Preparation and Flocculating Performance of P (AM-DAC-AANa) Copolymer

Abstract:

Amphoteric ionic polyacrylamide P (AM-DAC-AANa) was prepared in aqueous solution using acrylamide (AM), 2-(acryloyloxy) ethyltrimethylammonium chloride (DAC) and sodium acrylate (AANa) as materials by photo assisted initiation. The influences of reaction conditions on intrinsic viscosity and solubility of product were studied. Under the conditions of initiation temperature 20°C, monomer concentration 32%, pH=6 and initiator concentration 0.010%, the intrinsic viscosity and dissolving time of polymer were 13.56dL/g and 66min respectively. Moreover, the flocculating performance of the obtained copolymer was also studied. The results showed that under the conditions of P(AM-DAC-AANa) dosage 0.0250%, intrinsic viscosity 12.13dL·g^-1, ionic degree 25%, m (DAC):m (AANa)=1:2, the transmittance of the supernatant, flocculating rate and dewatering rate were 93.90%, 84.47% and 92.41% respectively.

• Periodical: Applied Mechanics and Materials (Volumes 448-453)
• Pages: 818-822
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.448-453.818
• Online since: October 2013
• Authors: Yu Zhang, Min Min Fu, Fu Sheng Liu*, Shi Tao Yu
• Keywords: Acrylamide, Amphoteric Polyacrylamide, Flocculating Performance, Photo Assisted Initiation

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