By Dispersion Polymerization Polyacrylamide-water Emulsion

PAM is the most widely used organic macromolecule, has been widely used in oil extraction, water treatment, refine sugar and coal washing, processing, paper and other industrial sectors.In recent years developed a new product—water package of water type PAM emulsion. The emulsion is the polymer emulsion which makes when the water soluble polymer disperse to the water soluble medium under the function of dispersing agent, It may use massive water to dilute when we need to use, The polymer dissolves quickly in the water. This kind of water package of water type PAM emulsion has the merit: easy dry easy to dissolve, and the dispersion medium is water-soluble, so it applies widely in the domain of low oil content, such as paper industry flocculant and so on.At first, the article synthesize synthetic monomer stabilizer TM4 with polyvinyl alcohol and maleic acid , contrast TM4 to and the large molecules stabilizer (PVP) : less dosage, higher solid content of water package of water type PAM emulsion.In addition, Inspected factors of initiator density monomer density temperature, amount used of stabilizer and reaction time of the polyreaction influence. Through the massive experiments, the article has determined the acrylic amide polymerization optimized craft parameter:Initiator density: ω_i =0.0015Monomer density: 35%Amount used of TM4: mTM4/mAM=0.03 Temperature : 50 ℃Polymerization time: 6 hoursUnder this condition, the molecular weight of the polyacrylamide achieve 87500, solid content of the PAM emulsion achieves 37%.