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Super waterproof water-borne wood paint and preparation method thereof

A water-based wood paint and substrate technology, used in polyurea/polyurethane coatings, coatings, etc., can solve the problems of wood paint film cracking, peeling, poor water resistance, etc., to ensure adhesion, excellent water resistance, The effect of excellent water resistance

Active Publication Date: 2013-07-03
东莞大宝化工制品有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditionally, paints that contain a large amount of organic solvents such as benzene, toluene, and xylene are used as paints for wooden speakers and musical instruments. The use of such paints has great disadvantages in environmental protection, that is, it has great pollution to the environment. Harmful to the human body, so this type of oil-based paint is gradually being restricted in use
[0003] From the consideration of environmental protection, water-based wood coatings without harmful solvents have been developed and applied in large quantities. However, the water-resistant performance of water-based wood coatings on the market is average, especially in the full-fill process, and poor water resistance will lead to poor water-based wood coatings after coating. Due to environmental and climate factors, the film has problems such as cracking and peeling, which affects the appearance and performance of wooden utensils, and cannot achieve the effects of environmental protection, decoration and protection of wooden utensils

Method used

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  • Super waterproof water-borne wood paint and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0020] A super water-resistant water-based wood paint, comprising 10% of aliphatic polyurethane dispersion, 1.2% of defoamer, 3.5% of substrate wetting agent, 7% of dispersant, 0.6% of co-solvent, and 77% of pigment extender by mass percentage and thickener 0.7%.

[0021] The preparation process steps are as follows:

[0022] (1) First add the aliphatic polyurethane dispersion, defoamer, substrate wetting agent, dispersant, co-solvent and water into the mixer in sequence, and stir at 1000 rpm for 10 minutes;

[0023] (2) To the mixed solution prepared in step (1), add talcum powder, heavy calcium powder and silicon dioxide powder in the prescribed amount, then stir at 1000 rpm for 20 minutes until the talc Powder, heavy calcium powder and silicon dioxide powder are fully mixed with the solution;

[0024] (3) Add the thickener to the mixture obtained in step (2), and stir at 1000 rpm for 10 minutes to obtain the super water-resistant water-based wood paint.

Embodiment 2

[0026] A super-water-resistant water-based wood paint, comprising 20% ​​of aliphatic polyurethane dispersion, 1.0% of defoamer, 2.5% of substrate wetting agent, 6.5% of dispersant, 0.5% of co-solvent, 0.5% of water, Extender pigment 68% and thickener 1%.

[0027] Preparation:

[0028] (1) First add the aliphatic polyurethane dispersion, defoamer, substrate wetting agent, dispersant, co-solvent and water into the mixer in sequence, and stir at 800 rpm for 12 minutes;

[0029] (2) To the mixed solution prepared in step (1), add talcum powder, heavy calcium powder and silicon dioxide powder in the prescribed amount, then stir at 1000 rpm for 20 minutes until the talc Powder, heavy calcium powder and silicon dioxide powder are fully mixed with the solution;

[0030] (3) Add the thickener to the mixture obtained in step (2), and stir at 1200 rpm for 8 minutes to obtain the super water-resistant water-based wood paint.

Embodiment 3

[0032] A super water-resistant water-based wood paint, comprising by weight 25% of aliphatic polyurethane dispersion, 0.8% of defoamer, 2.5% of substrate wetting agent, 6% of dispersant, 0.3% of co-solvent, 0.5% of water, Extender pigment 65% and thickener 0.5%.

[0033] Preparation:

[0034] (1) First add the aliphatic polyurethane dispersion, defoamer, substrate wetting agent, dispersant, co-solvent and water into the mixer in sequence, and stir at 1200 rpm for 10 minutes;

[0035] (2) To the mixed solution prepared in step (1), add talcum powder, heavy calcium powder and silicon dioxide powder in the prescribed amount, then stir at 1500 rpm for 15 minutes until the talc Powder, heavy calcium powder and silicon dioxide powder are fully mixed with the solution;

[0036] (3) Add the thickener to the mixture obtained in step (2), and stir at 1000 rpm for 10 minutes to obtain the super water-resistant water-based wood paint.

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Abstract

The invention relates to the technical field of water paint, and particularly relates to super waterproof water-borne wood paint and a preparation method thereof. The super waterproof water-borne wood paint comprises the following components by weight: 10 to 40 percent of fatty group polyurethane dispersoid,0.1 to 0.6 percent of coalescing agent, 40 to 80 percent of extender pigment, 1.5 to 3.5 percent of substrate wetting agent, 0.5 to 1.2 percent of antifoaming agent, 4 to 7 percent of dispersing agent, 0 to 1 percent of water and 0 to 1 percent of thickening agent. Through the adoption of the method that the fatty group polyurethane dispersoid is matched with related hydrophobic extender pigment, not only the good waterproof property of the products is ensured, but also the coating of the products is convenient in construction; and particularly the paint film adherence is good after coating, so as to achieve the real water-borne modification of the paint film, and to play functions of environmental protection, decoration and protection.

Description

technical field [0001] The invention relates to the technical field of water-based wood coatings, in particular to a super water-resistant water-based wood coating and a preparation method thereof. Background technique [0002] Traditionally, paints that contain a large amount of organic solvents such as benzene, toluene, and xylene are used as paints for wooden speakers and musical instruments. The use of such paints has great disadvantages in environmental protection, that is, it has great pollution to the environment. Harmful to the human body, so this type of oil-based paint is gradually being restricted in use. [0003] From the consideration of environmental protection, water-based wood coatings without harmful solvents have been developed and applied in large quantities. However, the water-resistant performance of water-based wood coatings on the market is average, especially in the full-fill process, and poor water resistance will lead to poor water-based wood coatin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D7/12
Inventor 陈贺生朱清溪
Owner 东莞大宝化工制品有限公司
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