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Water-based anticorrosive coating and preparation method thereof

A water-based technology for anti-corrosion coatings, applied in anti-corrosion coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of the utilization efficiency of shielding materials in polluted environments, the toughness of zinc-rich coatings, and low adhesion, and achieve convenient operation and high technology easy effect

Active Publication Date: 2017-10-10
SHIJIAZHUANG TIEDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of low toughness and adhesion of the existing zinc-rich coatings, environmental pollution and low utilization efficiency of shielding materials in anti-corrosion coatings, a water-based anti-corrosion coating and its preparation method are provided

Method used

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  • Water-based anticorrosive coating and preparation method thereof
  • Water-based anticorrosive coating and preparation method thereof

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preparation example Construction

[0076] The embodiments of the present invention provide a water-based anti-corrosion coating and a preparation method thereof. The conductive polymer / fullerene composite modified water-based anti-corrosion coating is prepared by stirring and mixing components A and B uniformly; the component A Including the following components: water-based isocyanate curing agent, zinc powder, defoamer, wetting and dispersing agent, anti-sedimentation thixotropic agent, conductive polymer / fullerene composite material, anti-flash rust agent, leveling agent, adhesion promotion agent, anti-rust pigment.

[0077] Preferably, the curing agent is at least one of water-based isocyanate curing agents BA305, XP2451, and XP 2487. BA305 is a crosslinking agent for water-based coatings. Even under pre-diluted conditions, the coating film is still transparent and bright; XP 2451 and XP 2487 is used as a curing agent component of water-based two-component coatings and sealers, and also as an additive to en...

Embodiment 1

[0090] In terms of parts by mass, the raw material formula of component A consists of: 15 parts of BA305, 55 parts of 400 mesh zinc powder, 5 parts of EL-2607, 5 parts of SN-5040, 2 parts of organic bentonite, 2 parts of conductive polymer / fullerene parts, ZT-709 0.5 parts, SN-612 0.5 parts, kh560 3 parts, zinc phosphate 10 parts. The raw material formula of component B is composed of: 6 parts of methyl methacrylate, 20 parts of butyl acrylate, 16 parts of styrene, 15 parts of epoxy resin, 1 part of methacrylic acid, 1 part of acrylamide, and 1.5 parts of hydroxyethyl acrylate , 1.5 parts of emulsifier, 4 parts of initiator, 120 parts of deionized water, 0.4 part of ammonia water.

[0091] Follow the steps below to prepare water-based anti-corrosion coatings

[0092] Step 1. Add fullerene to the hydrochloric acid solution, and carry out ultrasonic dispersion for 1 hour. After the dispersion is uniform, add polyaniline, polythiophene, polypyrrole and its derivative monomers, s...

Embodiment 2

[0101] In terms of parts by mass, the raw material formula of component A consists of: 20 parts of XP2451, 15 parts of 600-mesh zinc powder, 1 part of DF-103, 1 part of SN-5040, 1 part of organic bentonite, 0.5 parts of fumed silica, conductive 2.5 parts of polymer / fullerene composite material, 0.7 parts of ZT-709, 0.8 parts of SN-612, 3.5 parts of kh550, 10 parts of zinc phosphate, 5 parts of iron and titanium powder; component B is made of the following parts by mass: methyl 13 parts of methyl acrylate, 25 parts of butyl acrylate, 12 parts of styrene, 30 parts of epoxy resin, 6 parts of methacrylic acid, 5 parts of acrylamide, 2 parts of hydroxyethyl acrylate, 4 parts of emulsifier, 5 parts of initiator , 130 parts of deionized water, 0.4 part of ammonia water.

[0102] Follow the steps below to prepare water-based anti-corrosion coatings

[0103] Step 1. Add fullerene to hydrochloric acid solution, and carry out ultrasonic dispersion for 30 minutes. After the dispersion is...

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Abstract

The invention relates to the coating field, and particularly discloses a water-based anticorrosive coating and a preparation method thereof. The water-based anticorrosive coating comprises a component A and a component B. The component A comprises the following components by mass: 15-25 parts of a water-based isocyanate curing agent, 15-55 parts of zinc powder, 1-5 parts of a defoaming agent, 1-5 parts of a wetting dispersing agent, 0.9-2 parts of an anti-sinking thixotropic agent, 0.1-5 parts of a conductive macromolecule / fullerene composite material, 0.5-1 part of a flash-rust resistant agent, 0.5-1 part of a flatting agent, 1-3.5 parts of an adhesive force accelerant, and 5-15 parts of a rust resisting pigment; and the component B comprises the following components by mass: 5-13 parts of methyl methacrylate, 15-25 parts of butyl acrylate, 7-16 parts of styrene, 15-30 parts of an epoxy resin, 1-6 parts of a methacrylic acid, 1-5 parts of acrylamide, 1.5-2 parts of hydroxyethyl acrylate, 0.5-5 parts of an emulgator, 0.5-5 parts of an initiator, 80-130 parts of deionized water, and 0.1-1 part of ammonia water. The water-based anticorrosive coating is prepared by stirring and mixing the prepared component A and component B according to the mass ratio of 8-16:1, and has the advantages of strong shielding property, excellent corrosion resistance, environmental protection, good flexibility and strong adhesive force.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to a water-based anticorrosion coating and a preparation method thereof. Background technique [0002] Corrosion is a phenomenon in which metal materials undergo chemical or electrochemical interactions with the surrounding medium to become metal compounds and are destroyed. Corrosion will cause huge losses every year in the world, especially for my country, which temporarily ranks first in the world in steel production. On average, about 10-20% of the total steel production is corroded every year, and the direct economic losses caused account for about 10% of the production. About 6% of the total value, so anti-corrosion treatment is particularly important. [0003] Zinc-rich coatings use the anti-corrosion mechanism of cathodic protection for iron due to the lower electrode potential of zinc, and become a kind of anti-corrosion coating with excellent performance. In the tradit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D5/10C08F283/10C08F220/14C08F220/18C08F212/08C08F220/06C08F220/56C08F220/28C08G18/63
CPCC08F283/10C08G18/63C08K2003/0893C08K2003/328C09D5/084C09D5/10C09D175/04C08L79/02C08L65/00C08L79/04C08K3/04C08K3/08C08K3/346C08K3/32C08F220/1804
Inventor 肖凤娟岳林郭明阳王俊忠李昕心薄荣琪李望隆郝玉影杨桂枝刘乔
Owner SHIJIAZHUANG TIEDAO UNIV
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