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A preparation of nanomos by polymerization of dopamine 2 -al 2 o 3 Method for compound rolling lubricant

A mos2-al2o3, compound rolling technology, applied in the field of lubrication, can solve the problems of reducing anti-wear and anti-friction performance, achieve the effect of reducing rolling force and friction coefficient, good reproducibility, and expanding the application range

Active Publication Date: 2021-07-16
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the high surface energy of nano-sized spherical particles, aluminum oxide is easily agglomerated into micron-sized particles in a liquid phase environment, thereby reducing its anti-wear and anti-friction properties.

Method used

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  • A preparation of nanomos by polymerization of dopamine <sub>2</sub> -al <sub>2</sub> o <sub>3</sub> Method for compound rolling lubricant
  • A preparation of nanomos by polymerization of dopamine <sub>2</sub> -al <sub>2</sub> o <sub>3</sub> Method for compound rolling lubricant
  • A preparation of nanomos by polymerization of dopamine <sub>2</sub> -al <sub>2</sub> o <sub>3</sub> Method for compound rolling lubricant

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The main components and mass fraction of embodiment 1 are as follows:

[0029] serial number component name Mass fraction / wt.% 1 Molybdenum disulfide-alumina nanoparticles 1 2 Glycerol 5 3 Triethanolamine 6 4 Hexametaphosphate 0.4 5 Sodium dodecyl benzene sulfonate 0.8 6 Waterborne Borate 0.5 7 Defoamer 0.1 8 Deionized water 86.2

[0030] Add 2.0g polydopamine-modified molybdenum disulfide nanosheets and 100g ethylene glycol into the beaker, stir magnetically for 5min, then gradually add 4.0g aluminum chloride hexahydrate and 10.0g polyethylene glycol 200, continue at 900r / min After stirring for 20 min, the beaker was placed in 40 kHz ultrasonic wave for 15 min. Then add 20g of sodium acetate, keep stirring at the above temperature and speed for 2 hours, transfer the obtained liquid to a high-temperature reactor, heat to 180°C for hydrothermal reaction for 15 hours, and centrifuge the product at 5...

Embodiment 2

[0033] The main components and mass fraction of embodiment 2 are as follows:

[0034] serial number component name Mass fraction / wt.% 1 Molybdenum disulfide-alumina nanoparticles 3 2 Glycerol 3 3 Triethanolamine 5 4 Hexametaphosphate 1 5 Sodium dodecyl benzene sulfonate 2.2 6 Waterborne Borate 0.5 7 Defoamer 0.1 8 Deionized water 85.2

[0035]Add 2.0 g of polydopamine-modified molybdenum disulfide nanosheets and 100 g of ethylene glycol into the beaker, stir magnetically for 5 min, then gradually add 4.0 g of aluminum chloride hexahydrate and 8.0 g of polyethylene glycol 200, and continue at 900 r / min After stirring for 20 min, the beaker was placed in 40 kHz ultrasonic wave for 15 min. Then add 20g of sodium acetate, keep stirring at the above temperature and speed for 2 hours, transfer the obtained liquid to a high-temperature reactor, heat to 180°C for hydrothermal reaction for 15 hours, and centrifug...

Embodiment 3

[0038] The main components and mass fraction of embodiment 3 are as follows:

[0039] serial number component name Mass fraction / wt.% 1 Molybdenum disulfide-alumina nanoparticles 4 2 Glycerol 3 3 Triethanolamine 3 4 Hexametaphosphate 1.5 5 Sodium dodecyl benzene sulfonate 3.2 6 Waterborne Borate 0.5 7 Defoamer 0.1 8 Deionized water 84.7

[0040] Add 2.0g polydopamine-modified molybdenum disulfide nanosheets and 100g ethylene glycol into the beaker, stir magnetically for 5min, then gradually add 6.0g aluminum chloride hexahydrate and 10.0g polyethylene glycol 200, continue at 1000r / min After stirring for 20 min, the beaker was placed in 40 kHz ultrasonic wave for 15 min. Then add 20g of sodium acetate, keep stirring at the above temperature and speed for 2 hours, transfer the obtained liquid to a high-temperature reactor, heat to 190°C for hydrothermal reaction for 15 hours, and centrifuge the product at ...

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Abstract

Preparation of Nano-MoS by Polymerization of Dopamine 2 ‑Al 2 O 3 The method for composite rolling lubricant belongs to the technical field of lubrication. The self-polymerization of dopamine into polydopamine is used to modify the surface of molybdenum disulfide nanosheets to obtain polydopamine-modified molybdenum disulfide nanosheets; then aluminum chloride hexahydrate, poly Ethylene glycol 200, sodium acetate, the resulting solution was centrifuged, washed and dried to obtain nano-MoS 2 ‑Al 2 O 3 Composite powder; finally, disperse the prepared composite nano powder into deionized water, add glycerol, triethanolamine, sodium hexametaphosphate, sodium dodecylbenzenesulfonate, aqueous borate ester and trace defoamer, namely The desired compound rolling lubricant can be obtained. The preparation process of the invention is simple, the reproducibility is good, the cost is low and the efficiency is high, and it is beneficial to mass production, and can replace the traditional rolling lubricating oil which pollutes the environment more seriously to a certain extent, and is used for process lubrication in the hot rolling process of plate and strip steel , to promote energy saving and emission reduction and environmental protection production in the strip rolling process.

Description

technical field [0001] The invention relates to the technical field of lubrication, which is used for process lubrication in the hot rolling process of plate and strip steel, in particular to a method for preparing nano-MoS by polymerization of dopamine 2 -Al 2 o 3 Method for compound rolling lubricants. Background technique [0002] Appropriate process lubrication technology in the hot rolling process of strip steel can effectively reduce friction, reduce rolling force, increase reduction rate, improve surface quality, and reduce energy consumption. The traditional rolling lubricating oil has serious environmental pollution, worsens the production environment, and the waste oil treatment cost is high, which does not meet the environmental protection requirements of energy saving and emission reduction. With the development of nanotechnology in recent years, nanoparticles with unique physical and chemical properties have been used more and more in the field of process lub...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/04C10N30/06
CPCC10M169/048C10M2201/062C10M2201/066C10M2201/085C10M2207/022C10M2209/104C10M2213/062C10M2215/042C10M2217/046C10M2219/044C10M2227/061
Inventor 孙建林贺佳琪唐华杰孟亚男
Owner UNIV OF SCI & TECH BEIJING
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