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Oily-to-aqueous epoxy anti-rust prime coat and preparation method thereof

A technology of anti-rust primer and water-based epoxy resin, applied in the direction of epoxy resin coating, anti-corrosion coating, coating, etc., can solve the problems of difficult promotion and application, low hardness of paint film, short development history, etc., and achieve good adhesion Focus on, broad application prospects, strong anti-corrosion effect

Active Publication Date: 2015-11-04
镇江德昇新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its short development history, people do not have a correct understanding of it. So far, my country has not issued a national standard for water-based industrial anti-corrosion coatings. In addition, some of its own characteristics (slow drying time, paint film hardness low) and people's long-term habit of using solvent-based coatings, making its promotion and application encounter many difficulties

Method used

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  • Oily-to-aqueous epoxy anti-rust prime coat and preparation method thereof
  • Oily-to-aqueous epoxy anti-rust prime coat and preparation method thereof
  • Oily-to-aqueous epoxy anti-rust prime coat and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] An oil-based water-based epoxy antirust primer, consisting of component A and component B, the mass ratio of component A to component B is 5:1; by mass fraction, wherein: Components include: 30% water-based epoxy resin curing agent, 5% additives, 45% anti-rust pigment and 20% deionized water; component B includes: 92% solvent-based epoxy resin and 8% epoxy reactive diluent.

[0024] The composition of the auxiliary agent is a dispersant, a wetting agent, a defoamer, an anti-flash corrosion agent, a leveling agent, a stabilizer and a thickener, and the mass ratios of various components in the auxiliary agent to the first component are respectively 0.5 %, 0.2%, 0.3%, 1.0%, 0.2%, 2%, 0.8%.

[0025] The water-based epoxy resin curing agent is a water-dilutable amine curing agent without surfactant, and the amine value of the water-based epoxy resin curing agent is 160.

[0026] The anti-rust pigment is a combination of mica iron oxide, zinc phosphate, zinc oxide, composit...

Embodiment 2

[0038] An oil-based water-based epoxy antirust primer, consisting of component A and component B, the mass ratio of component A to component B is 7:1; by mass fraction, wherein: Components include: 35% water-based epoxy resin curing agent, 4% additives, 40% anti-rust pigments and 21% deionized water; component B includes: 90% solvent-based epoxy resin and 10% epoxy reactive diluent.

[0039] The composition of the above-mentioned auxiliary agent is dispersant, wetting agent, defoamer, anti-flash corrosion agent, leveling agent, stabilizer and thickener, and the mass ratio of each composition in the auxiliary agent to the first component is 0.5% respectively , 0.2%, 0.3%, 1.0%, 0.2%, 1%, 0.8%.

[0040] The water-based epoxy resin curing agent is a water-dilutable amine curing agent without surfactant, and the amine value of the water-based epoxy resin curing agent is 220.

[0041] The anti-rust pigment is a composition of mica iron oxide, zinc phosphate, zinc oxide, composite i...

Embodiment 3

[0049] An oil-based water-based epoxy antirust primer, consisting of a component and a component B, the mass ratio of the component A to the component B is 6:1; by mass fraction, wherein: Components include: 30% water-based epoxy resin curing agent, 6% additives, 42% anti-rust pigment and 22% deionized water; component B includes: 91% solvent-based epoxy resin and 9% epoxy reactive diluent.

[0050] The above additives are composed of dispersant, wetting agent, defoamer, anti-flash corrosion agent, leveling agent, stabilizer and thickener, and the mass ratio of various components in the additive to the component A is 0.5% respectively , 0.2%, 0.3%, 1.5%, 0.5%, 2%, 1%.

[0051] The water-based epoxy resin curing agent is a water-dilutable amine curing agent without surfactant, and the amine value of the water-based epoxy resin curing agent is 190.

[0052] The anti-rust pigment is a combination of mica iron oxide, zinc phosphate, zinc oxide, composite iron-titanium powder and...

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Abstract

The present invention discloses an oily-to-aqueous epoxy anti-rust prime coat and a preparation method thereof, and belongs to the technical field of heavy anti-corrosion coating materials. The oily-to-aqueous epoxy anti-rust prime coat comprises a component A and a component B according to a mass ratio of 5:1-7:1, wherein the component A comprises, by mass, 30-35% of an aqueous epoxy resin curing agent, 4-6% of an auxiliary agent, 40-45% of anti-rust pigment and 20-25% of deionized water, and the component B comprises, by mass, 90-92% of a solvent type epoxy resin and 8-10% of an epoxy active diluent. According to the present invention, compared with the existing aqueous epoxy anti-rust prime coat and the existing solvent type epoxy anti-rust prime coat, the oily-to-aqueous epoxy anti-rust prime coat of the present invention has the better resistance and the better construction performance; and the oily-to-aqueous epoxy anti-rust prime coat has the unique advantages in the construction field, and provides the environmental protection property and the construction safety exceeding the existing solvent type epoxy anti-rust prime coat.

Description

technical field [0001] The invention belongs to the technical field of heavy-duty anti-corrosion coatings, and in particular relates to an oil-based modified water-based epoxy antirust primer and a preparation method thereof. Background technique [0002] Epoxy anti-corrosion primers are widely used in heavy anti-corrosion fields such as ships, inner and outer walls of pipelines, mine steel frames, aircraft, and high-speed trains. In order to obtain a better anti-corrosion effect, the existing epoxy anti-corrosion primers are generally added with chromium-containing anti-rust pigments, such as chromate containing hexavalent chromium, to improve anti-corrosion performance. Disclosed two-component anticorrosion paint as Chinese patent application publication CN101457116A, CN100526406C, have adopted zinc yellow, chrome yellow, strontium yellow, zinc phosphochromate etc. Harmful to human body, especially hexavalent chromium is carcinogenic. Heavy metal pigments such as chromiu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/12C09D5/08
Inventor 李洪岩
Owner 镇江德昇新材料科技有限公司
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