Anti-fading coating and preparation method thereof
An anti-fading and coating technology, which is applied in the direction of radiation-absorbing coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of affecting the decorative effect of exterior walls, reducing color and affecting appearance, etc., and achieve good UV absorption performance, Enhance color retention performance, enhance the effect of color retention
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Embodiment 1
[0024] 1) Weigh the following raw materials: polyurethane resin 100kg, polyvinylidene fluoride emulsion 60kg, nano zinc oxide 15kg, tea 40kg, plant compound extract 20kg, coloring pigment 30kg, sodium polyacrylate 10kg, calcium chloride 0.5kg, Dipropylene glycol butyl ether 5kg, silicone defoamer 5kg, polybutylacrylate 5kg, polyethylene wax 5kg, vegetable oil 5kg and water 70kg;
[0025] 2) Add sodium polyacrylate, calcium chloride, nano-zinc oxide and coloring pigments to 30kg of water to obtain mixture A;
[0026] 3) Take the polyurethane resin, polyvinylidene fluoride emulsion and plant compound extract and add them to the mixture A in step 2), mix well, stir and disperse for 40min under the stirring condition of 950rmp, and obtain the mixture B;
[0027] 4) Add tea, vegetable oil, dipropylene glycol butyl ether, silicone defoamer, polybutylacrylate, polyethylene wax and 40kg of water to the mixture B obtained in step 3), mix well, and stir at 700rpm Disperse for 30 minute...
Embodiment 2
[0030] 1) Weigh the following raw materials: polyurethane resin 115kg, polyvinylidene fluoride emulsion 65kg, nano zinc oxide 20kg, tea 48kg, plant compound extract 22kg, coloring pigment 32kg, sodium polyacrylate 16kg, calcium chloride 0.9kg, Dipropylene glycol butyl ether 6kg, silicone defoamer 6kg, polybutylacrylate 6kg, polyethylene wax 6kg, vegetable oil 7kg and water 78kg;
[0031] 2) Add sodium polyacrylate, calcium chloride, nano-zinc oxide and coloring pigments to 35kg of water to obtain mixture A;
[0032] 3) Take the polyurethane resin, polyvinylidene fluoride emulsion and plant compound extract and add them to the mixture A in step 2), mix well, stir and disperse for 42min under the stirring condition of 960rmp, and obtain the mixture B;
[0033] 4) Add tea, vegetable oil, dipropylene glycol butyl ether, silicone defoamer, polybutylacrylate, polyethylene wax and 43kg of water to the mixture B obtained in step 3), mix well, and stir at 750rpm Disperse for 32 minute...
Embodiment 3
[0036] 1) Weigh the following raw materials: polyurethane resin 118kg, polyvinylidene fluoride emulsion 78kg, nano-zinc oxide 23kg, tea 52kg, plant compound extract 24kg, coloring pigment 48kg, sodium polyacrylate 18kg, calcium chloride 1.3kg, Dipropylene glycol butyl ether 6kg, silicone defoamer 6kg, polybutylacrylate 6kg, polyethylene wax 6kg, vegetable oil 8kg and water 78kg;
[0037] 2) Add sodium polyacrylate, calcium chloride, nano-zinc oxide and coloring pigments to 38kg of water to obtain mixture A;
[0038] 3) Take the polyurethane resin, polyvinylidene fluoride emulsion and plant compound extract and add them to the mixture A in step 2), mix well, stir and disperse for 48 minutes under the stirring condition of 990rmp, and obtain the mixture B;
[0039]4) Add tea, vegetable oil, dipropylene glycol butyl ether, silicone defoamer, polybutylacrylate, polyethylene wax and 40kg of water to the mixture B obtained in step 3), mix well, and stir at 800rpm Disperse for 32 mi...
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