Fluoropolymer water-based anticorrosive paint

A technology of anti-corrosion coatings and polymers, applied in anti-corrosion coatings, fire-proof coatings, anti-fouling/underwater coatings, etc., can solve the problems of low cross-linking density, surface tension, low price, unfavorable pollutant adhesion, etc., and achieve excellent flexibility Effect

Active Publication Date: 2018-03-09
GUANGZHOU JOINTAS CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its polyurethane resin and acrylic resin are physically mixed, and its compatibility and crosslinking density are not ideal.
[0007] At present, resins with a single property can no longer meet the requirements of the coatings market. Fluorine-containing polyurethane modified acrylic resin water-based coatings have the special properties of polyurethane and fluorine atoms, high cross-linking density and low surface tension, which is not conducive to the adhesion of pollutants on the surface, and at the same time introduce acrylic resin with lower price, so that it has good economic and practical value

Method used

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  • Fluoropolymer water-based anticorrosive paint
  • Fluoropolymer water-based anticorrosive paint
  • Fluoropolymer water-based anticorrosive paint

Examples

Experimental program
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Effect test

Embodiment 1

[0038] Prepare the fluorine-containing polymer water-based resin A1, B1 or C1 according to the method in the applied invention patent "Fluorine-containing polyurethane modified acrylic water-based resin and its preparation method".

Embodiment 2

[0040] A fluoropolymer water-based anti-corrosion coating A1, which consists of 42.0 parts of fluoropolymer water-based resin A1, 2.0 parts of propylene glycol, 0.2 parts of wetting agent, 2.0 parts of dispersant, and 18.0 parts of antirust composite pigment by weight percentage , 12.0 parts of kaolin, 3.5 parts of mica powder, 6.0 parts of iron red, 0.3 parts of organic zinc chelate flash rust agent, 0.2 parts of defoamer, 0.2 parts of leveling agent, 0.1 part of pH regulator, 2.5 parts of propylene glycol methyl ether, 0.5 parts of anti-settling agent, 10.5 parts of deionized water; wherein, the antirust composite pigment consists of: 1.6 parts of zinc dinitrobenzoate, 9.0 parts of zinc phosphate, 3.2 parts of zinc molybdate, 4.2 parts of zinc aluminum phosphate hydrate share.

Embodiment 3

[0042]A fluorine-containing polymer water-based anti-corrosion coating B1, which is composed of 45.0 parts of fluorine-containing polymer water-based resin A1, 2.0 parts of propylene glycol, 0.2 parts of wetting agent, 1.8 parts of dispersant, and 22.0 parts of antirust composite pigment by weight percentage , 15.0 parts of kaolin, 2.5 parts of titanium dioxide, 0.8 parts of carbon black, 0.3 parts of organic zinc chelate flash rust agent, 0.2 parts of defoaming agent, 0.2 parts of leveling agent, 0.1 part of pH regulator, 2.0 parts of dipropylene glycol methyl ether , 0.4 parts of anti-settling agent, 7.5 parts of deionized water; wherein, the antirust composite pigment consists of: 2.0 parts of zinc dinitrobenzoate, 11.0 parts of zinc phosphate, 4.0 parts of zinc molybdate, aluminum zinc phosphate hydrate 5.0 servings.

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Abstract

The invention relates to fluoropolymer water-based anticorrosive paint. The fluoropolymer water-based anticorrosive paint comprises fluoropolymer water-based resin, zinc dinitrobenzoate, zinc phosphate, zinc molybdate, zinc aluminum phosphate hydrate, cosolvent, anti-flash-rust agent, assistants and deionized water. The fluoropolymer water-based resin is obtained through reaction among polyisocyanate, polyalcohol, hexafluoroisopropanol, oligomer polyalcohol, dimethylolpropionic acid, hydroxyethyl acrylate, acrylic acid type soft-hard monomers and neutralizers. Since the obtained fluoropolymerwater-based anticorrosive paint comprises low-surface-free-energy F-C chains, coatings have high flexibility, heat stability, ageing resistance, chemical inertness, hydrophobicity and corrosion resistance; the fluoropolymer water-based anticorrosive paint is widely applied to water, contamination and corrosion resistance of surfaces of steel structures and concrete in the fields of buildings, chemical engineering, petroleum, electricity, metallurgy, ships, transportation, spaceflight and the like.

Description

technical field [0001] The invention relates to a water-based anti-corrosion coating, in particular to a salt-spray-resistant and weather-resistant fluorine-containing polymer water-based anti-corrosion coating, which belongs to the technical field of water-based functional coatings. Background technique [0002] According to statistics, the metals that corrode and rust each year in the world account for more than 20% to 40% of the annual output, and more than 100 million tons of metals are scrapped due to corrosion every year, and the economic losses caused are about 1 trillion US dollars; The economic loss caused by metal corrosion accounts for about 1.5% to 3.5% of the gross national product. Since steel accounts for 95% of metal usage, and 70% of which is used in an atmosphere prone to rust, the corrosion protection of steel is of great significance. [0003] Coating is an indispensable material for protecting infrastructure in daily life. It is widely used in buildings...

Claims

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Application Information

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IPC IPC(8): C09D151/08C09D5/16C09D5/08C09D7/61C09D7/63C09D7/65
CPCC08K3/24C08K3/34C08K3/346C08K5/053C08K5/32C08K13/02C08K2003/2272C09D5/084C09D5/086C09D5/1687C09D5/18C09D151/08
Inventor 许钧强张武谢义鹏康伦国姚东生
Owner GUANGZHOU JOINTAS CHEM
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