Aqueous silvery aluminum powder flashing paint

A flash paint, water-based technology, used in metal-free paints, polyurea/polyurethane coatings, coatings, etc., can solve the problems of difficult oiliness of aluminum powder arrangement, different construction performance and oiliness, and difficult to solve interlayer adhesion. , to achieve the effect of improving rework adhesion, good varicolor effect and good metal flash effect

Active Publication Date: 2013-01-16
ZHEJIANG SHENGLIBANG PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the slow water volatilization of water-based aluminum powder paint and the absence of CAB-type directional alignment cellulose used in oil-based flash paints, aluminum powder alignment problems are more difficult to solve than oil-based paints.
Moreover, due to slow water volatilization and high surface tension, water-based paints are prone to problems such as air bubbles, sagging, and edge shrinkage during spraying and baking, and the construction performance is also different from oil-based paints.
In particular, it is difficult to rework water-based paint on oil-based substrates. This is because rework will be produced during spraying construction, while the finish varnish uses oil-based paint, so rework must be done with water-based paint on oil-based substrates. Due to different systems and tension Not the same, the interlayer adhesion during rework is more difficult to solve

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In this embodiment, the water-based silver-white aluminum powder flash paint consists of the following ingredients and proportions (parts by weight):

[0023] Water-based acrylic resin: 30 parts by mass. Acrylic resin is the main resin commonly used in water-based plastic paints due to its super hot water resistance, excellent weather resistance, chemical resistance and good pigment wettability.

[0024] Water-based polyurethane resin: 6 parts by mass. Polyurethane dispersion can be used to improve adhesion due to its excellent adhesion, abrasion resistance and flexibility.

[0025] Neutralizer: 0.3 parts by mass, pH value below 7 is acidic, easily reacts with aluminum powder to generate hydrogen, and has poor stability. When it is above 9, it is easy to burn out the aluminum flakes and darken the aluminum pigment, so the pH value of the water-based aluminum powder paint system is generally controlled at about 8.

[0026] Diethylene glycol butyl ether: 3 parts by mass,...

Embodiment 2

[0041] In this embodiment, the water-based silver-white aluminum powder flash paint consists of the following ingredients and proportions (parts by weight):

[0042] Water-based acrylic resin: 50 parts by mass.

[0043] Waterborne polyurethane resin: 7 parts by mass.

[0044] Neutralizer: 0.5 parts by mass.

[0045] Diethylene glycol butyl ether: 2 parts by mass.

[0046] Substrate wetting agent: 0.5 parts by mass.

[0047] Water: 15 parts by mass.

[0048] Candle liquid: 2 parts by mass.

[0049] Alkali-swellable associative thickener: 2 parts by mass.

[0050] Associative thickener: 6 parts by mass.

[0051] Water-based aluminum silver paste: 15 parts by mass.

[0052]In this embodiment, the water-based aluminum silver paste is prepared from diethylene glycol butyl ether, a dispersant and water-based aluminum powder, and the parts by weight of each component are 43, 2, and 55, respectively.

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PUM

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Abstract

The invention provides an aqueous silvery aluminum powder flashing paint, belongs to the technical field of coating paint, and solves the problems that aqueous aluminum powder in aqueous paint is imperfect in orientation, hard to apply and easy to rework. The aqueous silvery aluminum powder flashing paint comprises, by weight part, 30-60 parts of watercraft acrylic resin, 3-9 parts of waterborne polyurethane resin, 0.1-0.5 part of neutralizer, 2-6 parts of diethylene glycol monobutyl ether, 0.2-1 part of base wetting agent, 10-20 parts of water, 15-30 parts of metallic pigment orientation additives and 15-30 parts of aqueous aluminum paste. Orientation of the aqueous aluminum powder is affected by the metallic pigment orientation additives, the PH(potential of hydrogen) value, resin and the like, so that the aqueous aluminum powder can be oriented by being parallel to the base to utmost extent, and good metal flashing effect and flip-flop effect are guaranteed. Since watercraft acrylic resin and the waterborne polyurethane resin are combined, rework adhesion of the paint on an oil primer is improved. In addition, the aqueous silvery aluminum powder flashing paint is environment-friendly, energy-saving and safe.

Description

technical field [0001] The invention belongs to the technical field of coating paints, and relates to a water-based silver-white aluminum powder glitter paint. Background technique [0002] With the improvement of people's living standards and the development of society, the performance requirements of coatings are getting higher and higher, and at the same time, the application of coatings is required to cause less and less environmental pollution. [0003] Since the 1960s, the United States, the European Union, Japan and other countries and regions have successively issued a series of regulations to limit VOC emissions. my country has also issued a series of regulations to limit emissions since 1973. Environmental protection regulations have become more and more stringent. Therefore, the development Environmentally friendly coatings have become a hot spot in the field of coatings research. At present, the main varieties are water-based coatings, powder coatings, high-solid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D175/04C09D5/38C09D7/12
Inventor 洪建荣
Owner ZHEJIANG SHENGLIBANG PAINT
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