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Water-based matte white coating and preparation method thereof

A white, water-based technology, applied in the field of coatings, can solve problems such as high VOC content and short pot life

Inactive Publication Date: 2020-12-11
珠海展辰新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of this application is to provide a water-based matte white paint and its preparation method, which aims to solve the problems of high VOC content and short pot life of water-based paints in the prior art

Method used

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  • Water-based matte white coating and preparation method thereof
  • Water-based matte white coating and preparation method thereof
  • Water-based matte white coating and preparation method thereof

Examples

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preparation example Construction

[0047] The second aspect of the embodiment of the present application provides a kind of preparation method of water-based matte white paint, and the preparation method of the first component comprises the steps:

[0048] S01. The acrylic emulsion and the polyurethane-modified alkyd resin aqueous dispersion are subjected to the first mixing treatment to obtain the first mixture;

[0049] S02. The wetting agent, the defoamer and the first mixture are subjected to a second mixing treatment to obtain a second mixture;

[0050] S03. Carrying out the third mixing treatment of the film-forming aid and the deionized water to obtain the third mixture;

[0051] S04. The second mixture, the third mixture, the thickener, the matting agent, the titanium dioxide slurry, and the bactericidal preservative are subjected to a fourth mixing treatment to obtain the first component.

[0052] The preparation method of the first component in the water-based matte white paint provided by the second...

Embodiment 1

[0062] A water-based matte white paint

[0063] The water-based matte white paint comprises a first component and a second component, wherein the first component comprises the following components in parts by weight:

[0064]

[0065] The second component is selected from the hydrophilic aliphatic polyisocyanate curing agent Bayhydur ultra 307;

[0066] The mass ratio of the first component to the second component is 100:10.

[0067] Among them, the mass percentage of hydroxyl group in the acrylic emulsion is 1.6%, and the minimum film-forming temperature is 40°C;

[0068] Polyurethane modified alkyd resin aqueous dispersion is AKD 2734 provided by French ECOAT company, oil degree 36, hydroxyl mass percentage content 1%;

[0069] The wetting agent is BYK346;

[0070] The defoamer is a mixture of TEGO Foamex 810, BYK 024, and TEGO Airex 902W, and the ratio of the three is 3:2:3;

[0071] The film-forming aid is used in a 1:1 mixture of DPM and DPnB;

[0072] The thickene...

Embodiment 2

[0083] A water-based matte white paint

[0084] The water-based matte white paint comprises a first component and a second component, wherein the first component comprises the following components in parts by weight:

[0085]

[0086] The second component is selected from the hydrophilic aliphatic polyisocyanate curing agent Bayhydur ultra 307;

[0087] The mass ratio of the first component to the second component is 100:8.

[0088] Among them, the mass percentage of hydroxyl group in the acrylic emulsion is 1.6%, and the minimum film-forming temperature is 40°C;

[0089] Polyurethane modified alkyd resin aqueous dispersion is AKD 2734 provided by French ECOAT company, oil degree 36, hydroxyl mass percentage content 1%;

[0090] The wetting agent is BYK346;

[0091] The defoamer is a mixture of TEGO Foamex 810, BYK 024, and TEGO Airex 902W, and the ratio of the three is 3:2:3;

[0092] The film-forming aid is used in a 1:1 mixture of DPM and DPnB;

[0093] The thicken...

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Abstract

The invention provides a water-based matte white coating and a preparation method thereof.The water-based matte white coating comprises a first component and a second component. The first component comprises, by weight, 30-50 parts of acrylic emulsion, 10-30 parts of a polyurethane modified alkyd resin aqueous dispersion, 1-4 parts of a coalescing agent, 0.1-0.6 parts of a wetting agent, 0.5-1.2 parts of a defoaming agent, 0.3-1 part of thickening agent, 0.5-2 parts of a flatting agent, 20-30 parts of titanium dioxide slurry, 0.05-0.1 parts of an antibacterial preservative and 2-18 parts of deionized water. The second component is hydrophilic modified aliphatic polyisocyanate which does not contain volatile organic compounds. The water-based matte white paint has the advantages of extremely low VOC (Volatile Organic Compound) content, long service life and good comprehensive performance of a coating film.

Description

technical field [0001] The application belongs to the technical field of coatings, in particular to a water-based matte white coating and a preparation method thereof. Background technique [0002] Coating is a material that can be coated on the surface of an object by different construction techniques to form a solid film with strong adhesion, certain strength and continuity. The film formed in this way is commonly called a coating film, also known as a paint film or a coating. Water-based coatings refer to coatings that use water as a solvent or as a dispersion medium. According to the type of binder in the coating, water-based coatings are divided into two categories: natural water-based coatings of natural substances or minerals (such as potassium silicate) and petrochemical water-based coatings of artificial synthetic resins (such as acrylic resins). Water-based paints include water-soluble paints, water-diluted paints, and water-dispersible paints (latex paints). ...

Claims

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Application Information

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IPC IPC(8): C09D133/04C09D167/08C09D7/61C09D7/63C09D7/42C09D175/14C09D5/14
CPCC08K2003/2241C09D5/14C09D133/04C09D167/08C09D175/14C09D7/42C09D7/61C09D7/63C08L67/08C08K13/02C08K3/36C08K5/06C08K3/22C08L33/04
Inventor 曾一成陈寿生
Owner 珠海展辰新材料股份有限公司
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