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Waterborne double-component full-light colored finishing paint and preparation method thereof

A two-component, colored surface technology, applied in the field of coatings, can solve problems such as poor pollution resistance and chemical resistance, easy yellowing, and performance degradation, achieve excellent pollution resistance and chemical resistance, and solve uneven paint film. , the effect of excellent gloss and appearance

Inactive Publication Date: 2012-02-29
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

[0019] a. Manufacture of semi-finished white pulp: by weight, add 50 parts of polyacrylic acid polyol (DOW 3275), 2.0 parts of dispersant (NOPCO SN 990), 1.0 part of anti-settling agent (Huanqi LA530), 600r / min and stir until uniform and slowly add 40 parts of titanium dioxide, clean the equipment with 1.0 part of water and adjust the viscosity to 120KU, stir at 600 for 10 minutes until uniform, and use a grinder to grind to a fineness of less than 15 microns.

[0020] b. Manufacture of semi-finished color paste: by weight, add 50 parts of polyacrylic acid polyol (DOW 3275), 2.0 parts of dispersant (BYK194), 1.0 part of anti-sedimentation agent (Huanqi LA530) in the stirring container, and stir at 600r / min Slowly add 20 parts of toner until uniform, clean the equipment with 1.0 part of water and adjust the viscosity to 120KU, stir at 600r / min for 10 minutes until uniform, and grind to a fineness of less than 15 microns with a grinder.

[0021] c. By weight, add 50 parts of po...

Embodiment 2

[0024] a. Manufacture of semi-finished white pulp: by weight, add 60 parts of polyacrylic acid polyol (DOW 3275), 3.0 parts of dispersant (DOW X405), 2.0 parts of anti-settling agent (Huanqi LA530) in the stirring container, 800r / min Stir until uniform and slowly add 50 parts of titanium dioxide, clean the equipment with 5.0 parts of water and adjust the viscosity to 130KU, stir at 800r / min for 10 minutes until uniform, and grind to a fineness of less than 15 microns with a grinder.

[0025] b. Manufacture of semi-finished color paste: by weight, add 60 parts of polyacrylic acid polyol (DOW 3275), 3.0 parts of dispersant (DOW X405), 2.0 parts of anti-settling agent (Huanqi LA530) in the stirring container, 800r / min Stir until uniform and slowly add 30 parts of toner, clean the equipment with 5.0 parts of water and adjust the viscosity to 130KU, stir at 800r / min for 10 minutes until uniform, and grind to a fineness of less than 15 microns with a grinder.

[0026] c. By weight, ...

Embodiment 3

[0029] a. First make semi-finished white pulp: by weight, add 55 parts of polyacrylic acid polyol (DOW 3275), 2.5 parts of dispersant (BYK 194), 1.5 parts of anti-settling agent (Huanqi LA530) in the stirring container, 700r / Min stir until uniform and slowly add 45 parts of titanium dioxide, clean the equipment with 3 parts of water and adjust the viscosity to 125KU, stir at 700r / min for 10 minutes until uniform, grind with a grinder until the fineness is less than 15 microns.

[0030] b. Manufacture of semi-finished color paste: by weight, add 55 parts of polyacrylic acid polyol (DOW 3275), 2.5 parts of dispersant (BYK 194), 1.5 parts of anti-settling agent (Huanqi LA530) in the stirring container, 700r / min Stir until uniform and slowly add 25 parts of toner, clean the equipment with 3 parts of water and adjust the viscosity to 125KU, stir at 700r / min for 10 minutes until uniform, grind with a grinder until the fineness is less than 15 microns.

[0031] c. By weight, add 55 ...

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Abstract

The invention discloses waterborne double-component full-light colored finishing paint and a preparation method thereof and belongs to the field of paint. The waterborne double-component full-light colored finishing paint comprises a component A and an anionic modified HDI (Hexamethylene Diisocyanate) polyisocyanate, wherein the component A comprises the following materials in part by weight: 50-60 parts of polyacrylic polyols, 0.1-0.5 part of flatting agents, 20-25 parts of semi-finished product white slurry, 20-40 parts of semi-finished product colored slurry, 0.1-0.5 part of de-foaming agents, 0.1-2 parts of film-forming auxiliaries and 1-5 parts of water. The weight ratio of the component A to the anionic modified HDI polyisocyanate is 1:(0.2-0.3). The waterborne double-component full-light colored finishing paint has excellent glossiness and appearance, is excellent in stain resistance and chemical property, never becomes yellow, is rust-proof and high-temperature resistant, and can be simultaneously applied together with other paint, 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 all-bright color 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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IPC IPC(8): C09D175/04C09D7/12C09D5/29
Inventor 吕跃文
Owner CHENGDU BEIDA PAINT
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