Waterborne polyurethane matt topcoating and preparation method thereof

A water-based polyurethane, matte surface technology, applied in the field of coatings, can solve the problems of a large drop in the performance of the paint film, and achieve the effects of improving hardness, fast drying and reducing costs.

Inactive Publication Date: 2019-01-18
HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem in the prior art that the performance of the paint film is greatly reduced after the water-based polyurethane topcoat is matted, the present invention provides a water-based polyurethane matte topcoat and a preparation method thereof

Method used

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  • Waterborne polyurethane matt topcoating and preparation method thereof
  • Waterborne polyurethane matt topcoating and preparation method thereof
  • Waterborne polyurethane matt topcoating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The embodiment of the present invention provides a kind of waterborne polyurethane matte finish, and described waterborne polyurethane matte finish comprises the following components by weight:

[0043]

[0044] The above-mentioned water-based hydroxyl acrylic emulsion was provided by Shanghai Wanhua Group Co., Ltd. 2003 Hydroxy acrylic dispersion; the curing agent is N3390 from Bayer, Germany; the defoamer is a mixture of 941PL pioneered in France and BYK-028 from BYK, Germany, where the ratio of 941PL and BYK-028 is 1:2; the dispersant is BYK-190 from BYK, Germany; the pigment and filler are 0.1 parts of MA-100 carbon black from Mitsubishi, 10 parts of Dupont R-706 titanium dioxide and 21.9 parts of ultrafine barium sulfate; the substrate wetting agent is Tego-100 The thickener is RW-8M of Rohm and Haas; the anti-sedimentation agent is BYK-AQUATIX-8421 of BYK; the matting powder is American Yabao Pergopak M6.

[0045] The preparation steps of above-mentioned wate...

Embodiment 2

[0052] The embodiment of the present invention provides a kind of waterborne polyurethane matte finish, and described waterborne polyurethane matte finish comprises the following components by weight:

[0053]

[0054] The above-mentioned water-based hydroxyl acrylic emulsion was provided by Shanghai Wanhua Group Co., Ltd. 2003 Hydroxy acrylic dispersion; the curing agent is N3390 from Bayer, Germany; the defoamer is a mixture of 941PL pioneered in France and BYK-028 from BYK, Germany, wherein the ratio of 941PL and BYK-028 is 1:1; the dispersant is BYK-194 from BYK, Germany; the pigment and filler are 0.2 parts of MA-100 carbon black from Mitsubishi, 12 parts of DuPont R-706 titanium dioxide and 22.8 parts of ultrafine barium sulfate; the substrate wetting agent is Tego-510 The thickener is RW-8M of Rohm and Haas; the anti-sedimentation agent is BYK-AQUATIX-8421 of BYK; the matting powder is American Yabao Pergopak M6.

[0055] The preparation steps of above-mentioned wa...

Embodiment 3

[0062] The embodiment of the present invention provides a kind of waterborne polyurethane matte finish, and described waterborne polyurethane matte finish comprises the following components by weight:

[0063]

[0064]

[0065] The above-mentioned water-based hydroxyl acrylic emulsion was provided by Shanghai Wanhua Group Co., Ltd. 2003 hydroxyacrylic acid dispersion; curing agent is N3390 from Bayer, Germany; defoamer is a mixture of 941PL pioneered by France and BYK-028 from BYK, Germany, wherein the ratio of 941PL and BYK-028 is 2:1; dispersant is A mixture of BYK-194 and BYK190 from BYK, Germany, and the mass ratio of BYK-194 and BYK190 is 1:2; the pigment and filler are 0.5 parts of MA-100 carbon black from Mitsubishi, 14 parts of DuPont R-706 titanium dioxide and 10.5 parts part of ultrafine barium sulfate; substrate wetting agent is TEGO-4100 of Tego; thickener is RW-8M of Rohm and Haas; anti-sedimentation agent is BYK-AQUATIX-8421 of BYK; For Albemarle Pergopak...

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Abstract

The invention discloses a waterborne polyurethane matt top coating and a preparation method of the waterborne polyurethane matt top coating, the waterborne polyurethane matt top coating comprises thefollowing material components by weight: 35-45 parts of a waterborne hydroxy acrylic resin emulsion, 5-15 parts of a curing agent, 5-10 parts of an environmental protection cosolvent, 0.1-0.5 part ofa neutralizer, 0.1-0.5 part of a defoamer, 1-5 parts of a dispersing agent, 25-35 parts of a pigment and a filler, 0.5-1 part of a base material wetting agent, 1-5 parts of a thickener, 0.5-1 part ofan anti-settling agent, 0.5-2.5 parts of an organic matting agent, and 10-20 parts of deionized water. The provided waterborne polyurethane matt top coating reaches the performance requirement of a high-gloss paint film of the same system, is excellent in water tolerance, acid and alkaline resistance, ageing resistance and wear-resisting property, is low in VOC (Volatile Organic Compounds) content, is safe and environmentally friendly, has a higher practical value, is suitable for the metal surfaces requiring low gloss, and has a broad application prospect and a development potential.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a water-based polyurethane matte finish paint and a preparation method thereof. Background technique [0002] Traditional solvent-based two-component polyurethane coatings have the advantages of low film-forming temperature, strong adhesion, good abrasion resistance, high hardness, good chemical resistance and weather resistance, and are widely used as industrial protection, wood furniture and automotive coatings. However, with the continuous implementation and improvement of environmental protection policies and the continuous enhancement and improvement of consumers' environmental protection awareness, the use of solvent-based coatings has been restricted unprecedentedly. Traditional oil-based coatings are gradually being replaced by environmentally friendly coatings. The representative environmental protection paint is an important part of the vigorous development of modern g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C09D5/08C09D7/61C09D7/63C09D7/65C08G18/67
CPCC09D7/63C09D7/65C09D175/14C08G18/672C09D5/08C09D5/18C09D7/61C08K2003/2241C08K2003/3045C08L2201/08C08L2205/035C08L83/12C08L23/0853C08L61/24C08K13/02C08K5/17C08K3/04C08K3/30C08K3/22
Inventor 马春福周泽钱胡中源董立志
Owner HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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