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Waterproof and oil-stain-resistant water-based exterior wall paint and preparation method thereof

An exterior wall paint and anti-oil staining technology, which is applied to biocide-containing paints, anti-fouling/underwater coatings, reflective/signal coatings, etc., can solve poor water and oil repellency, adhesion pollution, and poor overall application effect Improve the hydrophobic performance, improve the surface hardness, and improve the water-repellent performance

Inactive Publication Date: 2021-01-08
HUBAO NEW MATERIAL TECH SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The water-based exterior wall paint in the above-mentioned related art is difficult to form a hydrophobic and oleophobic protective film on the surface of the paint film when curing, so its water and oil repellency is not good, so that the water-based exterior wall paint in the related art is painted outside. The wall is easily polluted by sewage or oil stains, and the overall application effect is not good

Method used

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  • Waterproof and oil-stain-resistant water-based exterior wall paint and preparation method thereof
  • Waterproof and oil-stain-resistant water-based exterior wall paint and preparation method thereof
  • Waterproof and oil-stain-resistant water-based exterior wall paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] A waterproof, oil-repellent and sewage-resistant exterior wall paint, the composition and content of raw materials used in its preparation are as follows:

[0056]

[0057]

[0058] Above-mentioned thickener is made up of hydroxyethyl cellulose, polyurethane thickener and alkali-swellable thickener, calculates by weight ratio, namely hydroxyethylcellulose: polyurethane thickener: alkali-swellable thickener is 1: 1.5:1.5(0.26kg:0.4kg:0.4kg);

[0059] The above dispersant is composed of HY-168 dispersant and HY-5040 dispersant. Calculated by weight ratio, HY-168 dispersant: HY-5040 dispersant is 1:1.5 (0.2kg: 0.3kg);

[0060] The above-mentioned other additives are composed of pH regulator, defoamer and wetting agent. Calculated by weight ratio, pH regulator: wetting agent: defoamer is 3:5:6 (0.15kg: 0.25kg: 0.3kg) .

[0061] The preparation method of the above-mentioned a kind of waterproof and oil-repellent sewage exterior wall paint specifically comprises the f...

Embodiment 2

[0067] A waterproof, oil- and sewage-repellent exterior wall paint, which is different from Example 1 in that the amount of raw materials used in the waterproof, oil- and sewage-repellent exterior wall paint is different, as shown in Table 1, and the others are the same as in Example 1.

[0068] The preparation method of above-mentioned a kind of waterproof and oil-repellent sewage exterior wall paint, differs from embodiment 1 in that:

[0069] (1) Mix water, cellulose and N-(methylol) acrylamide, and control the dispersing machine at 200r / min for 3min at a temperature of 100°C to obtain mixture 1;

[0070] (2) Add pH adjuster, 0.15 kg defoamer, and alkali-swellable thickener to mixture 1 in (1), and stir for 4 minutes at a speed of 500 r / min to obtain mixture 2;

[0071] (3) Add wetting agent, HY-168 dispersant, HY-5040 dispersant, ethylene glycol, fumed silica, heavy calcium, perfluoroalkyl ethyl methacrylate to (2) Mixture 2 was stirred at a speed of 1200r / min for 30min t...

Embodiment 3

[0074] A waterproof, oil- and sewage-repellent exterior wall paint, which is different from Example 1 in that the amount of raw materials used in the waterproof, oil- and sewage-repellent exterior wall paint is different, as shown in Table 1, and the others are the same as in Example 1.

[0075] The preparation method of above-mentioned a kind of waterproof and oil-repellent sewage exterior wall paint, differs from embodiment 1 in that:

[0076] (1) Mix water, cellulose and N-(methylol)acrylamide, and control the dispersing machine at 400r / min for 5min at a temperature of 100°C to obtain mixture 1;

[0077] (2) Add pH adjuster, 0.15 kg defoamer, and alkali-swellable thickener to mixture 1 in (1), and stir at a speed of 700 r / min for 6 minutes to obtain mixture 2;

[0078] (3) Add wetting agent, HY-168 dispersant, HY-5040 dispersant, ethylene glycol, fumed silica, heavy calcium, perfluoroalkyl ethyl methacrylate to (2) Mixture 2 was stirred at a speed of 1500r / min for 30min to...

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Abstract

The invention relates to the field of water-based exterior wall paint, and particularly discloses a waterproof and oil-stain-resistant water-based exterior wall paint and a preparation method thereof.The waterproof and oil-stain-resistant water-based exterior wall paint is prepared from water, ethylene glycol, fumed silica, heavy calcium carbonate, an acrylic emulsion, a thickening agent, N-(hydroxymethyl)acrylamide, perfluoroalkyl ethyl methacrylate and other assistants. The preparation method comprises the following steps of: mixing water, cellulose and N-(hydroxymethyl)acrylamide to obtaina mixture I; adding the other assistants and an alkali swelling thickener into the mixture I, and performing mixing to obtain a mixture II; adding other assistants, ethylene glycol, fumed silica, heavy calcium carbonate and perfluoroalkyl ethyl methacrylate into the mixture II, and performing mixing to obtain a mixture III; and adding the acrylic emulsion, other assistants, a polyurethane thickener and a bactericide into the mixture III, and performing mixing to obtain the waterproof and oil-stain-resistant water-based exterior wall paint. The waterproof and oil-stain-resistant water-based exterior wall paint can be used for coating the surface of an exterior wall of a building, and excellent waterproof and oil-stain-resistant performance can be achieved.

Description

technical field [0001] This application relates to the field of water-based exterior wall paint, more specifically, it relates to a waterproof, oil- and sewage-resistant exterior wall paint Background technique [0002] All paints that use water as a solvent or as a dispersion medium can be called water-based paints. Water-based paints can be applied to the outer surfaces of exterior walls, interior walls, furniture and other objects. [0003] The water-based exterior wall paint in the related art includes the following raw materials: titanium dioxide, wollastonite powder, calcium silicate powder, dispersant, ethylene glycol, pure acrylic emulsion, sodium methyl silicate, triethanolamine, hydroxypropyl methylcellulose Factors, defoamers, wetting agents, preservatives, water. [0004] The water-based exterior wall paint in the above-mentioned related art is difficult to form a hydrophobic and oleophobic protective film on the surface of the paint film when curing, so its wat...

Claims

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Application Information

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IPC IPC(8): C09D4/06C09D4/02C09D5/16C09D7/61C09D7/20C09D7/44C09D5/33
CPCC09D4/06C09D5/004C09D5/1687C09D7/20
Inventor 孟奎孟运
Owner HUBAO NEW MATERIAL TECH SHANGHAI CO LTD
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