Surface antifouling paint for aluminum alloy doors and windows
A kind of aluminum alloy doors and windows, anti-fouling technology, applied in the field of aluminum alloy doors and windows, can solve the problems of difficult removal, time-consuming and laborious, accumulation of stains, etc., to achieve the effects of increasing coverage, improving coating quality, and reducing surface tension
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Embodiment 1
[0015] An anti-fouling coating on the surface of aluminum alloy doors and windows, which is made of 70 parts by weight of polyurethane, 12 parts of titanium dioxide, 3 parts of zinc molybdate, 10 parts of polyvinyl alcohol, 10 parts of calcium carbonate, and expanded vitrified micro 8 parts of beads, 1 part of titanate, 1.5 parts of erucamide, 15 parts of styrene-acrylic emulsion, 2 parts of vinyl trimethoxysilane, 12 parts of tributyl citrate modified starch, and 6 parts of polyacrylamide.
[0016] Further, the preparation method of the tributyl citrate modified starch is:
[0017] (1) Prepare a maleic anhydride solution with a mass fraction of 3.5%, mix the maleic anhydride solution with starch in a ratio of 200mL:50g, heat to 75°C, stir at 500r / min for 2 hours, and cool to room temperature naturally. Then vacuum filter, wash the starch with deionized water to neutrality, and dry it at 120℃ to constant weight;
[0018] (2) Take tributyl citrate and the starch obtained in step (1) ...
Embodiment 2
[0024] An anti-fouling paint on the surface of aluminum alloy doors and windows, which is made of 90 parts by weight of polyurethane, 15 parts of titanium dioxide, 6 parts of zinc molybdate, 18 parts of polyvinyl alcohol, 20 parts of calcium carbonate, and expanded vitrified micro 12 parts of beads, 3 parts of titanate, 2.5 parts of erucamide, 20 parts of styrene-acrylic emulsion, 5 parts of vinyl trimethoxysilane, 18 parts of tributyl citrate modified starch, and 12 parts of polyacrylamide.
[0025] Further, the preparation method of the tributyl citrate modified starch is:
[0026] (1) Prepare a maleic anhydride solution with a mass fraction of 3.5%, mix the maleic anhydride solution with starch in a ratio of 200mL:50g, heat to 75°C, stir at 500r / min for 2 hours, and cool to room temperature naturally. Then vacuum filter, wash the starch with deionized water to neutrality, and dry it at 120℃ to constant weight;
[0027] (2) Take tributyl citrate and the starch obtained in step (1)...
Embodiment 3
[0033] An anti-fouling coating on the surface of aluminum alloy doors and windows, which is made of the following components in parts by weight: 75 parts of polyurethane, 13 parts of titanium dioxide, 5 parts of zinc molybdate, 12 parts of polyvinyl alcohol, 18 parts of calcium carbonate, and expanded vitrified micro 10 parts of beads, 2 parts of titanate, 1.8 parts of erucamide, 16 parts of styrene-acrylic emulsion, 3 parts of vinyl trimethoxysilane, 15 parts of tributyl citrate modified starch, and 10 parts of polyacrylamide.
[0034] Further, the preparation method of the tributyl citrate modified starch is:
[0035] (1) Prepare a maleic anhydride solution with a mass fraction of 3.5%, mix the maleic anhydride solution and starch in a ratio of 200mL:50g, heat to 75°C, stir at 500r / min for 2 hours, and cool to room temperature naturally. Then vacuum filter, wash the starch with deionized water to neutrality, and dry it at 120℃ to constant weight;
[0036] (2) Take tributyl citrate...
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