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Water-based paint and preparation method thereof

A water-based paint and water-based technology, applied in the field of paint, can solve the problems of low fullness and poor transparency, and achieve the effect of high fullness, delicate surface and easy operation

Inactive Publication Date: 2020-04-28
珠海展辰新材料股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a water-based paint, which aims to solve the problems of poor transparency and low fullness of the existing water-based paint, so as to be suitable for high-end furniture

Method used

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  • Water-based paint and preparation method thereof
  • Water-based paint and preparation method thereof
  • Water-based paint and preparation method thereof

Examples

Experimental program
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preparation example Construction

[0056] A preparation method of water-based paint includes the following steps:

[0057] S01. Prepare materials according to the above-mentioned water-based paint;

[0058] S02, subjecting the aqueous hydroxy acrylic emulsion, the aqueous polyurethane dispersion, the dispersant, the defoamer, the bactericide, the pH adjuster and part of the thickening agent to the first mixing process, to obtain the first mixture;

[0059] S03. Add a leveling agent, alcohol ether, wetting agent, water, and the remaining thickener to the first mixture, and perform a second mixing process to obtain a main ingredient;

[0060] S04. Mix the main material and the water-dispersible hexamethylene diisocyanate homopolymer to obtain the water-based paint.

[0061] In the preparation method of the water-based paint provided by the embodiment of the present invention, each component in the main ingredient formulation is mixed, and then the main ingredient and the water-dispersible hexamethylene diisocyanate homopol...

Embodiment 1

[0070] This embodiment provides a two-component polyurethane water-based coating, including: a main agent and a water-dispersible hexamethylene diisocyanate homopolymer;

[0071] Wherein, based on the total weight of the main agent as 100 parts, the main agent includes the following components by weight:

[0072]

[0073] The proportion of each component is the main paint: curing agent: water = 100: 10: 10 (mass ratio)

Embodiment 2

[0075] This embodiment provides a two-component polyurethane water-based coating, including: a main agent and a water-dispersible hexamethylene diisocyanate homopolymer;

[0076] Wherein, based on the total weight of the main agent as 100 parts, the main agent includes the following components by weight:

[0077]

[0078] The proportion of each component is the main paint: curing agent: water = 100: 10: 10 (mass ratio)

[0079] 1. Take the two-component polyurethane water-based paint prepared in Example 1 and Example 2, according to the water-based paint performance standard GB / T23999-2009 "Water-based wood coating for interior decoration" and GB24410-2009 "Water-based wood coating for interior decoration" Coating Hazardous Substances Limitation” was tested, and the test results are shown in Table 1, showing that the coatings provided in the embodiments of the present invention meet the national standards.

[0080] Table 1

[0081]

[0082]

[0083] 2. Take the two-component polyuretha...

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Abstract

The invention belongs to the technical field of coatings, and particularly relates to a water-based paint and a preparation method thereof. The water-based paint provided by the invention is preparedfrom a main agent and a water dispersible hexamethylene diisocyanate homopolymer. The main agent is prepared from the following components in parts by weight: 50-60 parts of water-based hydroxyl acrylic emulsion; 20-30 parts of a waterborne polyurethane dispersion; 0-0.5 part of a dispersing agent; 0.5-1 parts of a defoaming agent; 0.1-0.5 parts of a leveling agent; 0.1-0.5 parts of a bactericide;0.1-0.5 parts of a pH regulator; 2-5 parts of alcohol ether; 0.4-0.7 parts of a wetting agent; 0.5-1 parts of a thickening agent; 0-20 parts of water, wherein the dispersing agent is selected from ahigh-molecular-weight block copolymer containing pigment groups; the defoaming agent is selected from a foam breaking polymer and / or polysiloxane; the leveling agent is selected from polyether modified polydimethylsiloxane; the wetting agent is selected from an organic silicon surfactant; the thickening agent is selected from a polyurethane thickening agent; and the alcohol ether is a mixture of dipropylene glycol monomethyl ether and dipropylene glycol propyl ether. The water-based finish paint solves the problems of poor transparency and low fullness of the existing water-based paint, and issuitable for high-grade furniture.

Description

Technical field [0001] The invention belongs to the technical field of coatings, and particularly relates to an aqueous coating and a preparation method thereof. Background technique [0002] With the advent of the low-carbon economy era, environmental protection and energy are the two wars we are facing in the 21st century. In response to this challenge, the coating industry is gradually shifting from traditional varieties of high pollution, high energy consumption, and extremely dependent on petroleum industrial products to water-based paint and radiation. Environmentally friendly and resource-saving products such as cured coatings, powder coatings and high solids coatings. Water-based wood paint is one of the main varieties of industrial coatings. Compared with oil-based topcoats, water-based wood paints still have problems such as poor transparency and low fullness. Therefore, there is a shortage of wood lacquers suitable for high-end furniture on the market. A water-based h...

Claims

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Application Information

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IPC IPC(8): C09D175/04
CPCC08L2201/10C08L2205/025C09D175/04C08L75/04
Inventor 罗文兴陈寿生郭玉朱强刘志刚
Owner 珠海展辰新材料股份有限公司
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