CN103666130A - Preparation method of full water-borne fluorocarbon acid-resistant texture coating - Google Patents

Abstract

The invention provides a full water-borne fluorocarbon acid-resistant texture coating which is prepared from the following raw materials by weight percent: 10 to 20% of water, 0.2 to 1.8% of wetting agent, 0.2 to 1.8% of dispersing agent, 0.5 to 1.5% of defoamer, 2 to 6% of fungicide, 6 to 10% of rutile-type titanium dioxide powder, 10 to 20% of methyl cellulose, 25 to 40% of fluorocarbon emulsion, 1 to 3% of antifreeze, 30 to 45% of natural quartz sand, 0.2% to 6% of coalescing agents and 0.1 to 5.0% of thickener. The texture coating has the advantages of not only excellent outdoor weather resistance and alkali-acid resistance, but also strong adhesion, high hardness, scrub resistance and collision and impact resistance, and can be used for effectively bridging and covering small cracks in a wall body. The coating is non-toxic, environment-friendly, pollution-free and rich in texture and strong expressive force. The coating provided by the invention can play a role in protecting a decorated building from acid rain corrosion, showing long-lasting gorgeous appearance and prolonging the service life of the building.

Description

The preparation of the antiacid texture coating of a kind of full water-based fluorocarbon

Technical field the present invention relates to a kind of coating, and particularly a kind of skin surface has the water-borne coatings of the decoration texture effect of fluorine carbon Antacid effectiveness, belongs to chemistry painting industry technical field.

Background technology is in building coating industry; the water-borne coatings product with texture effect is applied more extensive on market; effect is different; but the weather resistance in the water-based texture coating of applying on market, xanthochromia and Acid Rain performance are not very desirable; for example publication number CN101851450A name is called the texture coating relating in the patent application of " a kind of waterborne fluorocarbon texture coating and its preparation method and application "; although have certain water-fast; weather-proof; the defencive functions such as stain resistant, but for a long time undesirable by not xanthochromia and Acid Rain index or do not relate to.And the acid and alkali-resistance of buildings in actual life, not flavescence and protect lastingly architectural appearance magnificent are that chemical technology field need be innovated raising.Therefore to have the alkaline-resisting antiacid texture coating of full water-based fluorocarbon antiacid, not flavescence performance significant in research.

Summary of the invention the object of this invention is to provide the antiacid texture coating of a kind of full water-based fluorocarbon, this texture coating not only has excellent outdoor weatherability, alkali resistant Antacid effectiveness, also there is extremely strong sticking power, hardness is high, scrubbing resistance, the functions such as anti-collision, shock resistance, effectively bridging and cover the advantages such as body of wall fine cracks, and asepsis environment-protecting, nuisanceless, it is abundant that texture is split by force expressive force.Can play lasting protection by the function of decorations buildings acid and alkali rain corrosion, represent lastingly magnificent outward appearance, extend buildings work-ing life.

The preparation of the antiacid texture coating of a kind of full water-based fluorocarbon is by weight percentage:

Water 10-20%; Wetting agent 0.2～1.8%; Dispersion agent 0.2～1.8%; Defoamer 0.5-1.5%; Sterilant 2-6%; Rutile titanium white powder: 6-10%; Methylcellulose gum 10-20%; Fluorine carbon emulsion 25～40%; Frostproofer 1～3%; Natural siliceous sand: 30-45%; Film coalescence aid 0.2～6%; Thickening material 0.1～5.0%.

The characteristic organic fluorine element of the fluorine carbon emulsion that the present invention uses surpasses 6%, splendid water tolerance, overlength weathering resistance, anti-contamination, not xanthochromia.Alkali resistant, Acid Rain, salt fog resistance.Paint film light, plentiful, good fluidity.Be widely used in super weather-proof senior exterior wall latex paint, the painting of elastic emulsion lacquer painting.

The methylcellulose gum that the present invention uses, the hydrogen on the part or all of hydroxyl in Mierocrystalline cellulose is by methyl substituted product.There is good film-forming property, surface abrasion resistance, feature that stability in storage is good, for improving water-retentivity and intensity.

The wetting agent that the present invention uses, can reduce the interfacial tension of liquid and solid surface, make solid surface be easy to be soaked by liquid, with dispersion agent force action, pigment and filler can be dispersed in emulsion well, prevent pigment flocculation and cause precipitation or the retrogradation of emulsion coatings, can improve opacifying power, levelling property and the film coated surface smoothness etc. of emulsion coatings simultaneously.

Rutile titanium white powder used in the present invention, has kept crystalline structure fine and close and stable, and stronger opacifying power and reducing power, have good dispersiveness and good exterior durability.Its performance and opacifying power, weathering resistance and the chalking resistance close relation of filming.

The dispersion agent that the present invention uses is low-molecular-weight polypropylene amine acid salt dispersion agent, can significantly improve concentration and the stability thereof of color stuffing dispersion pulp, by this dispersion agent, can surround a layer charge at color stuffing particle surface, make repulsion mutually between particle, thereby reach the effect of stable slurry.

The talcum powder that the present invention uses is 325 orders, and natural siliceous sand is 200 orders.

The object of the invention is alkali resistant, Acid Rain, salt fog resistance performance in order to utilize fluorine carbon emulsion, act in this texture coating system, by fine graded natural siliceous sand as aggregate, modified acrylic polymer is base-material, with the refining antiacid texture coating of a kind of full water-based fluorocarbon forming of various auxiliary agents of adaptation.Not only have excellent outdoor weatherability, alkali resistant Antacid effectiveness, also have extremely strong sticking power, hardness is high, scrubbing resistance, the functions such as anti-collision, shock resistance, effectively bridging and cover the advantages such as body of wall fine cracks, and asepsis environment-protecting, nuisanceless, it is abundant that texture is split by force expressive force.Can play lasting protection by the function of decorations buildings acid and alkali rain corrosion, represent lastingly magnificent outward appearance, extend buildings work-ing life.

In general, the antiacid texture coating of water-based fluorocarbon is water-fast, alkaline-resisting antiacid, stain resistant, weathering resistance are strong, a lot of fields have successfully been applied to, as villa, the building quarter of hotel, office, rural style, high class residential zone, is also widely used in the indoor fields such as pastoralism finishing by people.In addition, texture coating also with for old city renewal and reform, heat insulation integrated, cement components and various post and panel structure external coating, effect is better.

It below embodiment, is an example of the present invention.Composition (weight percent) and the production technique of the preparation of the antiacid texture coating of a kind of full water-based fluorocarbon of the present invention are:

Low speed turns the water that adds successively 12% with per minute 200～400, 0.5% wetting agent, 0.8% dispersion agent, 0.6% defoamer, 2% sterilant, after 10 minutes stir, add successively again 8% rutile titanium white powder, after 10% methylcellulose gum, carry out high speed per minute 1000 and turn 30 minutes, low speed adds 30% fluorine carbon emulsion successively again, 3% frostproofer, 31% fine graded natural siliceous sand, 0.25% film coalescence aid, 1.80% thickening material, appropriate pH value conditioning agent, with per minute 600-800, turn and stir 40 minutes afterwards, finally by crossing check, filter, the packing of weighing.

Its indices of preparation of the antiacid texture coating of a kind of full water-based fluorocarbon of making according to the present invention all reaches JG/T24-2004 standard-required.This product is durable in use, and construction technology is simple, can horizontally scrape, perpendicular scrape or arc is scraped, and can produce multicoloured moulding, and clean mark is smooth.The outdoor weatherability of this texture coating, alkali resistant Antacid effectiveness are extremely strong, effectively bridging and cover the advantages such as body of wall fine cracks.And asepsis environment-protecting, nuisanceless, it is abundant that texture is split by force expressive force.The function that can play the corrosion of lasting protection decorating building acid and alkali rain, represents magnificent outward appearance lastingly, extends buildings work-ing life.

Claims (6)

1. the preparation of the antiacid texture coating of full water-based fluorocarbon is by weight percentage: water 10-20%; Wetting agent 0.2～1.8%; Dispersion agent 0.2～1.8%; Defoamer 0.5-1.5%; Sterilant 2-6%; Rutile titanium white powder: 6-10%; Methylcellulose gum 10-20%; Fluorine carbon emulsion 25～40%; Frostproofer 1～3%; Natural siliceous sand: 30-45%; Film coalescence aid 0.2～6%; Thickening material 0.1～5.0%.

2. the antiacid texture coating of a kind of full water-based fluorocarbon according to claim 1, is characterized in that used emulsion is for fluorine carbon emulsion, and its characteristic organic fluorine element surpasses 6%, there is splendid water tolerance, overlength weathering resistance, anti-contamination, xanthochromia, does not have more alkali resistant, Acid Rain, salt fog resistance performance.

3. the antiacid texture coating of a kind of full water-based fluorocarbon according to claim 1, is characterized in that used ether of cellulose solution is methocel solution, has good film-forming property, surface abrasion resistance, feature that stability in storage is good.

4. the antiacid texture coating of a kind of full water-based fluorocarbon according to claim 1, is characterized in that used dispersion agent, for low-molecular-weight polypropylene amine acid salt dispersion agent, has the excellent effect of stable slurry.

5. the antiacid texture coating of a kind of full water-based fluorocarbon according to claim 1, is characterized in that used talcum powder is 325 orders, and quartz sand is 200 orders.

6. the antiacid texture coating of a kind of full water-based fluorocarbon according to claim 1, it is characterized in that used rutile titanium white powder, both kept crystalline structure fine and close and stable, tool is stronger again opacifying power and reducing power, have good dispersiveness and good exterior durability.