Preparation method of acrylate emulsion for novel wood lacquer coating
A technology of acrylic and wood paints, which is applied in the direction of antifouling/underwater paints, coatings, paints containing biocides, etc., and can solve the problems of easy yellowing of pressure-sensitive adhesives, damage to the endocrine system, poor tensile strength and peel strength And other problems, to achieve good strength, improve adhesion, good stability
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Embodiment 1
[0015] Example 1: Pre-emulsion A: 1.5 ethyl acrylate, 1.5 methyl methacrylate, 32.0 butyl acrylate, 14.5 isooctyl acrylate, 0.5 sodium methacrylsulfonate, 0.5 sodium lauryl sulfate, methyl Acrylic acid 1.2, diacetone acrylamide 0.25, N-methylmaleimide 0.25, hydroxypropyl acrylate 1.5, vinyltrimethoxysilane 0.1, ammonium persulfate 0.1, deionized water 15.0; solution B: acryl alcohol poly Oxyethylene ether 0.8, ammonium persulfate 0.1, pH buffer (sodium bicarbonate) 0.03, deionized water 29.97; weigh 10% of the total weight of the pre-emulsion A and add it to B, heat up to 70°C, stir until blue light appears , the temperature was raised to 85°C, and the remaining pre-emulsion A, 0.15 of 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate, and 0.05 of dodecyl mercaptan were added dropwise, and the dropping rate was controlled so that Finish dropping within 2 hours, keep warm for 3.0 hours, cool down, add a pH adjuster (ammonia water) to 40°C to adjust the pH to neutral, cool down an...
Embodiment 2
[0017] Pre-emulsion A: ethyl acrylate 1.5, methyl methacrylate 1.2, butyl acrylate 35.0, isooctyl acrylate 13.5, sodium dodecylbenzenesulfonate 0.5, sodium dodecyl sulfate 0.8, methacrylic acid 1.0, N,N-methylenebisacrylamide 0.25, N-cyclohexylmaleimide 0.25, hydroxypropyl acrylate 1.8, vinyltrimethoxysilane 0.12, ammonium persulfate 0.2, deionized water 15.0; solution B: Propyl alcohol polyoxyethylene ether 1.0, ammonium persulfate 0.1, pH buffer (sodium bicarbonate) 0.05, deionized water 27.48; weigh 8% of the total weight of the pre-emulsion A and add it to B, heat up to 70°C, and stir until Bluish light appears, heat up to 83°C, add dropwise the remaining pre-emulsion A, 0.2 of 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate, 0.05 of dodecyl mercaptan, control The dropping rate is such that the dropping is completed within 2.5 hours, the temperature is kept for 1.0 hours, the temperature is lowered, and the pH value adjusting agent (ammonia water) is added to adjust the pH...
Embodiment 3
[0019] Pre-emulsion A: ethyl acrylate 1.5, methyl methacrylate 1.2, butyl acrylate 29.8, isooctyl acrylate 18.0, sodium dodecylbenzene sulfonate 0.8, sodium methacryl sulfonate 0.8, methacrylic acid 1.5 , N, N-methylenebisacrylamide 0.2, N-hydroxyethylmaleimide 0.25, hydroxypropyl acrylate 1.8, vinyltrimethoxysilane 0.15, ammonium persulfate 0.2, deionized water 15.0; solution B: Propyl alcohol polyoxyethylene ether 1.0, ammonium persulfate 0.1, pH buffer (sodium bicarbonate) 0.03, deionized water 27.57; weigh 12% of the total mass of pre-emulsion A and add it to B, heat up to 70°C, Continue to stir until blue light appears, heat up to 85°C, add dropwise the remaining pre-emulsion A, 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate 0.08, dodecyl mercaptan 0.02, control the dropping rate so that the dripping is completed within 3.0 hours, keep warm for 2.0 hours, cool down, add a pH value regulator (ammonia water) to 40°C to adjust the pH value to neutral, cool down and discharg...
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