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High-penetrability and low-surface treatment anti-corrosion coating

A technology of low surface treatment and anti-corrosion coatings, applied in anti-corrosion coatings, anti-fouling/underwater coatings, coatings, etc., can solve the problems of reducing protective performance, not belonging to protective anti-corrosion coatings, and easy aging, so as to reduce coating powder The effects of chemical and performance reduction, excellent weather resistance, and excellent flexibility

Inactive Publication Date: 2019-03-19
SHANGHAI HILONG SHINE NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the epoxy resin film is not resistant to the sun's ultraviolet light, it is easy to age, and it will gradually chalk over time to reduce the protective performance, so it needs to be used together with a weather-resistant topcoat
However, if it is used together with polyurethane resin with high weather resistance, due to the large molecular weight, the permeability will be poor, and the adhesion between the paint film and the surface of the metal substrate will be poor. Therefore, epoxy coatings used together with polyurethane resin do not belong to Better solution for protective anti-corrosion coatings for direct application in maintenance conditions

Method used

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  • High-penetrability and low-surface treatment anti-corrosion coating
  • High-penetrability and low-surface treatment anti-corrosion coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) A kind of anticorrosion coating with high permeability and low surface treatment, containing A component and B component, the weight percent of each raw material in the described A component is:

[0027] 30% of polyaspartic acid ester resin, described polyaspartic acid ester resin is the resin of low viscosity, solvent-free, with secondary amino group, and its NH equivalent is 250~300; Can adopt the trade mark ( Or model) is the polyaspartate resin of F421.

[0028] Aminoalkoxysilane 6%, the aminoalkoxysilane is a reactive bifunctional silane-primary amino group and / or a hydrolyzable ethoxysilyl group, which can be used by Momentive High-tech Materials (China) Co., Ltd. The A-1120 aminosilane coupling agent product produced, this is a kind of reactive bifunctional silane coupling agent, its reactivity duality makes it can be used as crosslinking agent, also can be used as the coating of the present invention Adhesion promoter.

[0029] Hydrophobic fumed silica 0.3...

Embodiment 2

[0051] (1) A kind of anticorrosion coating with high permeability and low surface treatment, containing A component and B component, the weight percent of each raw material in the described A component is:

[0052]

[0053]

[0054] The B component is an isocyanate resin, wherein:

[0055] Hexamethylene diisocyanate resin 70% (the raw material that adopts is with embodiment 1).

[0056] Diphenylmethane diisocyanate 20% (the raw material that adopts is with embodiment 1).

[0057] Solvent 10% (the raw material that adopts is with embodiment 1).

[0058] (2) The preparation method (with embodiment 1) of described high permeability low surface treatment anticorrosion paint.

[0059] (3) The using method of the high permeability low surface treatment anticorrosion coating

[0060] Before painting, the A component and the B component are mixed in a weight ratio of A:B=100:25.

Embodiment 3

[0062] (1) A kind of anticorrosion coating with high permeability and low surface treatment, containing A component and B component, the weight percent of each raw material in the described A component is:

[0063]

[0064] Component B is isocyanate resin

[0065] Hexamethylene diisocyanate resin 75% (the raw material that adopts is with embodiment 1).

[0066] Diphenylmethane diisocyanate 10% (the raw material that adopts is with embodiment 1).

[0067] Solvent 15% (the raw material that adopts is with embodiment 1).

[0068] (2) The preparation method (with embodiment 1) of described high permeability low surface treatment anticorrosion paint.

[0069] (3) The using method of the high permeability low surface treatment anticorrosion coating

[0070] Before painting, the A component and the B component are mixed in a weight ratio of A:B=100:20.

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Abstract

The invention discloses a high-penetrability and low-surface treatment anti-corrosion coating which comprises a component A and a component B. The component A comprises polyaspartic acid ester resin,amino alkoxy silane, hydrophobic fumed silica, solvents, defoaming agents, rutile titanium dioxide, ultra-fine aluminum triphosphate, ultra-fine barite powder, micron basalt scales and organic silicone modified acrylate polymer, and the component B comprises hexamethylene diisocyanate resin, diphenylmethane diisocyanate and solvents. When the coating is constructed, the components are mixed according to the weight ratio. The coating has high penetrability and combinability, low surface treatment requirement and excellent toughness, flexibility and weather resistance, is resistant to acid and alkali, water and dirt and adhesion, can effectively resist telescopic deformation of metal substrates at different temperatures and provides a new technical scheme for protection of metal structure devices in high chlorine ion corrosion environments, and ageing and performance reduction of the coating caused by ultraviolet rays are decreased.

Description

technical field [0001] The invention relates to the technical field of industrial coatings, and relates to the technical field of protecting carbon steel metal substrates from corrosion under maintenance conditions, especially in areas with heavy corrosive environments. Specifically, it is a high-permeability low surface treatment anti-corrosion coating . Background technique [0002] Many industrial settings today are of metal construction. It is a very important task to protect the industrial settings of these metal substrates. At present, coatings are generally used to protect the industrial settings of these metal substrates. Under normal conditions, the surface of the metal substrate needs to be treated more strictly when using paint to protect the metal substrate. For example, the surface treatment of the metal substrate is usually required to reach: surface cleanliness Sa2.5 level, surface roughness 40-80 microns, the surface salt content is less than 50 mg / square m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/02C09D133/04C09D5/08C09D5/16C09D7/61C09D7/63
CPCC08L2201/08C09D5/08C09D5/1662C09D5/1687C09D175/02C08L43/04C08K13/04C08K7/26C08K3/30C08K3/32C08K3/22
Inventor 刘强周宝菊丁武斌孙天顺
Owner SHANGHAI HILONG SHINE NEW MATERIAL
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