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Nanometer hybrid material-modified epoxy resin self-lubricating composite coating layer and preparation method thereof

A technology of nano-hybrid materials and epoxy resin, which is applied in the direction of epoxy resin coating, coating, etc., can solve the problem of affecting the quality and service life of solid lubricating coating, it is difficult to ensure the uniform distribution of lubricant, and the amount of solid lubricant added is large And other problems, to achieve outstanding anti-friction and anti-wear performance, excellent anti-friction performance, easy to peel effect

Active Publication Date: 2018-11-06
名畔科技(镇江)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, under the existing technology, there are still deficiencies in the polymer resin-based solid lubricating coating: the solid lubricant is added in a large amount in the resin, and it is easy to precipitate, and it is often difficult to ensure the uniform distribution of the lubricant in the coating, thereby affecting the solid lubricating coating. Layer quality and lifetime

Method used

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  • Nanometer hybrid material-modified epoxy resin self-lubricating composite coating layer and preparation method thereof
  • Nanometer hybrid material-modified epoxy resin self-lubricating composite coating layer and preparation method thereof
  • Nanometer hybrid material-modified epoxy resin self-lubricating composite coating layer and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0027] (1) First prepare 30 mL of an aqueous solution of graphene oxide with a concentration of 0.5 mg / mL, then add 0.03 g of carbon nanotubes, and ultrasonically mix until uniform. Hours, after natural cooling, freeze-dry overnight to obtain a carbon nanotube / graphene oxide hybrid material.

[0028] figure 1 Field emission scanning electron microscope topography of the prepared carbon nanotube / graphene oxide hybrid material. It can be seen that there is no agglomeration phenomenon of carbon nanotubes, and they are uniformly composited with graphene oxide.

[0029] (2) According to the mass ratio of carbon nanotube / graphene oxide hybrid material and tetrathiomolybdate ammonium is 1:3, 0.012g carbon nanotube / graphene oxide hybrid material and 0.036g tetrathiomolybdate Ammonium is dispersed in N,N-dimethylformamide solvent, ultrasonically dispersed and mixed evenly. Continue to add 0.2 mL of hydrazine hydrate dropwise, place the obtained mixed solution in a 50 mL reaction ket...

Embodiment 2

[0032] Weigh 1 g of epoxy resin and curing agent respectively according to the mass ratio of 1:1. First, the epoxy resin was dissolved in 20 mL of a mixed solution of absolute ethanol and acetone with a volume ratio of 1:1, and the mixture was evenly mixed by magnetic stirring. Next, add 1g of curing agent into the above mixed solvent, continue to stir, and mix evenly. Finally, the known mixed solution was coated on the surface of the substrate by a spray gun, placed in a vacuum drying oven, and cured for molding. The curing temperature was 110° C. and the curing time was 2 hours to obtain coating A.

Embodiment 3

[0034] (1) First prepare 30 mL of graphene oxide aqueous solution with a concentration of 0.5 mg / mL, then add 0.06 g of carbon nanotubes, ultrasonically mix until uniform, put the obtained solution in a 50 mL reactor, and conduct a hydrothermal reaction at 200 ° C for 24 hour, after natural cooling, freeze-dry overnight to obtain carbon nanotube / graphene oxide hybrid material;

[0035] (2) Disperse 0.012g of carbon nanotubes / graphene oxide and 0.012g of ammonium tetrathiomolybdate in N,N-dimethylformamide solvent according to the mass ratio of 1:1, ultrasonically disperse and mix evenly, and continue to drop Add 0.1mL of hydrazine hydrate, put the obtained mixed solution in a 50mL reaction kettle, and conduct a hydrothermal reaction at 220°C for 24 hours. After natural cooling, centrifuge, wash repeatedly with deionized water and absolute ethanol several times, and dry. A carbon nanotube / graphene oxide / molybdenum disulfide nano-hybrid material is obtained.

[0036] (3) Weigh ...

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Abstract

The invention provides a nanometer hybrid material-modified epoxy resin self-lubricating composite coating layer and a preparation method thereof. The preparation method comprises the following stepsof firstly, preparing a carbon nanotube / graphene oxide / molybdenum disulfide nanometer hybrid material by a hydrothermal method, and adding the carbon nanotube / graphene oxide / molybdenum disulfide nanometer hybrid material into epoxy resin, a curing agent and an organic solvent, so as to obtain a mixed solution; spraying the mixed solution onto a substrate, curing and forming, so as to obtain an epoxy resin self-lubricating composite coating layer with high abrasion-reduction property and abrasion-resistant property. The nanometer hybrid material-modified epoxy resin self-lubricating composite coating layer has the advantages that the preparation method is novel; the abrasion-reduction property and abrasion-resistant property of the epoxy resin coating layer are enhanced by preparing the carbon nanotube / graphene oxide / molybdenum disulfide nanometer hybrid material for the first time; the conditions are mild, the operation is simple, and the large-area abrasion-reduction and abrasion-resistant coating layer is easy to prepare, and is suitable for large-scale production; the obtained composite coating layer is dense and uniform, and the lower friction coefficient and higher abrasion-resistant property are realized.

Description

technical field [0001] The invention relates to the technical field of solid lubricating materials, in particular to a carbon nanotube / graphene oxide / molybdenum disulfide nano-hybrid material modified filled epoxy resin self-lubricating composite coating and a preparation method thereof. Background technique [0002] With the rapid development of aerospace and space technology, the friction of mechanical devices under harsh conditions, especially in high vacuum, high speed, high load, high temperature and other environments, has exceeded the limit of use of lubricating oil or grease. Traditional lubrication conditions are difficult Satisfied, solid lubricating coatings have become a research hotspot because they can solve the above problems. [0003] As an excellent polymer material, epoxy resin has been widely used in different fields such as electronics, electrical appliances, and civil engineering. It has excellent adhesion, corrosion resistance, mechanical strength, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/61
CPCC08K2003/3009C08K2201/011C09D7/61C09D7/70C09D163/00C08K3/30C08K3/041C08K3/042C08K7/00
Inventor 陈贝贝李祥贾雨晗张梦杰李晓芳
Owner 名畔科技(镇江)有限公司
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