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Ultra-high-dirt-resistance outer wall elastic flat coating emulsion paint and preparation method thereof

A stain-resistant, latex paint technology, applied in latex paint, anti-fouling/underwater paint, coatings, etc., can solve the problem that elastic flat latex paint cannot have high stain resistance and high elasticity at the same time, and the preparation method is complicated. and other problems, to achieve the effects of excellent splash resistance and leveling, good storage stability and excellent color development.

Inactive Publication Date: 2016-04-06
SKSHU PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a kind of ultra-high stain-resistant exterior wall elastic flat latex paint and a preparation method thereof, which overcomes the disadvantages that the existing elastic flat latex paint cannot have high stain resistance and high elasticity at the same time, and the preparation method is complicated. It has ultra-high stain resistance (stain resistance 300%, elongation at break at low temperature >60%), excellent defoaming properties, and a simple preparation method advantage

Method used

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  • Ultra-high-dirt-resistance outer wall elastic flat coating emulsion paint and preparation method thereof
  • Ultra-high-dirt-resistance outer wall elastic flat coating emulsion paint and preparation method thereof
  • Ultra-high-dirt-resistance outer wall elastic flat coating emulsion paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] An ultra-high stain-resistant elastic flat latex paint for exterior walls, which is prepared from the following components by weight:

[0051]

[0052]

[0053] The ultra-high stain-resistant exterior wall elastic flat latex paint, which includes the following steps in sequence:

[0054] ①At a speed of 650rpm, add cellulose to the water for mixing and disperse for 12 minutes;

[0055]②At the speed of 900rpm, add 2-amino-2-methyl-1-propanol, polyacrylate ammonium salt dispersant, polyhydroxyalkyl ether nonionic wetting agent, ethylene glycol to the mixture prepared in step ①. Alcohol, phosphate ester surfactant, mineral oil defoamer, titanium dioxide, precipitated barium sulfate, heavy calcium carbonate and calcined kaolin are mixed, and then the speed is increased to 1600rpm, and the mixture is dispersed to a fineness of ≤60μm at this speed , wherein the amount of mineral oil defoamer is 1 / 2 of its own total weight;

[0056] ③At a speed of 700rpm, add UV cross-l...

Embodiment 2

[0058] An ultra-high stain-resistant elastic flat latex paint for exterior walls, which is prepared from the following components by weight:

[0059]

[0060]

[0061] The ultra-high stain-resistant exterior wall elastic flat latex paint, which includes the following steps in sequence:

[0062] ①At a speed of 500rpm, add cellulose to the water for mixing and disperse for 15 minutes;

[0063] ②At the speed of 800rpm, add 2-amino-2-methyl-1-propanol, polycarboxylate sodium salt dispersant, polyhydroxyalkyl ether nonionic wetting agent, propylene glycol to the mixture prepared in step ① , Water-based silicone defoamer, titanium dioxide, precipitated barium sulfate, heavy calcium carbonate and calcined kaolin are mixed, and then the speed is increased to 1800rpm, and the mixture is dispersed to a fineness of ≤60μm at this speed. Among them, the water-based The consumption of type organosilicon defoamer is 35% of its own gross weight;

[0064] ③At the speed of 500rpm, add u...

Embodiment 3

[0066] An ultra-high stain-resistant elastic flat latex paint for exterior walls, which is prepared from the following components by weight:

[0067]

[0068]

[0069] The ultra-high stain-resistant exterior wall elastic flat latex paint, which includes the following steps in sequence:

[0070] ①At a speed of 800rpm, add cellulose to the water for mixing and disperse for 8 minutes;

[0071] ②At a speed of 1200rpm, add 2-amino-2-methyl-1-propanol, a mixture of polyacrylic acid ammonium salt dispersant and polycarboxylate sodium salt dispersant, polyhydroxyalkyl ether to the mixture prepared in step ① Mix non-ionic wetting agent, propylene glycol, mineral oil defoamer and water-based silicone defoamer, titanium dioxide, precipitated barium sulfate, heavy calcium carbonate and calcined kaolin, then increase the speed to 1500rpm, Disperse the mixture to a fineness of ≤60 μm at this rotational speed, wherein the amount of the mixture of mineral oil defoamer and water-based s...

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Abstract

The invention relates to ultra-high-dirt-resistance outer wall elastic flat coating emulsion paint which is prepared from water, cellulose, a pH regulator, a dispersing agent, a wetting agent, a wetting and anti-freezing agent, an anti-freezing agent, a defoaming agent, titanium dioxide, precipitated barium sulphate, heavy calcium carbonate, calcined kaolin, ultraviolet cross-linking elastic emulsion, opaque polymer, a coalescing agent, a water-based paint intensifier, sterilization preservatives, mildew preventive and other thickener except cellulose. The emulsion paint overcomes the defects that existing elastic flat coating emulsion paint can not have high dirt resistance and elasticity at the same time, defoaming is difficult, and a preparation method is complex. The emulsion paint has the advantages that dirt resistance (smaller than 10%) is ultra-high, elasticity is high, normal-temperature breaking elongation is larger than 300%, low-temperature breaking elongation is larger than 60%, and the preparation method is simple and convenient.

Description

technical field [0001] The invention relates to a super-high stain-resistant elastic flat-coated latex paint for exterior walls and a preparation method thereof, which are applied in the field of water-based paints for architectural decoration. Background technique [0002] At present, the base material of the exterior wall of buildings is generally cement-based. After being affected by factors such as environment, temperature and humidity changes, the wall is extremely prone to tiny cracks. This not only destroys the beauty of the wall, but also easily erodes the internal wall. [0003] Elastic latex paint is divided into two types: elastic flat coating and elastic napping. The elastic flat latex paint is a thin coating (the dry film thickness of the coating film is about 60um), and the coating film is flat and smooth; while the elastic brushed latex paint is a thick coating (the film thickness is about 300um), and the coating film is flat and smooth. The membrane is thre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/02C09D5/16C09D7/12C09D201/00
CPCC09D5/022C08K2201/014C08L2205/02C08L2205/035C09D5/1656C09D7/61C09D7/63C09D7/65C09D201/00
Inventor 洪杰张仁波李祥文谢兵华赖李芳郑国伟
Owner SKSHU PAINT
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