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Waterborne polyurethane enamel paint and preparation method and application method thereof

A technology of polyurethane and polyurethane emulsion, applied in polyurea/polyurethane coatings, magnetic coatings, coatings, etc., can solve the problems of large color difference in batches of natural colored sand, excessive use of natural colored sand, etc.

Active Publication Date: 2016-04-20
广东施彩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

[0004] The purpose of the present invention is to provide a kind of dyeable polyurethane water-based enamel and its preparation method for the problem of large batch color difference of natural colored sand in the prior art, and further aim at the problem of excessive use of natural colored sand Application method of polyurethane water-based enamel (white sand is more abundant than other colored sand)

Method used

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  • Waterborne polyurethane enamel paint and preparation method and application method thereof

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Experimental program
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Effect test

Embodiment 1

[0081] The preparation method of the artificial colored sand of the present embodiment, comprises the steps:

[0082] (1) Mixing: Add 50 parts of water and 0.1 part of hydroxypropyl methylcellulose into the mixer and stir for 5 minutes at a speed of 500 r / min. After the hydroxypropyl methylcellulose is fully dissolved, add 0.5 parts of wetting agent, 0.2 parts by weight of antifoaming agent, 2 parts of dispersant and stir evenly;

[0083] (2) Dispersion: add 20 parts of titanium dioxide to the mixer at a speed of 600r / min, and stir at 1600r / min for 20 minutes;

[0084] (3) Paint mixing: Add 210 parts of polyurethane emulsion, 5 parts of film-forming aid, and 0.35 parts by weight of defoamer to the mixer at a speed of 600r / min, stir for 10 minutes, and then add 2-6 parts of coupling agent , stirring and mixing, the obtained viscosity is the polyurethane water-based enamels of 70KU;

[0085] (4) Toning: add water-based color paste to the polyurethane water-based enamel describ...

Embodiment 2

[0089] The preparation method of the artificial colored sand of the present embodiment, comprises the steps:

[0090] (1) Mixing: Add 64 parts of water, 0.3 parts of hydroxypropyl methylcellulose, and 1.5 parts of rheological agent (polyurethane) into the mixer and stir at a speed of 500r / min for 5 minutes, then add 0.4 parts of AMP-95, and wait until the hydroxyl After the propyl methylcellulose is fully dissolved, add 0.3 parts of nonionic wetting agent, 0.5 parts by weight of defoamer, and 2.0 parts of ammonium salt dispersant and stir evenly;

[0091] (2) Dispersion: Add 35 parts of titanium dioxide and 160 parts of heavy calcium carbonate to the mixer at a speed of 600r / min and stir for 20 minutes at a mixer speed of 1500r / min;

[0092] (3) Paint adjustment: add 218 parts of polyurethane emulsion, 7.7 parts of alcohol ester twelve, 0.9 parts of defoamer at the speed of 600r / min in the mixer, stir for 10 minutes, and then add 1.0 parts of polyurethane leveling agent (alkyl...

Embodiment 3

[0096] The preparation method of the artificial colored sand of the present embodiment, comprises the steps:

[0097] (1) Mixing: Add 150 parts of water, 0.5 parts of hydroxypropyl methylcellulose, and 3.0 parts of rheological agent (polyacrylate) into the mixer and stir at a speed of 600r / min for 6 minutes, then add 0.6 parts of AMP-95, After the hydroxypropyl methylcellulose is fully dissolved, add 0.5 parts of a wetting agent, 1.0 parts by weight of an antifoaming agent, and 6 parts of a dispersant and stir evenly;

[0098] (2) Dispersion: Add 50 parts of titanium dioxide and 180 parts of heavy calcium carbonate to the mixer at a speed of 700r / min, and stir at 1800r / min for 25 minutes;

[0099] (3) Paint mixing: Add 230 parts of polyurethane emulsion, 10 parts of film-forming aids, 2.0 parts by weight of defoamer to the mixer at a speed of 700r / min, stir for 15 minutes, and then add 2.0 parts of leveling agent (alkane base modified organosiloxane), 6 parts of coupling agen...

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Abstract

The invention relates to the technical field of real stone paint, in particular to waterborne polyurethane enamel paint and a preparation method and application method thereof. Raw materials of the waterborne polyurethane enamel paint comprise polyurethane emulsion, hydroxypropyl methyl cellulose, AMP-95, a dispersing agent, a wetting agent, a defoaming agent, a packing material, a coalescing agent, a levelling agent, a rheological agent, a thickening agent, a coupling agent and water. The excellent abrasion resistance and adhesiveness are achieved, and therefore the fading phenomenon is prevented from occurring; artificial colored sand prepared from the waterborne polyurethane enamel paint has the good weather resistance, water resistance, washing resistance and the like and is little in batch color difference, and ordinary white sand can be adopted, so that exhaustive exploitation on natural resources is avoided.

Description

technical field [0001] The invention relates to the technical field of real stone varnish, in particular to a polyurethane water-based enamel and its preparation method and application method. Background technique [0002] Real stone paint is mainly made of high molecular polymer, natural colored stone sand and related additives. After drying and curing, it is as hard as stone and looks like natural real stone. Real stone paint is widely used, and has high hardness, good weather resistance, fire resistance, acid and alkali resistance, pollution resistance, non-toxic, tasteless and other characteristics. In the prior art, natural stone paint is mainly made of natural colored sand, and the large-scale mining of natural colored sand has a great impact on environmental damage. At the same time, the color difference between batches is large, different mineral components are different, and its weather resistance is not ideal. [0003] The patent application document with the appl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/23C09D175/04C09D7/12C09D7/06C04B14/06C04B20/10C09D7/47
CPCC04B14/06C04B20/107C08L2205/025C08L2205/035C09D7/43C09D7/47C09D7/61C09D7/63C09D175/04C08L1/284C08L75/04C08L33/02C08K13/02C08K2003/2241C08K2003/265C04B20/1066C04B20/1048C04B20/1037C04B20/1018
Inventor 叶邦君钟小秋
Owner 广东施彩新材料科技有限公司
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