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Nano rhenium molybdenum alloy-graphene composite lubricating oil additive

A lubricating oil additive and graphene composite technology, applied in the direction of additives, petroleum industry, lubricating composition, etc., can solve the problem of easy aging or damage of lubricating film, and achieve the protection of metal surface, good lubricity and wear resistance Effect

Inactive Publication Date: 2020-12-15
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problem that the lubricating film formed during the actual application of lubricating oil additives is prone to aging or damage under high load conditions, the present invention proposes a nano-rhenium-molybdenum alloy-graphene composite lubricating oil additive, so as to ensure that lubricating oil can be used under high load Form a durable lubricating film and repair film during work

Method used

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  • Nano rhenium molybdenum alloy-graphene composite lubricating oil additive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Add graphene oxide into ethanol, and disperse evenly to obtain an ethanol dispersion of graphene oxide with a concentration of 10%;

[0038] (2) Spray a hydrogen peroxide solution with a mass concentration of 35% on the surface of the nano-rhenium-molybdenum alloy powder. The amount of hydrogen peroxide solution is 1.5% of the mass of the nano-rhenium-molybdenum alloy powder to make the nano-rhenium-molybdenum alloy powder slightly wet, and then Static treatment for 2.5h, so that defects appear on the surface of the nano-rhenium-molybdenum alloy powder, and obtain nano-rhenium-molybdenum alloy powder with surface defects;

[0039] (3) Add 32.5 kg of surface-defect nano-rhenium-molybdenum alloy powder into 100 kg of graphene oxide ethanol dispersion, then add 2 kg of sodium dodecylbenzene sulfonate, and disperse ultrasonically for 25 min with a power of 800 W and a frequency of 25 kHz, so that Graphene oxide is dispersed on the surface of nano-rhenium-molybdenum allo...

Embodiment 2

[0043] (1) Add graphene oxide into ethanol and disperse evenly to obtain an ethanol dispersion of graphene oxide with a concentration of 8%;

[0044] (2) Spray a hydrogen peroxide solution with a mass concentration of 32% on the surface of the nano-rhenium-molybdenum alloy powder. The amount of hydrogen peroxide solution is 1.2% of the mass of the nano-rhenium-molybdenum alloy powder to make the nano-rhenium-molybdenum alloy powder slightly wet, and then Static treatment for 2 hours, so that defects appear on the surface of the nano-rhenium-molybdenum alloy powder, and obtain nano-rhenium-molybdenum alloy powder with surface defects;

[0045] (3) Add 31kg of nano-rhenium-molybdenum alloy powder with surface defects into 100kg of graphene oxide ethanol dispersion, then add 1.5kg of sodium dodecylbenzenesulfonate, and disperse ultrasonically for 28min with a power of 760W and a frequency of 22kHz, so that Graphene oxide is dispersed on the surface of nano-rhenium-molybdenum allo...

Embodiment 3

[0049] (1) Add graphene oxide into ethanol, and disperse evenly to obtain an ethanol dispersion of graphene oxide with a concentration of 12%;

[0050] (2) Spray a hydrogen peroxide solution with a mass concentration of 38% on the surface of the nano-rhenium-molybdenum alloy powder. The amount of hydrogen peroxide solution is 1.8% of the mass of the nano-rhenium-molybdenum alloy powder to make the nano-rhenium-molybdenum alloy powder slightly wet, and then Static treatment for 3 hours, so that defects appear on the surface of the nano-rhenium-molybdenum alloy powder, and obtain nano-rhenium-molybdenum alloy powder with surface defects;

[0051] (3) Add 34kg of nano-rhenium-molybdenum alloy powder with surface defects into 100kg of graphene oxide ethanol dispersion, then add 2.5kg of sodium dodecylbenzenesulfonate, and ultrasonically disperse for 22min with a power of 840W and a frequency of 28kHz, so that Graphene oxide is dispersed on the surface of nano-rhenium-molybdenum al...

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Abstract

The invention provides a nano rhenium-molybdenum alloy-graphene composite lubricating oil additive, which is prepared by the following steps: wetting nano rhenium-molybdenum alloy powder by using a hydrogen peroxide solution, adding the nano rhenium-molybdenum alloy powder with defects on the surface and a surfactant into an ethanol dispersion solution of graphene oxide, carrying out uniform ultrasonic dispersion. then heating to reduce the graphene oxide into graphene, coating the graphene oxide with the nano rhenium molybdenum alloy powder, then carrying out homogenizing, dispersing, spraying and drying, and then uniformly dispersing with dithiocarbamate, a bisphenol antioxidant and phosphate to obtain the graphene-coated nano rhenium molybdenum alloy powder. The nano rhenium-molybdenumalloy graphene provided by the invention not only has high lubricity and wear resistance, but also spreads on the surface of a metal part under high load to protect the metal surface and repair micro-defects of the metal part, and meanwhile, the nano rhenium-molybdenum alloy and the graphene can form a protective layer with excellent wear resistance on the metal surface.

Description

technical field [0001] The invention relates to the technical field of lubricating oil additives, in particular to a nano-rhenium-molybdenum alloy-graphene composite lubricating oil additive. Background technique [0002] With the rapid development of the automobile industry and the machinery industry, the requirements for high-load and high-speed operation are getting higher and higher. Friction and wear are ubiquitous natural phenomena. Wear and tear during mechanical operation is the main cause of equipment damage. Lubricating oil is used to reduce friction. , the most effective technical means to reduce wear, and play an important role in high-performance machinery. Therefore, due to the requirements of safety and performance, the role of lubricating oil is becoming more and more important. [0003] With the development of the lubricating oil industry, the harsh conditions of high pressure and high temperature used in industrial machinery and other aspects of lubricatin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M141/00C10N30/06
CPCC10M141/08C10M2201/041C10M2201/05C10M2219/044C10M2219/068
Inventor 曾军堂陈庆司文彬李钧
Owner CHENDU NEW KELI CHEM SCI CO LTD
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