| 抗交联剂对聚丙烯酰胺分子量和絮凝性能的影响 |
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| 引用本文： | 丁怡然.抗交联剂对聚丙烯酰胺分子量和絮凝性能的影响[J].云南环境科学,2012(5):1-4. |
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| 作者姓名： | 丁怡然 |
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| 作者单位： | 昆明理工大学环境科学与工程学院,云南昆明650500 |
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| 摘 要： | 采用K2S2O8/NaHSO3引发丙烯酰胺溶液聚合,探讨了抗交联剂甲酸钠对聚丙烯酰胺（PAM）的粘均分子量及絮凝性能的影响。研究结果表明：以K2S2O8/NaHSO3为引发剂,反应温度20℃,引发剂用量为0.5‰,丙烯酰胺单体浓度40%,抗交联剂用量为5ppm时,可获得最高粘均分子量达1.9×107的聚丙烯酰胺。絮凝实验结果表明：当抗交联剂用量为15ppm时,所合成的PAM的絮凝效果最好,上层液体的透光度可达95%以上。
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| 关 键 词： | 聚丙烯酰胺 抗交联剂 分子量 絮凝性能 |
The Influence of Anti- Crosslinking on Molecular Weight of Polyacrylamide and Its Flocculation Performance |
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| Institution: | DING Yi - ran ( College of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming Yunnan 650500 China) |
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| Abstract: | The polyacrylamide in this paper has been synthesized using potassium peroxydisulfate/sodium hydrogen- sulfite via free radical solution polymerization . We discuss about the influence of anti - crosslinking on molecular weight of polyacrylamide and its performance of flocculation. The results show that the molecular weight can be 1.9 ×107 when K2S2O8/NaHSO3 is used as initiator, with the initiate reaction temperature at 20, initiator dosage of 0. 5‰, monomer concentration of 40% and anti - crosslinking dosage of 5ppm. The flocculation experiment shows that when the dosage of anti -crosslinking is 15ppm, the synthesized PAM reaches the best performance of flocculation, and the transparence of the upper layer of the liquid could be more than 95%. |
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| Keywords: | polyacrylamide anti - crosslinking molecular weight performance of flocculation |
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