Carboxylic butadiene-styrene latex specially used for cement
A technology of carboxylated styrene-butadiene latex and cement, applied in the field of special carboxylated styrene-butadiene latex for cement, can solve the problems of poor mechanical stability of adhesive force and high water loss rate, so as to improve the adhesive force, reduce water loss and improve the use effect. Effect
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Embodiment 1
[0019] After the inner cavity of the polymerization kettle is evacuated, 25 parts of butadiene, 30 parts of styrene, 1 part of acrylic acid, 5 parts of carboxylate, 0.05 parts of sulfonate, and 80 parts of soft water are put into the polymerization kettle in turn for polymerization reaction ;During the polymerization reaction, use a stirrer to stir the raw materials in the polymerization tank, raise the temperature in the polymerization tank to 60°C through the heating tube, add 1 part of potassium persulfate, and fully react for 0.5h; use the heating tube Raise the temperature in the polymerization kettle to 65°C, add 0.3 parts of molecular weight modifier and 0.5 parts of emulsifier to the polymerization kettle, and react for 10 minutes; use the built-in temperature sensor in the polymerization kettle to detect the temperature inside the polymerization kettle, when the temperature in the polymerization kettle When it reaches 75°C, degas the polymerization reactants in the pol...
Embodiment 2
[0022] After the inner cavity of the polymerization kettle is evacuated, 60 parts of butadiene, 70 parts of styrene, 5 parts of acrylic acid, 20 parts of carboxylate, 0.5 parts of sulfonate, and 110 parts of soft water are put into the polymerization kettle in turn for polymerization. ;During the polymerization reaction, use a stirrer to stir the raw materials in the polymerization tank, raise the temperature in the polymerization tank to 80°C through the heating tube, add 3 parts of potassium persulfate, and fully react for 1.5h; use the heating tube Raise the temperature in the polymerization kettle to 85°C, add 1 part of molecular weight modifier and 3 parts of emulsifier to the polymerization kettle, and react for 30 minutes; use the built-in temperature sensor in the polymerization kettle to detect the temperature inside the polymerization kettle, when the temperature in the polymerization kettle When it reaches 90°C, use degassing equipment to degas the polymerization rea...
Embodiment 3
[0025] After the inner cavity of the polymerization kettle is evacuated, 42 parts of butadiene, 50 parts of styrene, 3 parts of acrylic acid, 13 parts of carboxylate, 0.28 parts of sulfonate, and 95 parts of soft water are put into the polymerization kettle in turn for polymerization. ; During the polymerization reaction, use a stirrer to stir the raw materials in the polymerization tank, raise the temperature in the polymerization tank to 70°C through the heating tube, add 2 parts of potassium persulfate, and fully react for 1 hour; use the heating tube to The temperature in the polymerization kettle is raised to 75°C, add 0.65 parts of molecular weight modifier and 1.8 parts of emulsifier to the polymerization kettle, and react for 20 minutes; use the built-in temperature sensor in the polymerization kettle to detect the temperature inside the polymerization kettle, when the temperature in the polymerization kettle reaches At 82°C, use degassing equipment to degas the polymer...
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