| 双水相聚合法合成阳离子聚丙烯酰胺及其絮凝性能 |
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| 引用本文： | 刘再满,魏亚玲.双水相聚合法合成阳离子聚丙烯酰胺及其絮凝性能[J].应用化学,2011,28(8):874-878. |
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| 作者姓名： | 刘再满 魏亚玲 |
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| 作者单位： | (兰州交通大学化学与生物工程学院 兰州 730070) |
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| 基金项目： | 甘肃省自然科学研究基金计划项目(0803RJZA107) |
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| 摘 要： | 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甲基氯化铵（DAC）与丙烯酰胺（AM）共聚，制备了一系列新型阳离子聚丙烯酰胺(CPAM)类絮凝剂，讨论了单体含量对聚合物相对分子质量、转化率和阳离子度的影响。 并对黄河水做了絮凝实验，讨论了CPAM投加量、pH值、搅拌速率、搅拌时间及静置时间对絮凝效果的影响。 所得CPAM的阳离子度随DAC含量增加而增大，CPAM的平均相对分子质量和转化率随DAC含量增加略有下降。 当CPAM投加量为0.3 mg/L，pH=6，以100 r/min搅拌15 min后，再静置10 min，絮凝效果最好，去除率达到92%。
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| 关 键 词： | 双水相聚合 丙烯酰胺 阳离子单体 絮凝性能 |
| 收稿时间： | 2010-09-20 |
| 修稿时间： | 2010-11-09 |
Synthesis and Flocculating Properties of Cationic Polyacrylamide by Aqueous Two-phase Polymerization |
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| LIU Zaiman,WEI Yaling.Synthesis and Flocculating Properties of Cationic Polyacrylamide by Aqueous Two-phase Polymerization[J].Chinese Journal of Applied Chemistry,2011,28(8):874-878. |
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| Authors: | LIU Zaiman WEI Yaling |
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| Institution: | (School of Chemical and Biological Engineering,Lanzhou Jiaotong University,Lanzhou 730070) |
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| Abstract: | An aqueous two-phase polymerization of acrylamide(AM) with 2-(acryloyloxy) ethyl trimethylammonium chloride(DAC) was carried out using polyethylene glycol(PEG) 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 valu... |
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| Keywords: | aqueous two-phase polymerization acrylamide cationic monomer flocculating performance |
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