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Aqueous polyurethane matting resin

A water-based polyurethane and matting resin technology, applied in polyurea/polyurethane coatings, coatings, etc., can solve problems such as uneven mixing, affecting decorative effects, and coating gloss differences, and achieve consistent surface tension, good environmental protection, and use long life effect

Active Publication Date: 2014-06-18
ANQING HAOYE WATER PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the change of people's aesthetic perception, products decorated with matte / matte surfaces are becoming more and more popular. The matting materials have also developed from high-filling materials that exist in nature to micronized wax, and then inorganic matting powder, inorganic matting Although the powder has matting properties, its disadvantages are also obvious: 1. Adding a large amount of these powder matting materials will increase the brittleness of the obtained coating, which is easy to break and fall off; 2. The precipitation of matting materials often leads to unevenness before application. Mixing, so that the gloss of the entire coating is different, affecting the decorative effect

Method used

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  • Aqueous polyurethane matting resin
  • Aqueous polyurethane matting resin

Examples

Experimental program
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Effect test

Embodiment 1

[0016] This example includes the following components in parts by weight: 14 parts of diisocyanate, 1 part of dimethylol propionic acid (DMPA), 43 parts of glycol, 0.06 parts of organic bismuth catalyst, 0.8 part of dimethylethanolamine, 2 -1 part of sodium [(2-aminoethyl)amino]ethanesulfonate, 0.8 parts of hydrazine hydrate, 8 parts of N-methylpyrrolidone solvent, and 104 parts of deionized water.

[0017] In this embodiment, hydrogenated phenylmethane diisocyanate is selected as the diisocyanate; 15 parts of polyoxypropylene diol and 28 parts of polycarbonate diol are selected as the diol.

Embodiment 2

[0019] This example includes the following components in parts by weight: 15 parts of diisocyanate, 1 part of dimethylolpropionic acid (DMPA), 50 parts of diol, 0.05 parts of organic bismuth catalyst, 0.8 part of dimethylolamine, 2 -1 part of sodium [(2-aminoethyl)amino]ethanesulfonate, 0.8 parts of hydrazine hydrate, 8 parts of N-methylpyrrolidone solvent, and 122 parts of deionized water.

[0020] In this embodiment, 8 parts of hydrogenated phenylmethane diisocyanate and 6 parts of isophorone diisocyanate are selected as diisocyanate; 20 parts of polycarbonate diol and 30 parts of polyε-caprolactone diol are selected as diol.

Embodiment 3

[0022] The present embodiment includes the following components in parts by weight: 15 parts of diisocyanate, 1 part of dimethylol propionic acid (DMPA), 54 parts of glycol, 0.05 parts of organic bismuth catalyst, and 1 part of dimethylolamine , 1 part of sodium 2-[(2-aminoethyl)amino]ethanesulfonate, 5 parts of hydrazine hydrate, 7 parts of N-methylpyrrolidone solvent, and 132 parts of deionized water.

[0023] In this embodiment, the diisocyanate is selected from isophorone diisocyanate; the diol is selected from polyε-caprolactone diol.

[0024] The products obtained in the above examples are tested according to the national standard (GB / T23999-2009), and reach the following indicators:

[0025]

[0026]

[0027] It can be seen through testing that the water-based polyurethane matting resin provided by the present invention has uniform coating, good matting effect, ideal weather resistance and corrosion resistance, and long service life. The product obtained in Examp...

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Abstract

The invention provides aqueous polyurethane matting resin. According to the aqueous polyurethane matting resin, any matting material does not need to be added, coating is uniform, the matting effect is good and the service life is long. The aqueous polyurethane matting resin contains following components in parts by weight: 10-18 parts of diisocyanate, 0.5-5 parts of dimethylolpropionic acid (DMPA), 35-60 parts of dihydric alcohol, 0.05-1 part of organic bismuth catalyst, 0.5-5 parts of dimethylethanolamine, 0.5-10 parts of 2-[(2-aminoethyl)amino]sodium sulfonate, 0.5-5 parts of hydrazine hydrate, 1-10 parts of N-methylpyrrolidone catalyst and 104-180 parts of de-ionized water. The invention further provides a preparation method of the aqueous polyurethane matting resin.

Description

technical field [0001] The invention relates to new materials, in particular to a water-based polyurethane matting resin. Background technique [0002] With the change of people's aesthetic perception, products decorated with matte / matte surfaces are becoming more and more popular. The matting materials have also developed from high-filling materials that exist in nature to micronized wax, and then inorganic matting powder, inorganic matting Although the powder has matting properties, its disadvantages are also obvious: 1. Adding a large amount of these powder matting materials will increase the brittleness of the obtained coating, which is easy to break and fall off; 2. The precipitation of matting materials often leads to unevenness before application. Mixing, so that the gloss of the entire coating is different, affecting the decorative effect. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a water-based pol...

Claims

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Application Information

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IPC IPC(8): C08G18/76C08G18/75C08G18/66C08G18/48C08G18/44C08G18/32C08G18/30C08G18/42C09D175/08C09D175/06C09D5/00
CPCC08G18/0823C08G18/0828C08G18/12C08G18/348C08G18/6625C08G18/6659C09D175/06C09D175/08C08G18/3231
Inventor 李敏李传宏陈桂斌李颖
Owner ANQING HAOYE WATER PAINT
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