Waterproofing agent of acrylic ester coat, and preparation method
An acrylate, water repellent technology, applied in coatings, biocide-containing paints, antifouling/underwater coatings, etc., can solve problems such as high water repellency and water resistance, environmental pollution, etc., and achieve high water repellency and water resistance. effect, excellent windproof, excellent film-forming effect
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Embodiment 1
[0021] Clean the polymerization kettle with a high-pressure hot water gun, apply Italian yellow (TS0301) 150g on the wall of the kettle with an electric spray valve, and wash the kettle with tap water after 20 minutes. Add 340KG of pure water and 1KG of PVA (5%) suspending agent into the still, stir and mix. Then put 50KG of methyl acrylate, 112KG of butyl acrylate, 30KG of acrylonitrile, 4KG of acrylic acid, 4KG of hydroxyethyl methacrylate, and 0.7KG of initiator azobisisobutyronitrile into the polymerization kettle. React at 72±5°C for half an hour, then react at 70±5°C for 1.5-2 hours, raise the temperature to 80±5°C and continue to keep warm for 1.5-2 hours, then add 0.4KG of water-based initiator ammonium persulfate and continue to keep warm for 0.5-1 hour . Unreacted monomer was removed in vacuo for 0.5 hours. Cool down to 40°C, dehydrate by centrifugation, and wash three times with 1000KG water. Dry to obtain 198KG of acrylic resin, and there is very little resin st...
Embodiment 2
[0023] Rinse the polymerization kettle with a high-pressure hot water gun, apply 100g of British Blue (HYF-03) to the wall of the kettle with an electric spray valve, and wash the kettle with tap water after 20 minutes. Add 300KG of pure water and 2KG of PVA (5%) suspending agent into the still, stir and mix. Then put 40KG of ethyl acrylate, 133KG of isobutyl acrylate, 20KG of acrylonitrile, 3KG of acrylic acid, 4KG of hydroxyethyl methacrylate, and 0.6KG of benzoyl peroxide as an initiator into the polymerization kettle. React at 75±5°C for half an hour, then react at 73±3°C for 1.5-2 hours, raise the temperature to 85-90°C and keep warm for 1.5-2 hours, then add 0.4KG of aqueous initiator potassium persulfate and keep warm for 1 hour. Unreacted monomer was removed in vacuo for 0.5 hours. Cool down to 40°C, dehydrate by centrifugation, and wash three times with 1000KG water. Dry to obtain 198KG of acrylic resin, and there is very little resin sticking to the wall of the ket...
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