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Aqueous bi-component full-bright black surface paint and preparation method thereof

A two-component, black topcoat technology, applied in the field of coatings, can solve the problems of no adhesion, poor stain resistance and chemical resistance, performance degradation, etc., to achieve easy mixing, excellent stain resistance and chemical resistance, excellent The effect of gloss and appearance

Inactive Publication Date: 2013-06-12
CHENGDU BEIDA PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the paint in the prior art is likely to cause paint problems such as uneven paint film, performance decline after a period of time, no adhesion, etc., and poor pollution resistance and chemical resistance, easy yellowing, and poor antirust ability , the problem of not being able to withstand high temperature

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] a. Manufacture of semi-finished black pulp: by weight, add 50 parts of polyacrylic acid polyol, 2.0 parts of dispersant (DOW X405) and 1.0 part of anti-settling agent (Huanqi LA530) to the container, stir until uniform and slowly add carbon black 10 parts, 1.0 parts of water to clean the equipment, adjust the viscosity to 120KU, stir at 600r / min until uniform, grind to a fineness of less than 15 microns, and obtain a semi-finished black slurry.

[0019] b. By weight, add 50 parts of polyacrylic acid polyol, 0.1 part of leveling agent (BYK 346), 20 parts of semi-finished black slurry, 0.1 part of defoamer (BYK 028), and film-forming aid (BYK 028) to the container Mannol ester-12) 0.1 part, stir at 600r / min, clean the equipment with 1.0 part of water, adjust the viscosity to 120KU, filter to obtain component A.

[0020] c. According to the ratio of component A: anion-modified HDI polyisocyanate = 1:0.2, add water and mix evenly. The ratio of the amount of water added to c...

Embodiment 2

[0022] a. Manufacture of semi-finished black pulp: by weight, add 50 parts of polyacrylic acid polyol, 2.0 parts of dispersant (BYK 194), 1.0 part of anti-settling agent (Huanqi LA530) to the container, and stir at 800r / min until uniform and slow Add 10 parts of carbon black, clean the equipment with 1.0 part of water, adjust the viscosity to 130KU, stir until uniform, and grind to a fineness of less than 15 microns to obtain a semi-finished black slurry.

[0023] b. By weight, add 50 parts of polyacrylic acid polyol, 0.1 part of leveling agent (Tego 410), 20 parts of semi-finished black pulp (Huanqi LA530), 0.1 part of defoamer (Tego 902W), and film-forming Add 0.1 part of additive (Eastman alcohol ester-12), stir at 800r / min, wash the equipment with 1.0 part of water, adjust the viscosity to 130KU, and filter to obtain component A.

[0024] c. According to the ratio of component A: anion-modified HDI polyisocyanate = 1:0.2, add water and mix evenly. The ratio of the amount o...

Embodiment 3

[0026] a. Manufacture of semi-finished black pulp: by weight, add 55 parts of polyacrylic acid polyol, 2.5 parts of dispersant (BYK 194), 1.5 parts of anti-settling agent (Huanqi LA530) to the container, stir at 700r / min until uniform and slowly Add 15 parts of carbon black, clean the equipment with 3 parts of water, adjust the viscosity to 125KU, stir until uniform, and grind to a fineness of less than 15 microns to obtain a semi-finished black pulp.

[0027] b. By weight, add 55 parts of polyacrylic acid polyol, 0.3 parts of leveling agent (Tego 410), 22 parts of semi-finished black pulp, 0.3 parts of defoamer (BYK 028), and film-forming aid (Ez Mannol ester-12) 1 part, stir at 700r / min, wash the equipment with 3 parts of water, adjust the viscosity to 125KU, and filter to obtain component A.

[0028] c. According to the ratio of component A: anion-modified HDI polyisocyanate = 1:0.25, add water and mix evenly. The ratio of the amount of water added to component A is 0.4:1 t...

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PUM

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Abstract

The invention discloses an aqueous bi-component full-bright black surface paint and a preparation method thereof. The invention belongs to the field of paints. The surface paint is composed of a component A and anionic modified HDI polyisocyanate. The component A comprises components of, by weight: 50 to 60 parts of polyacrylic acid polyhydric alcohol, 0.1 to 0.5 parts of a leveling agent, 20 to 25 parts of a half-finished product black slurry, 0.1 to 0.5 parts of an anti-foaming agent, 0.1 to 2.0 parts of a film-forming agent, and 1.0 to 5.0 parts of water. The half-finished product black slurry comprises components of, by weight: 50 to 60 parts of polyacrylic acid polyhydric alcohol, 2.0 to 3.0 parts of a dispersant, 1.0 to 2.0 parts of an anti-sedimentation agent, 10 to 20 parts of carbon black, and 1.0 to 5.0 parts of water. The ratio of the component A to anionic modified HDI polyisocyanate is 1:0.2-0.3. The surface paint provided by the invention has excellent luster, appearance, fouling resistance, chemical resistance, yellowing resistance, rust resistance, and high-temperature resistance. The surface paint can be applied in construction in combination with other paints such as emulsion paint.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to a water-based two-component full-gloss black topcoat and a preparation method thereof. Background technique [0002] There are many kinds of coatings on the market, mainly divided into organic coatings and inorganic coatings, and organic coatings are divided into organic solvent-based coatings and organic water-based coatings according to the different solvents used. Due to the high VOC, organic solvent-based coatings cannot meet people's increasing requirements for environmental protection. [0003] Organic water-based paints, that is, water-based paints, are increasingly becoming a research hotspot. Water-based wood paints with acrylic acid as the main component are characterized by good adhesion and will not deepen the color of wood, but poor wear resistance and chemical resistance. The hardness of the film is relatively soft, the pencil test is HB, the fullness is poor, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C09D7/12
Inventor 吕跃文
Owner CHENGDU BEIDA PAINT