Water-based environment-friendly matte aluminum powder metallic paint and preparing method thereof

A metallic paint and water-based technology, applied in coatings, electrophoretic coatings, etc., can solve the problems of water-based paints such as easy sagging, shrinkage cavities, pinholes, etc., and achieve the effect of neatly arranged silver powder, good leveling, and improved silver powder arrangement

Inactive Publication Date: 2015-11-25
ZHAOQING CITY CAIXIN DECORATION MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the high surface tension of water-based environmental protection silver powder matt metallic paint (the surface tension of water is 72mN / m, and the surface tension of most organic solvents is between 20-30mN / m), the surface tension of general water-based environmental protection silver powder matt metallic paint is also low. Larger, the following defects and paint film disadvantages are likely to occur during painting: poor flatness, easy to produce shrinkage cavities and pinholes; general water-based paints are easy to hang during construction, aluminum powder and matting powder are easy to settle, and the coating film is baked. Uneven arrangement of silver powder after baking and drying; general water-based paint film gloss is relatively low. Under the current technical conditions, the film gloss of ordinary water-based environmental protection silver powder matte metallic paint film is generally below 80° at an incident angle of 60°

Method used

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  • Water-based environment-friendly matte aluminum powder metallic paint and preparing method thereof
  • Water-based environment-friendly matte aluminum powder metallic paint and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0021] (1) Formula and the weight ratio of each component:

[0022]

[0023] (2) Preparation method:

[0024] 55 parts of water-soluble acrylic resin (mass fraction 55%), 4 parts of amino resin (melamine formaldehyde resin), 3 parts of ultrafine silica (ACEMATTTS100), 5 parts of metal orientation agent (Eastman CMCAB-641-0.5) , 1 part of water-based dispersant (BYK-190), 0.3 part of water-based defoamer (Dow Corning DC-65), 0.2 part of wetting agent (BYK-341), 21.1 parts of deionized water into the high-speed disperser according to the above ratio , stirring at a speed of 800-1200rpm, adding 0.4 parts of amine neutralizer DMEA while stirring, until the metal directional agent (Eastman CMCAB-641-0.5) in the mixture is completely dissolved, and the pH value of the test coating is 7.5- 8. Then add 10 parts of water-based aluminum-silver paste (Aika PM / PMH8), and stir evenly at low speed.

[0025] (3) Effect:

[0026] Conduct electrophoresis test on 6063 aluminum plate of 5...

Embodiment example 2

[0028] (1) Formula and the weight ratio of each component:

[0029]

[0030] (2) Preparation method:

[0031] 60 parts of water-soluble acrylic resin (mass fraction 55%), 4 parts of amino resin (melamine formaldehyde resin), 5 parts of ultrafine silica (ACEMATTTS100), 3 parts of metal orientation agent (Eastman CMCAB-641-0.5) , 1 part of water-based dispersant (BYK-190), 0.3 part of water-based defoamer (Dow Corning DC-65), 0.2 part of wetting agent (BYK-341), 20.1 parts of deionized water into the high-speed disperser according to the above ratio , stirring at a speed of 800-1200rpm, adding 0.4 parts of amine neutralizer DMEA while stirring, until the metal directional agent (Eastman CMCAB-641-0.5) in the mixture is completely dissolved, and the pH value of the test coating is 7.5- 8. Then add 6 parts of water-based aluminum silver paste (Aika PM / PMH8), and stir evenly at low speed. (3) Effect:

[0032] Conduct electrophoresis test on 6063 aluminum plate of 50×150mm to...

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Abstract

The invention relates to the field of paint manufacturing, in particular to water-based environment-friendly matte aluminum powder metallic paint and a preparing method thereof. According to the formula, the metallic paint comprises, by weight, 50-60 parts of water-soluble acrylic resin, 3-5 parts of amino resin, 2-6 parts of superfine silica, 8-12 parts of water-based aluminum paste, 2-7 parts of metal orientation agents (CMCAB), 0.5-1.5 parts of water-based dispersant, 0.1-0.3 part of water-based defoamer, 0.1-0.3 part of wetting agent, 0.1-0.8 part of amine neutralizer and the balance deionized water. As the water is used as diluent, usage of organic solvent in the coating industry is reduced, shrinkage cavity and pinhole phenomena can be avoided, and the levelling performance is high; sagging can be effectively prevented, aluminum powder arrangement is improved, and aluminum powder can be arranged in order. The coating film gloss of the water-based environment-friendly matte aluminum powder metallic paint can reach over 95 degrees when the incident angle is 60 degrees.

Description

technical field [0001] The invention relates to the field of paint production, in particular to a water-based environment-friendly silver powder matt metallic paint and a preparation method thereof. Background technique [0002] At present, the application of industrial coatings in the world is mainly based on solvent-based coatings. However, with the continuous improvement of environmental awareness in various countries, the use of organic solvents has also put forward higher and higher requirements. In order to reduce the pollution of organic solvents to the environment The environmental protection characteristics of water-based coatings are particularly prominent. All advanced industrial countries have included them in the development direction of industrial coatings in the future and are actively developing them. [0003] Due to the high surface tension of water-based environmental protection silver powder matt metallic paint (the surface tension of water is 72mN / m, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/12C09D161/28C09D5/44C09D7/12
Inventor 白明国
Owner ZHAOQING CITY CAIXIN DECORATION MATERIALS
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