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 oi

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

Example Embodiment

[0054]Example 1

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

[0056]

[0057]

[0058]The above thickener is composed of hydroxyethyl cellulose, polyurethane thickener and alkali swelling thickener, calculated by weight ratio, namely hydroxyethyl cellulose: polyurethane thickener: alkali swelling 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 other additives mentioned above are composed of pH adjuster, defoamer and wetting agent. Calculated by weight ratio, pH adjuster: wetting agent: defoamer is 3:5:6 (0.15kg: 0.25kg: 0.3kg) .

[0061]The above-mentioned preparation method of water- and oil-repellent sewage exterior wall paint specifically includes the following operation steps:

[0062](1) Mix water, ce...

Example Embodiment

[0066]Example 2

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

[0068]The above-mentioned preparation method of water- and oil-repellent sewage exterior wall paint differs from Example 1 in that:

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

[0070](2) Add pH adjuster, 0.15kg defoamer, and alkali swelling thickener to the first mixture in (1), and stir at 500r / min for 4min to obtain mixture two;

[0071](3) Add wetting agent, HY-168 dispersant, HY-5040 dispersant, ethylene glycol, fumed silica, heavy calcium, perfluoroalkyl ethyl methacrylate to (2) In the second mixture, stir at a speed of 1200r / min for 30 minutes to obtain the third mixture;

[0072](4) Add elastic acrylic emulsio...

Example Embodiment

[0073]Example 3

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

[0075]The above-mentioned preparation method of water- and oil-repellent sewage exterior wall paint differs from Example 1 in that:

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

[0077](2) Add pH adjuster, 0.15kg defoamer, and alkali swelling thickener to the first mixture in (1), and stir at 700r / min for 6min to obtain mixture two;

[0078](3) Add wetting agent, HY-168 dispersant, HY-5040 dispersant, ethylene glycol, fumed silica, heavy calcium, perfluoroalkyl ethyl methacrylate to (2) In the second mixture, stir at 1500r / min for 30min to obtain the third mixture;

[0079](4) Add elastic acrylic emulsion, 0.15kg defoam...

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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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