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
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[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...
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[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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