双水相聚合法合成阳离子聚丙烯酰胺及其絮凝性能
刘再满;魏亚玲
【期刊名称】《应用化学》 【年(卷),期】2011(028)008
【摘要】An aqueous two-phase polymerization of acrylamide ( AM ) with 2-( acryloyloxy) ethyl trimethylammonium chloride ( DAC ) was carried out using polyethylene glycol ( PEC) as dispersant and ammonium persulfate as the initiator. A series of cationic polyacrylamide(CPAM) flocculants was prepared. Effects of the ratio of monomers on the relative molecular mass, monomer conversion and cationic degree were studied. The CPAM was used as flocculating agent for the Yellow River water. The influence of the dosage of CPAM, the pH value of water sample, the stirring speed, the mixing and standing time on the flocculating performance were studied. The results shows that the cationic degree of CPAM increases with the decrease of m (AM)/m(CAD) , while the relative molecular mass and conversion slightly decrease. The flocculating efficiency depends on the dosage of CPAM, the pH, stirring speed, and the stirring and standing time. The removal rate of the impurities in the water samples is 92% under the optimum conditions:pH = 6, stirring speed 100 r/min, stirring time 15 min, standing time 10 min, CPAM 0. 3 mg/L.%以聚乙二醇(PEG)水溶液为分散剂,过硫酸铵(KPS)为引发剂,采用双水相聚合法,用新型阳离子单体丙烯酰氧乙基三
双水相聚合法合成阳离子聚丙烯酰胺及其絮凝性能
