High-solid polyurethane finish paint and preparation method thereof

A polyurethane topcoat, high-solid technology, applied in the field of polyurethane topcoat, can solve problems such as environmental damage and human health damage, and achieve the effects of less volatilization of harmful substances, high solid content, and excellent mechanical properties

Inactive Publication Date: 2021-02-02
无锡福斯特涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the coating products on the market contain a large amount of solvents, which will volatilize a large amount of harmful substances during construction, which will cause serious damage to the environment and human health.

Method used

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  • High-solid polyurethane finish paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] This embodiment provides a technical solution: a high-solid polyurethane topcoat and its preparation method. The high-solid polyurethane topcoat comprises the following components by weight ratio: 105 parts of acrylic resin, 3 parts of leveling agent, silicone surfactant 3 parts, 8 parts of defoamer, 25 parts of metal tin drier, 250 parts of polyglycerol, 3 parts of diluent, 65 parts of coloring pigment, 25 parts of ultraviolet absorber, 7 parts of light stabilizer.

[0018] Among them, 2-(2-hydroxy-5-methylphenyl)benzotriazole is used as the ultraviolet absorber. The coloring pigment adopts organic pigment phthalocyanine green. The leveling agent adopts acrylic leveling agent. The diluent is polyurethane paint diluent mixed with cyclohexanone, butyl acetate and anhydrous xylene in a weight ratio of 1:2:1. Light stabilizer adopts TINUVIN 292 of German basf company. The metal tin drier is specifically dibutyltin dilaurate (DBTDL).

[0019] Acrylic resin is a general ...

Embodiment 2

[0025] This embodiment provides a technical solution: a high-solid polyurethane topcoat and a preparation method thereof. The high-solid polyurethane topcoat comprises the following components by weight ratio: 100 parts of acrylic resin, 1 part of leveling agent, and silicone surfactant 1 part, 5 parts of defoamer, 30 parts of metal tin drier, 300 parts of polyglycerol, 5 parts of thinner, 80 parts of coloring pigment, 30 parts of ultraviolet absorber, 10 parts of light stabilizer.

[0026] Among them, 2-(2-hydroxy-5-methylphenyl)benzotriazole is used as the ultraviolet absorber. The coloring pigment adopts organic pigment phthalocyanine blue. The leveling agent adopts acrylic leveling agent. The diluent is polyurethane paint diluent mixed with cyclohexanone, butyl acetate and anhydrous xylene in a weight ratio of 1:2:1. Light stabilizer adopts TINUVIN 292 of German basf company. The metal tin drier is specifically dibutyltin dilaurate (DBTDL).

[0027] see figure 1 , and...

Embodiment 3

[0032] This embodiment provides a technical solution: a high-solid polyurethane topcoat and its preparation method. The high-solid polyurethane topcoat comprises the following components by weight ratio: 110 parts of acrylic resin, 5 parts of leveling agent, silicone surfactant 5 parts, 10 parts of defoamer, 20 parts of metal tin drier, 200 parts of polyglycerol, 1 part of diluent, 50 parts of coloring pigment, 20 parts of ultraviolet absorber, 5 parts of light stabilizer.

[0033] Among them, 2-(2-hydroxy-5-methylphenyl)benzotriazole is used as the ultraviolet absorber. The coloring pigment adopts organic pigment phthalocyanine blue. The leveling agent adopts acrylic leveling agent. The diluent is polyurethane paint diluent mixed with cyclohexanone, butyl acetate and anhydrous xylene in a weight ratio of 1:2:1. Light stabilizer adopts TINUVIN 292 of German basf company. The metal tin drier is specifically dibutyltin dilaurate (DBTDL).

[0034] see figure 1 , and then fol...

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Abstract

The invention is applicable to the technical field of polyurethane finish paint, and provides high-solid polyurethane finish paint and a preparation method thereof. The high-solid polyurethane finishpaint is prepared from the following components in parts by weight: 100 to 110 parts of acrylic resin, 1 to 5 parts of a leveling agent, 1 to 5 parts of an organic silicon surfactant, 5 to 10 parts ofan antifoaming agent, 20 to 30 parts of a metallic tin drier, 200 to 300 parts of polyglycerol, 1 to 5 parts of a diluent, 50 to 80 parts of a coloring pigment, 20 to 30 parts of an ultraviolet lightabsorber and 5 to 10 parts of a light stabilizer. The acrylic resin, the leveling agent, the organosilicon surfactant, the antifoaming agent, the metallic tin drier, the polyglycerol, the diluent, the coloring pigment, the ultraviolet light absorber and the light stabilizer are adopted as formula components, all the components are mixed and heated to obtain the high-solid polyurethane finish paint. The finish paint has excellent mechanical properties and high solid content, generates less harmful substance volatilization in the processing process, and achieves safety and environmental protection.

Description

technical field [0001] The invention belongs to the technical field of polyurethane topcoat, in particular to a high-solid polyurethane topcoat and a preparation method thereof. Background technique [0002] At present, most of the coatings for steel substrates such as construction machinery, rail locomotives, buses, special vehicles, wind power towers, petrochemical storage tanks, and large-scale power equipment in China are solvent-based epoxy primers and solvent-based acrylic polyurethanes. Topcoat supporting coating system. Although these coatings can provide reliable corrosion protection to steel equipment. [0003] At present, the paint products on the market contain a large amount of solvents, which will volatilize a large amount of harmful substances during construction, which will cause serious damage to the environment and human health. Contents of the invention [0004] The invention provides a high-solid polyurethane topcoat and a preparation method thereof, ...

Claims

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Application Information

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IPC IPC(8): C09D171/08C09D133/04C09D7/48C09D7/63
CPCC09D171/00C09D7/48C09D7/63C08L33/04C08K5/3475
Inventor 郭建军
Owner 无锡福斯特涂料有限公司
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