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Graphene anticorrosive paint and preparation method thereof

A technology of anti-corrosion coatings and graphene, applied in anti-corrosion coatings, epoxy resin coatings, polyurea/polyurethane coatings, etc., to achieve the effects of repairing void defects, enhancing compactness, and enhancing anti-corrosion performance

Inactive Publication Date: 2020-09-11
广东烯创科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a graphene anti-corrosion coating for the problems existing in the current traditional technology to solve the traditional technical problems, which has a better anti-corrosion effect

Method used

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  • Graphene anticorrosive paint and preparation method thereof
  • Graphene anticorrosive paint and preparation method thereof
  • Graphene anticorrosive paint and preparation method thereof

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preparation example Construction

[0040] The present invention also provides a kind of preparation method of graphene anticorrosion coating, comprises following preparation steps:

[0041] S1: dissolving cellulose ether and potassium silicate in water respectively to form a mixed solution, then adding graphene to the above mixed solution, and stirring evenly to obtain a graphene mixed solution;

[0042] S2: Dissolve water-based polyurethane resin and water-based epoxy resin in water, add wetting and dispersing agent, filler, γ-glycidyl etheroxypropyl trimethoxysilane in sequence while stirring, and stir evenly to form a resin mixture;

[0043] S3: Stir and disperse the graphene mixed solution, hydrophobic silica material, defoamer, and film-forming aid in sequence for 20-40 minutes, and let stand for 10-20 minutes to obtain the graphene anti-corrosion coating.

[0044] Compared with the prior art, the present invention has the following beneficial effects:

[0045] 1. The present invention uses cellulose ethe...

Embodiment 1

[0049] A kind of graphene anticorrosion paint, comprises the component of following parts by weight:

[0050] 20 parts of water-based polyurethane resin; 10 parts of water-based epoxy resin; 5 parts of graphene; 1 part of cellulose ether; 0.1 part of potassium silicate; 1 part of hydrophobic silica material; 0.5 parts; 1 part of coalescent; 8 parts of filler; 0.1 part of wetting and dispersing agent; 0.1 part of defoamer; 5 parts of water.

[0051] The graphene anti-corrosion coating is prepared through the following steps:

[0052] S1: dissolving cellulose ether and potassium silicate in water respectively to form a mixed solution, then adding graphene to the above mixed solution, and stirring evenly to obtain a graphene mixed solution;

[0053] S2: Dissolve water-based polyurethane resin and water-based epoxy resin in water, add wetting and dispersing agent, filler, γ-glycidyl etheroxypropyl trimethoxysilane in sequence while stirring, and stir evenly to form a resin mixtur...

Embodiment 2

[0057] Different from embodiment 1, the graphene anticorrosion coating of embodiment 2 comprises the component of following weight portion:

[0058] 30 parts of water-based polyurethane resin; 18 parts of water-based epoxy resin; 10 parts of graphene; 3 parts of cellulose ether; 0.5 parts of potassium silicate; 2 parts of hydrophobic silica material; γ-glycidyl etheroxypropyl trimethoxysilane 1 part; 3 parts of coalescent; 13 parts of filler; 0.5 part of wetting and dispersing agent; 0.5 part of defoamer; 15 parts of water.

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Abstract

The invention relates to a graphene anticorrosive coating and a preparation method thereof. The graphene anticorrosive coating comprises the following components: waterborne polyurethane resin; an aqueous epoxy resin; graphene; a cellulose ether; potassium silicate; a hydrophobic silica material; gamma-glycidoxypropyltrimethoxysilane; a coalescing agent; a filler; a wetting dispersant; a defoamerand water. According to the invention, the cellulose ether, the potassium silicate and other substances are mixed; the dispersity of the graphene can be effectively improved; by dispersing the graphene into the water-based resin, interface bonding strength is enhanced, the void defect of the coating material is repaired, the compactness of the coating material is substantially enhanced, the shielding effect on a corrosion medium is improved, the corrosion resistance is enhanced, and the gamma-glycidoxypropyltrimethoxysilane is added so as to improve the physical properties and the water resistance of the water-based coating material and the water-based adhesive system, and improve the storage stability and the mechanical property.

Description

technical field [0001] The invention relates to the technical field of anti-corrosion coatings, in particular to a graphene anti-corrosion coating and a preparation method thereof. Background technique [0002] The arrangement of carbon atoms in graphene is the same as that of graphite monoatomic layer, which is bonded by sp2 hybrid orbitals, and has the following characteristics: carbon atoms have 4 valence electrons, of which 3 electrons form sp bonds, that is, each carbon atom has Donate an unbonded electron located in the pz orbital, the pz orbital of the adjacent atom is perpendicular to the plane to form a π bond, and the newly formed π bond is in a half-filled state. Studies have confirmed that the coordination number of carbon atoms in graphene is 3, the bond length between every two adjacent carbon atoms is 1.42×10 meters, and the angle between bonds is 120°. In addition to the honeycomb layered structure in which σ bonds are linked with other carbon atoms to form ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D163/00C09D5/08C09D7/61C09D7/63C09D7/65C09D7/62
CPCC08K2003/2241C08K2003/265C08K2201/014C08L2205/03C09D5/08C09D175/04C09D7/61C09D7/62C09D7/63C09D7/65C08L63/00C08L1/26C08K13/06C08K9/04C08K3/34C08K5/5435C08K5/053C08K5/06C08K5/05C08K3/36C08K3/26C08K3/22
Inventor 高畅
Owner 广东烯创科技有限公司
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