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High-performance water-based industrial anticorrosive paint and preparation method thereof

An anti-corrosion coating, high-performance technology, applied in the field of coatings, can solve the problems of serious environmental pollution, high VOC content, slow paint film drying, etc., to achieve the effect of high solid content, low environmental pollution, and good adhesion

Inactive Publication Date: 2017-10-13
杭州鼎时新材料研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing anti-corrosion coatings are usually produced by epoxy ester, which can meet the coating and protection requirements of steel structures and auto parts surfaces; however, the paint film dries slowly, and it is easy to bite the bottom when it is matched with a topcoat, and it is diluted with organic solvents. agent, high VOC content, serious environmental pollution

Method used

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  • High-performance water-based industrial anticorrosive paint and preparation method thereof
  • High-performance water-based industrial anticorrosive paint and preparation method thereof
  • High-performance water-based industrial anticorrosive paint and preparation method thereof

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preparation example Construction

[0044] The preparation method of the emulsifier BTCL that the present invention uses is as follows:

[0045] 1. React cardanol and maleic anhydride with a molar ratio of 1:1 at 160-170°C. When the acid value reaches 120-125mgKOH / g, it is the end of the reaction, and the monovalent cardanol maleic anhydride required by the present invention is obtained. acid monoester;

[0046] 2. Put the monobasic acid monoester of cardanol maleic anhydride and polyethylene glycol in a molar ratio of 1:1.1 into the reactor, add 0.2% of the amount of concentrated sulfuric acid as a catalyst for the reaction, and heat it at 200-220°C Reflux esterification for 3 hours, that is, the acid value ≤ 1mgKOH is qualified.

[0047] 3. After the central control is qualified, the temperature is lowered to below 180°C, vacuumized, and the xylene used for reflux is extracted to obtain the emulsifier BTCL of the present invention.

[0048] The specific formula of emulsifier BTCL is as follows:

[0049] The...

Embodiment 1

[0054] A kind of high-performance water-based industrial anticorrosion coating, formula is as follows (weight part):

[0055]

[0056]

[0057] Wherein, the mass solid concentration of described epoxy ester resin is 55%, comprises the component of following parts by weight:

[0058]

[0059] Wherein, the mass solid concentration of the buoyant liquid is 2±0.1%, including the following components in parts by weight:

[0060] Emulsifier BTCL 20;

[0061] Deionized water 980;

[0062] The preparation method is as follows:

[0063] (1) Add the solvent of 5-7% of the formula amount under the stirring of epoxy ester resin and stir evenly, then add the anti-sedimentation agent, 1000r / min high-speed dispersion for 10min;

[0064] (2) Then add dispersants, pigments and fillers, and anti-rust pigments, and disperse at a high speed of 1000r / min for 20min to obtain a slurry;

[0065] (3) Grind the slurry until the fineness reaches 50 μm, put it into the paint tank, add drier,...

Embodiment 2

[0074] A kind of high-performance water-based industrial anticorrosion coating, formula is as follows (weight part):

[0075]

[0076] Wherein, the mass solid concentration of described epoxy ester resin is 56%, comprises the component of following parts by weight:

[0077]

[0078]

[0079] Wherein, the mass solid concentration of the buoyant liquid is 2±0.1%, including the following components in parts by weight:

[0080] Emulsifier BTCL 20;

[0081] Deionized water 980.

[0082] The preparation method is as follows:

[0083] (1) Add the solvent of 5-7% of the formulation amount under the stirring of epoxy ester resin and stir evenly, then add the anti-sedimentation agent, and disperse at 800r / min for 15min at high speed;

[0084] (2) Add dispersants, pigments and fillers, anti-rust pigments, and disperse at a high speed of 800r / min for 15min to obtain a slurry;

[0085] (3) Grind the slurry until the fineness reaches 50 μm, put it into the paint tank, add drier...

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Abstract

The invention provides a high-performance water-based industrial anticorrosive paint. The high-performance water-based industrial anticorrosive paint comprises the following components in parts by weight: 35-50 parts of epoxy ester resin, 7-9 parts of acrylic emulsion, 4-6 parts of cosolvent, 25-35 parts of pigment and filler, 8-16 parts of antirust pigment, 0.1-0.5 part of anti-settling agent, 0.1-0.5 part of dispersing agent, 0.1-0.5 part of defoaming agent, 0.2-1.0 part of dryer, 0.1-0.5 part of leveling agent and 15-25 parts of emulsifying water. The high-performance water-based industrial anticorrosive paint is high in solid content, low in volatile organic compound (VOC) content, favorable in adhesion, excellent in recoatability and favorable in chemical resistance, water resistance and salt mist resistance, and causes less environmental pollution. According to the invention, by using the specially designed epoxy ester resin and the preferable weather-resistant pigment and antirust pigment, a paint film has more excellent comprehensive properties such as fullness, adhesion, salt mist resistance, chemical resistance and the like, and especially, the salt mist resistance is greatly improved as compared with the existing epoxy ester resin.

Description

technical field [0001] The invention belongs to the field of coatings, in particular to a high-performance water-based industrial anticorrosion coating and a preparation method thereof. Background technique [0002] Anti-corrosion coatings, generally divided into conventional anti-corrosion coatings and heavy-duty anti-corrosion coatings, are an indispensable coating in paint coatings. Conventional anti-corrosion coatings play an anti-corrosion effect on metals under normal conditions and protect the service life of non-ferrous metals; A type of anti-corrosion coating that achieves a longer protection period than conventional anti-corrosion coatings. [0003] Existing anti-corrosion coatings are usually produced by epoxy ester, which can meet the coating and protection requirements of steel structures and auto parts surfaces; however, the paint film dries slowly, and it is easy to bite the bottom when it is matched with a topcoat, and it is diluted with organic solvents. a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/10C09D5/08C09D7/12
CPCC09D163/10C08K2003/2296C08L2205/03C09D5/08C08L93/04C08L71/02C08K13/02C08K3/22C08K5/06
Inventor 潘双喜李勇兵
Owner 杭州鼎时新材料研究院有限公司
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