Preparation method for high-solid-content low-viscosity polyacrylamide emulsion
A technology of polyacrylamide and high solid content, which is applied in the fields of water treatment and oil field chemicals, and can solve the problems of high viscosity of polyacrylamide emulsion products with high solid content, achieve the effects of lower viscosity, lower freezing point, and lower safety hazards
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[0019] Add 138 kg of acrylamide, 360 kg of deionized water, and 202 kg of acryloyloxyethyltrimethylammonium chloride solution with a mass ratio of 80% in the preparation kettle, and stir evenly; add 250 kg of dearomatized solvent oil in the emulsification kettle , 30 kg of emulsifier, 400 g of azo initiator, and stir evenly; add the water phase prepared in the preparation kettle into the emulsification kettle for high-speed shear emulsification, and control the temperature of the system at 10-15°C. After the emulsification is completed, pass Use high-purity nitrogen to drive oxygen for 1 hour, keep stirring, and add a solution containing 150 grams of oxidant dropwise during the period. After passing nitrogen to remove oxygen, empty the circulating water bath, and slowly add reducing agent dropwise for 2 hours. Stop adding dropwise when the temperature rises to 40°C , and at the same time pass into a circulating water bath at 40°C, stop stirring, and let it stand for 1 hour. Whe...
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