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A special floor water-based polyurethane matt varnish product and its preparation method and application

A product and varnish technology, applied in the field of special floor waterborne polyurethane matt varnish products

Active Publication Date: 2019-08-06
NIPPON PAINT CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Considering that there is currently no two-component waterborne polyurethane matt varnish product that meets the requirements of the national standard, in order to better meet the development needs of decorative coatings, the surface of the coated substrate can reflect a better overall finishing effect and finishing performance. , there is an urgent need to develop a new type of two-component water-based polyurethane matt varnish product with good surface finishing effect, excellent chemical resistance, and other comprehensive performance balance

Method used

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  • A special floor water-based polyurethane matt varnish product and its preparation method and application
  • A special floor water-based polyurethane matt varnish product and its preparation method and application
  • A special floor water-based polyurethane matt varnish product and its preparation method and application

Examples

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preparation example Construction

[0124] The present invention also provides a kind of preparation method of described varnish product, described method comprises the steps:

[0125] 1) provide first packaging, component A is packed in described first packaging, obtain the first container described in claim 1; Wherein, component A is as follows preparation:

[0126] a-1) Under stirring conditions, add the first polyacrylate dispersion, film-forming aid, thickener, first silicone dispersant, silicone defoamer and water to the second polyacrylate dispersion in parts by weight In the dipolymer acrylate dispersion, the first mixed solution is obtained;

[0127] a-2) Add the second silicone dispersant and non-organic silicon defoamer into the first mixed solution prepared in step a-1) in parts by weight under stirring conditions to obtain component A ;

[0128] In another preferred example, after step a-2), a step is further included: adding water to the product obtained in step a-2) to prepare component A.

[0...

Embodiment 1

[0190] Example 1 Varnish Product 1

[0191] Component A: the Bayhydrol A 2546 of 16.64 parts by weight, the coalescent (dodecyl alcohol ester) of 0.81 parts by weight, the thickener (BYK-420) of 0.32 parts by weight, the thickener of 0.44 parts by weight ( Borchi Gel 0435), 0.55 parts by weight of dispersant (BYK-346), 0.22 parts by weight of antifoaming agent (BYK-094) and 2.92 parts by weight of deionized water were successively dropped into 42.72 parts by weight of Bayhydrol at a dispersion rate of 1500rpm A 2695, stirred for 15 minutes. Then 0.44 parts by weight of dispersant (BYK-333) and 0.22 parts by weight of antifoaming agent (BYK-1711) were sequentially put into it, and dispersed at a stirring rate of 1500 rpm for 15 minutes. After uniform dispersion, 34.72 parts by weight of deionized water was added, and then dispersed at a dispersion rate of 800 rpm for 10 minutes to prepare component A.

[0192] Component B: 22 parts by weight of Bayhydur XP 2547.

[0193] Mat...

Embodiment 2

[0199] Example 2 Varnish Product 2

[0200] Component A: the Bayhydrol A 2546 of 16.64 parts by weight, the coalescent (dodecyl alcohol ester) of 0.90 parts by weight, the thickener (BYK-420) of 0.32 parts by weight, the thickener of 0.44 parts by weight ( Borchi Gel 0435), 0.45 parts by weight of dispersant (BYK-346), 0.22 parts by weight of antifoaming agent (BYK-094) and 2.92 parts by weight of deionized water were successively added to 42.72 parts by weight of Bayhydrol at a dispersion rate of 1500rpm A 2695, stirred for 15 minutes. Then, 0.34 parts by weight of dispersant (BYK-333) and 0.22 parts by weight of defoamer (BYK-1711) were sequentially put into it, and dispersed at a stirring rate of 1500 rpm for 15 minutes. After uniform dispersion, 34.72 parts by weight of deionized water was added, and then dispersed at a dispersion rate of 800 rpm for 10 minutes to prepare component A.

[0201] Component B: 21.978 parts by weight of Bayhydur XP 2547.

[0202] Matt varnis...

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Abstract

The invention relates to a special flooring waterborne polyurethane sub-gloss varnish product and a preparation method and application thereof. Particularly, the varnish product comprises a first container and a second container; the first container comprises a component A which is prepared from, by weight, 40-70 parts of polyacrylate dispersoid, 0.01-5 parts of siloxane dispersing agent, 0.01-5 parts of organosilicone defoaming agent and 0.01-5 parts of non-organosilicone defoaming agent; the second container comprises a component B which is prepared from 10-35 parts by weight of isocyanate curing agent. The invention further discloses the preparation method and application of the varnish product. The varnish product is excellent in surface finishing effect and chemical resistance, other comprehensive properties are balanced, and the varnish product can well meet various indexes of requirements of the national standard.

Description

technical field [0001] The invention relates to the field of paints, in particular to a special floor water-based polyurethane matt varnish product and its preparation method and application. Background technique [0002] The two-component polyurethane paint is a reactive coating, which has high fullness of the paint film, good adhesion to the substrate, can be dried at room temperature, has various construction methods, strong resistance to solvents and chemicals, and good dry heat resistance. Toning to improve the advantages of decoration, so it occupies a large market share in the field of coatings. However, with people's new requirements for decorative materials, the public has put forward higher requirements for the indicators of the two-component polyurethane paint used in surface finishing, such as the surface finishing effect and chemical resistance of the paint film of varnish products. [0003] Considering that there is currently no two-component waterborne polyur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C09D7/63
Inventor 龚之奂沈清平黄挺
Owner NIPPON PAINT CHINA
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