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Waterborne nano long-acting corrosion-resistant finishing coat and preparation method thereof

A long-term anti-corrosion, nano-technology, applied in anti-corrosion coatings, coatings, etc., to achieve the effect of strong anti-corrosion ability, strong construction adaptability, and strong bonding ability

Active Publication Date: 2017-12-01
广东绿色大地化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, the grafting of zinc-containing complex polymers onto the surface of nano-silica to improve the anticorrosion performance of coatings has not been reported.

Method used

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  • Waterborne nano long-acting corrosion-resistant finishing coat and preparation method thereof
  • Waterborne nano long-acting corrosion-resistant finishing coat and preparation method thereof
  • Waterborne nano long-acting corrosion-resistant finishing coat and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A water-based nano long-lasting anti-corrosion finish paint, which is composed of two components A and B, and the A component is composed of the following raw materials in parts by weight: 30 parts of acrylic modified polyurethane emulsion, modified nano silica sol 15 parts, 1 part of defoamer BYK066N, 0.5 parts of leveling agent EFKA3777, 10 parts of isopropanol, 0.5 parts of thickener, 2 parts of wetting agent 608, the rest of deionized water; the B component is water-based Polyisocyanate;

[0041] Wherein, described acrylic acid modified polyurethane emulsion is prepared by the following method:

[0042] (1) Mix and stir 20 parts of hydroxypropyl polydimethylsiloxane and 30 parts of toluene diisocyanate, gradually raise the temperature to 100°C for 1 hour, add 5 parts of polyethylene glycol and 3 parts of trimethylolpropane, and continue stirring , react for 1-2h to obtain a mixture;

[0043] (2) 5 parts of acrylic acid monomers and 1 part of benzoyl peroxide are a...

Embodiment 2

[0060] A water-based nano long-lasting anti-corrosion finish paint, which is composed of two components A and B, and the A component is composed of the following raw materials in parts by weight: 40 parts of acrylic modified polyurethane emulsion, modified nano silica sol 10 parts, 0.5 parts of defoamer BYK066N, 0.3 parts of leveling agent EFKA3777, 5 parts of isopropanol, 0.8 parts of thickener, 1 part of wetting agent 608, and the balance of deionized water; the B component is Water-based polyisocyanate;

[0061] Wherein, described acrylic acid modified polyurethane emulsion is prepared by the following method:

[0062] (1) Mix and stir 22 parts of hydroxypropyl polydimethylsiloxane and 35 parts of toluene diisocyanate, gradually raise the temperature to 100°C for 1 hour, add 8 parts of polyethylene glycol and 1 part of trimethylolpropane, and continue stirring , react for 1-2h to obtain a mixture;

[0063] (2) 10 parts of acrylic acid monomers and 0.5 parts of benzoyl per...

Embodiment 3

[0080] A water-based nano-long-lasting anti-corrosion finish paint, which is composed of two components A and B, and the A component is composed of the following raw materials in parts by weight: 35 parts of acrylic modified polyurethane emulsion, modified nano-silica sol 20 parts, 0.8 parts of defoamer BYK066N, 0.8 parts of leveling agent EFKA3777, 8 parts of isopropanol, 1 part of thickener, 3 parts of wetting agent 608, and the balance of deionized water; the B component is Water-based polyisocyanate;

[0081] Wherein, described acrylic acid modified polyurethane emulsion is prepared by the following method:

[0082] (1) Mix and stir 25 parts of hydroxypropyl polydimethylsiloxane and 35 parts of toluene diisocyanate, gradually raise the temperature to 100°C for 1 hour, add 10 parts of polyethylene glycol and 5 parts of trimethylolpropane, and continue stirring , react for 1-2h to obtain a mixture;

[0083](2) 10 parts of acrylic acid monomers and 0.5 parts of benzoyl pero...

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Abstract

The invention belongs to the technical field of corrosion-resistant coatings, and particularly relates to waterborne nano long-acting corrosion-resistant finishing coat and a preparation method thereof. The finishing coat consists of a component A and a component B. The component A consists of the following raw materials in parts by weight: 30-40 parts of acrylic acid modified polyurethane emulsion, 10-20 parts of modified nano silicon dioxide sol, 0.5-1 part of a defoaming agent, 0.3-0.8 part of a leveling agent, 5-10 parts of a cosolvent, 0.5-1 part of a thickening agent, 1-3 parts of a wetting agent and the balance of deionized water. The component B is a waterborne curing agent. The waterborne nano long-acting corrosion-resistant finishing coat has the advantages of long-lasting and excellent corrosion resistance, high substrate adhesion, high hardness, excellent friction resistance, excellent salt fog resistance, high construction adaptability and the like. The preparation method is simple, the cost is low, operation is facilitated, the waterborne nano long-acting corrosion-resistant finishing coat is environmentally friendly and pollution-free, a coated film is dry quickly, and the construction period is short.

Description

technical field [0001] The invention belongs to the technical field of anti-corrosion coatings, and in particular relates to a water-based nano long-acting anti-corrosion finish paint and a preparation method thereof. Background technique [0002] Metal components are mostly made of carbon steel, stainless steel and other materials. Metal corrosion has brought huge economic losses to human beings. At present, the annual loss caused by metal corrosion accounts for about 5% of the world's gross product. In order to prevent and slow down corrosion, many anti-corrosion methods have been developed successively, among which the protection of anti-corrosion materials is the most convenient and economical. General anti-corrosion materials, such as chlorinated rubber, epoxy miracic iron and epoxy coatings, etc., only have shielding protection, and solvent-based coatings will cause VOC (volatile organic compound) emissions after coating, polluting the environment, and harming the env...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/08C09D7/12C09D151/08C08F120/28C08F283/00C08F220/06C08G18/32C08G18/48C08G18/61C08G18/66C08G83/00
CPCC08F120/28C08F283/006C08G18/3206C08G18/4825C08G18/61C08G18/6677C08G83/008C08K3/36C08K7/18C08K9/08C08K2201/011C09D5/08C09D151/08C08F220/06
Inventor 肖洪健谢秋梅
Owner 广东绿色大地化工有限公司
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