat it to 650°C at a rate of 7°C / min. 1.5g, cooled to room temperature with the furnace, take out the powder from the reactor to obtain lamellar WSe 2 nanomaterials.

[0022] The prepared molybdenum-doped tungsten diselenide nanoshee...

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Abstract

The invention discloses a molybdenum-doped tungsten diselenide nanosheet serving as an anti-fraction additive and a preparation method thereof. The molybdenum-doped tungsten diselenide nanosheet serving as the anti-fraction additive is the nanosheet of which the thickness is 50 nm and both the length and the width are below 500 nm. In the invention, the molybdenum-doped tungsten diselenide nanosheet is prepared by using ball milling-heating solid-phase reaction; the preparation process is simple, the parameters are easy to control, and the production process is safe and environmentally-friendly. Due to the lamellar structure, the prepared molybdenum-doped tungsten diselenide nanosheet can be used as a solid lubricant, can also be used as the anti-friction additive for lubricating oil and grease and has broad development prospect in the field of engineering application. The molybdenum-doped tungsten diselenide nanosheet serving as the anti-fraction additive and the preparation method thereof have the advantages of excellent practicability, excellent economic prospect and capability of producing excellent social benefit.

Description

Technical field [0001] The invention relates to a friction-reducing additive and a preparation method thereof, in particular to a molybdenum-doped tungsten diselenide nanosheet used as a friction-reducing additive and a preparation method thereof. Background technique [0002] Transition metal sulfur selenide has various physical properties, such as metallicity, semiconductor properties, magnetic properties, superconductivity, etc., and has a wide range of application prospects. The preparation and properties of such materials have gradually become a recent research focus. In recent years, scientists have used different methods to prepare transition metal selenide materials. The characteristics of selenide are that the evaporation rate in vacuum is lower than that of sulfide, and it has good heat resistance and can be used as a vacuum lubricant. Selenide has gradually become a research hotspot in the field of friction applications due to its specific properties. The thermal con...

Claims

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Application Information

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IPC IPC(8): C10M125/22C10M177/00C10N30/06
Inventor 李长生薛茂权唐华
Owner 镇江中孚复合材料有限公司
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