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Preparation method of aqueous two-component super wear-resistant lusterless paint

A water-based two-component, super wear-resistant technology, applied in coatings, polyurea/polyurethane coatings, etc., can solve the problems of poor brittleness of matte paint coatings, decreased transparency of coatings, and affecting storage stability. VOC, high wear resistance and scratch resistance, good smooth handle effect

Inactive Publication Date: 2016-06-29
UNION FOSHAN CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The matting powder used in the above-mentioned patents is silicon dioxide, and the wear-resisting additives are various wax emulsions, glass powder and polyether modified siloxane polymers. The film of matte paint has poor brittleness, which can easily cause the performance of the coating to decline, such as precipitation affecting storage stability, poor polishing resistance of the coating, and decreased transparency of the coating film.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Various colors of water-based two-component polyurethane super wear-resistant matte wood paint, its preparation process includes the following steps:

[0024] a. Add 6 parts of SMA1000 solid in the dissolution kettle, heat to 60°C to dissolve, add 0.5 parts of ammonia water for alkali dissolution reaction under stirring, add 12 parts of ionized water to prepare an aqueous solution with a solid content of 30% and a pH value of 8.5, and set aside ;

[0025] b. Preparation of component A: Add 8.4 parts of deionized water into the dispersion tank, add 0.2 parts of bactericide, 0.2 parts of defoamer, 1.5 parts of dispersant, and 5 parts of titanium dioxide in sequence, and grind to a fineness of ≤ after high-speed dispersion 10 μm, add 4 parts of PMMA microsphere powder under stirring, after stirring evenly, add (40% solid content) 58 parts of water-based hydroxyacrylic resin and 20 parts of SMA solution in step a at a medium speed, add water-based color paste according to t...

Embodiment 2

[0028] Water-based two-component polyester super wear-resistant aluminum alloy matte black paint, its preparation process comprises the following steps:

[0029] a. Add 8 parts of SMA1000 solid in the dissolution kettle, heat to 60°C to dissolve, add 0.6 parts of ammonia water for alkali dissolution reaction under stirring, add 18.5 parts of ionic water to prepare an aqueous solution with a solid content of 30% and a pH value of 8.5, and set aside ;

[0030] b. Preparation of component A: Add 9.2 parts of deionized water into the dispersing tank, add 0.2 parts of bactericide, 0.2 parts of defoamer, 0.5 parts of dispersant, and 3 parts of titanium dioxide in sequence, and grind to fineness ≤ after high-speed dispersion 10 μm, add 5 parts of PMMA microsphere powder under stirring, add (48% solid content) 53 parts of water-based polyester resin and 20 parts of SMA solution in step a under medium speed, stir evenly, add 5 parts of water-based carbon black slurry, Add 0.2 parts of...

Embodiment 3

[0033] Water-based two-component acrylic modified polyester super wear-resistant matte magnesium alloy royal blue mobile phone paint, its preparation process includes the following steps:

[0034] a. Add 5.8 parts of SMA1440 solid in the dissolving tank, heat to 60°C to dissolve, add 0.5 parts of ammonia water for alkali dissolution reaction under stirring, add 15.0 parts of ionized water to prepare an aqueous solution with a solid content of 28% and a pH value of 8.2, and set aside ;

[0035] b. Preparation of component A: Add 7.0 parts of deionized water into the dispersion tank, add 0.2 parts of bactericide, 0.2 parts of defoamer, 1.2 parts of dispersant, and 6 parts of titanium dioxide in sequence, and grind to a fineness of ≤ after high-speed dispersion 10 μm, add 4 parts of PMMA microsphere powder under stirring, add (40% solid content) water-based hydroxyl acrylic resin 32 parts, (48% solid content) water-based polyester resin 25 parts and the SMA solution 18 in step a ...

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Abstract

The invention relates to a preparation method of aqueous two-component super wear-resistant lusterless paint. The lusterless paint comprises an ingredient A and an ingredient B and a mole ratio of OH to NCO in the ingredients A and B is 1: 1.0-1.5. The ingredient A comprises a hydroxyl-containing aqueous resin, SMA resin, PMMA microspheres, aqueous color paste, auxiliary agents and water. The ingredient B is an aqueous polyurethane curing agent. A film of the aqueous two-component super wear-resistant lusterless paint has excellent high temperature resistance, super wear resistance, water resistance, weatherability and chemical stability. The preparation method improves paint surface texture, fullness, flexibility, smoothness and delustring effects and does not influence paint film texture and a brilliant degree. The aqueous two-component super wear-resistant lusterless paint has low VOC, does not contain heavy metals, is environmentally friendly, can be widely used for surface coating and protection of a base material with high temperature resistance, wear and scratch resistance and lusterless effect requirements and can be used for aqueous floor paint, aqueous high-grade woodenware paint, aqueous plastic cement paint, aqueous mobile phone paint and aqueous industrial paint.

Description

technical field [0001] The invention relates to a preparation method of a water-based two-component matte color paint, in particular to a water-based two-component super wear-resistant matte color paint, which belongs to the technical field of water-based paints. Background technique [0002] With the improvement of people's living standards and high attention to health, the future home decoration and furniture coating market must be dominated by water-based paint. According to statistics, the output of wood coatings in my country was about 800,000 tons in 2008. In 2010, the total output of wood coatings in China was 1.06 million tons, of which polyurethane coatings accounted for the highest proportion, about 70%, of which water-based wood coatings only accounted for about 10%. However, compared with oil-based paint, water-based wood paint has the disadvantages of low hardness, fullness, gloss, temperature resistance, water resistance, wear resistance and scratch resistance ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D175/06C09D7/12C09D5/00
Inventor 许钧强康伦国姚东生阳京辉
Owner UNION FOSHAN CHEM
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