2results about How to "Effective flocculation" patented technology

This invention relates to the field of polymer material synthesis technology, specifically disclosing a water-dispersible cationic polyacrylamide material and its preparation method. The material is composed of the following raw materials in parts by weight: 45-50 parts modified acrylamide, 15-20 parts cationic monomer, 5-10 parts N-vinylpyrrolidone, 0.8-1.2 parts surfactant, 90-100 parts deionized water, 0.1-0.5 parts crosslinking agent, 3-8 parts hyperbranched polyester Boltorn (H₂O), 0.08-0.12 parts ammonium persulfate, 0.03-0.05 parts sodium bisulfite, and 0.5-0.8 parts aluminum citrate. The preparation process of this invention is simple and highly operable. The provided polyacrylamide material has a high specific surface area, excellent water dispersibility, good stability, and salt resistance, making it suitable for various industrial applications such as water treatment and papermaking, exhibiting good flocculation performance and reinforcing effects.

The invention discloses emulsion type polyacrylamide and a preparation method thereof, and belongs to the technical field of polymer emulsion, the emulsion type polyacrylamide is prepared from the following raw materials: 20-40 parts of acrylamide monomer, 15-25 parts of cationic monomer, 10-15 parts of dispersion stabilizer, 35-45 parts of ammonium sulfate, 2-3 parts of initiator, 7-8 parts of modified nano aluminum oxide and 70-80 parts of water. The emulsion type polyacrylamide synthesized by the invention is a cationic polyacrylamide emulsion, and takes modified nano aluminum oxide as an inner core structure and a copolymer synthesized by an acrylamide monomer and a cationic monomer as a shell structure. The synthesized cationic polyacrylamide emulsion integrates a flocculating agent and a catalyst and has adsorption, flocculation and degradation properties, and the dispersity of the cationic polyacrylamide emulsion is greatly improved.