A kind of low-gloss type water-based epoxy ester coating for steel structure and preparation method thereof

A low-gloss, steel structure technology, applied in the coating and other directions, can solve the problems of the original paint defoaming performance, the negative effect of the recoating performance, the peculiar smell, and the lack of low-gloss paint. Soft film gloss and good early water resistance

Active Publication Date: 2022-05-03
湘江涂料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has used xylene as reflux solvent, and contains benzene series in the coating, does not meet environmental protection requirement; The introduction of silicone resin has improved the water resistance of coating film, but the defoaming performance of original paint, the recoating performance of coating have negative effect Negative effect, thus affecting the construction adaptability of the original paint
[0006] The article "Preparation and Performance Research of High Salt Spray Resistance and High Gloss Surface-In-One Waterborne Automotive Paint" (Electroplating and Finishing 2019 No. 10) reported that the choice of high-selection high-refractive index epoxy ester modified acrylic resin 3EA42Y combined with chemically inert The ultra-fine barium sulfate powder material can improve the gloss of the paint film, but the 3EA42Y resin has a strong odor, and it does not disclose the preparation method of the 3EA42Y resin, nor does it involve low-gloss coatings

Method used

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  • A kind of low-gloss type water-based epoxy ester coating for steel structure and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] The low-gloss water-based epoxy ester coating for steel structures in this example consists of 312g of vinyl modified epoxy ester resin, 11g of dimethylethanolamine, 9g of ammonia water (28% by mass), and dispersant Dispex Ultra PX 4585 (Germany BASF) 4g, propylene glycol butyl ether 10g, drier ADDITOL VXW 6206 (Allnex Thailand) 3.6g, methyl ethyl ketone oxime 2.0g, AFCONA2502 (Efcona, Netherlands) 1.2g, lemon yellow 6.0g, iron red 1.0 g. Titanium dioxide 88g, MA-100 carbon black (produced by Mitsubishi, Japan) 5.0g, superfine barium sulfate (produced by Hunan Ruishi) 180g, defoamer TEGO Airex 902 W (produced by Evonik, Germany) 1.0g, anti-flash rust Agent FA179 (Deqian Hemings) 5.0g, BYK-333 leveling agent (Germany BYK) 1.5g, wetting agent ADDITOLXW 330 (Thailand allnex) 1.5g, thickener DeuRheo WT-105A ( Deqian Hemings) 2.0g and deionized water 500g prepared.

[0057] The preparation method of low light type water-based epoxy ester coating for steel structures of this...

Embodiment 2

[0064]The low-gloss water-based epoxy ester coating for steel structure in this embodiment consists of 312g of vinyl modified epoxy ester resin, 11g of dimethylethanolamine, 9g of ammonia (mass fraction is 28%), dispersant Tego Dispers 655 (Germany Win 4g, Propylene Glycol Butyl Ether 10g, Drier ADDITOL VXW 6206 (Allnex, Thailand) 3.6g, MEKOxime 2.0g, AFCONA2502 (Efcona, Netherlands) 1.2g, Lemon Yellow 6.0g, Iron Red 1.0 g, 88g of titanium dioxide, 5.0g of MA-100 carbon black (produced by Mitsubishi, Japan), 180g of superfine barium sulfate (produced by Hunan Ruishi), 1.0g of defoamer Foamex 845 (produced by Evonik, Germany), anti-flash rust agent FA179 (produced by Deqian Hemings) 5.0g, leveling agent BYK-333 (produced by BYK, Germany) 1.5g, wetting agent Vesmody_U605 (produced by Wanhua Chemical) 1.5g, thickener TEGO ViscoPlus 3000 (produced by Evonik, Germany) ) 2.0g and 500g deionized water.

[0065] During the preparation of vinyl-modified epoxy ester resin in this examp...

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Abstract

A low-gloss water-based epoxy ester coating for steel structures and a preparation method thereof, the coating is prepared from vinyl modified epoxy ester resin, pigments and fillers, auxiliary agents, cosolvents and deionized water; the vinyl The modified epoxy ester resin is prepared by the following method: first use bisphenol A type epoxy resin, dry oil fatty acid and catalyst for esterification, and then dilute it with glycidyl tertiary carbonic acid ester and ethylene glycol butyl ether. Prepolymer A: Esterification with alkenylphenol polyglycidyl ether, dry oil fatty acid, branched chain saturated fatty acid and catalyst, and then dilute with polyalkylene substituted single epoxy active diluent and ethylene glycol butyl ether Obtain prepolymer B; then carry out graft modification to prepolymer A and prepolymer B with terpene resin, liquid polybutadiene, vinyl monomer, initiator, obtain vinyl modified epoxy ester resin. The original coating paint of the invention has good storage stability, low gloss of the coating film, and safe and environment-friendly process materials.

Description

technical field [0001] The invention relates to a water-based epoxy ester paint and a preparation method thereof, in particular to a low-light water-based epoxy ester paint for steel structures and a preparation method thereof. Background technique [0002] According to the "Industrial Structure Adjustment Guidance Catalog (2019 Version)", steel structure buildings are industries that are encouraged to develop. The use of steel structures instead of reinforced concrete or brick-concrete structures is gradually increasing. However, high-gloss coatings on the surface of architectural steel structures will cause light pollution to a certain extent. [0003] With the development of society and the improvement of residents' living standards, the people's strong yearning for a better quality of life drives the improvement of environmental protection policies. Coating materials and coating processes are also becoming more and more environmentally friendly, so as to avoid adverse ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D151/08C09D147/00C09D145/00
CPCC09D151/08C08L47/00C08L45/00
Inventor 吴志高彭伟黎刘寿兵
Owner 湘江涂料科技有限公司
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