| 疏水改性聚丙烯酰胺的制备及其对难沉降尾矿的絮凝性能研究 |
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| 引用本文： | 王红,朱丽娜,孙彦琳.疏水改性聚丙烯酰胺的制备及其对难沉降尾矿的絮凝性能研究[J].昆明理工大学学报(理工版),2013(5):101-105. |
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| 作者姓名： | 王红 朱丽娜 孙彦琳 |
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| 作者单位： | [1]昆明理工大学理学院,云南昆明650500 [2]昆明理工大学化学工程学院,云南昆明650500 |
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| 基金项目： | 国家自然科学基金（51163009）;云南省自然科学基金（2009CD031）. |
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| 摘 要： | 摘要：采用水溶液共聚法，以甲基丙烯酸甲酯和丙烯酸丁酯为疏水单体，以K2S20。一NaHs03氧化还原体系为引发剂，制备了疏水改性型聚丙烯酰胺，探讨了改性单体用量对改性聚丙烯酰胺的分子量、不溶物含量、溶解速率等性能的影响规律，并对其在两种难沉降尾矿中的絮凝效果进行了评价．研究结果表明：疏水改性聚丙烯酰胺对不同类型的难沉降尾矿浆表现出不同的絮凝效果．
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| 关 键 词： | 聚丙烯酰胺 疏水改性 絮凝性能 尾矿浆 |
Flocculation Properties of Hydrophobically Modified Polyacrylamides for Tailing Slurry with Difficult Sedimentation |
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| WANG Hong,ZHU Li-na,SUN Yan-lin.Flocculation Properties of Hydrophobically Modified Polyacrylamides for Tailing Slurry with Difficult Sedimentation[J].Journal of Kunming University of Science and Technology(Natural Science Edition),2013(5):101-105. |
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| Authors: | WANG Hong ZHU Li-na SUN Yan-lin |
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| Affiliation: | 1. Faculty of Science, Kunming University of Science and Technology, Kunming 650500, China; 2. Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming 650500, China) |
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| Abstract: | The hydrophobically modified polyacrylamides （PAM） are prepared by water solution free radical co- polymerization, which uses butyl acrylate （BA） and methyl methacrylate （MMA） as hydrophobic monomers, and K2S2Os--NaHSO3 as initiators. The influences of hydrophobic monomer content on the molecular weight, in- soluble fraction and dissolution rate of PAM are investigated. The flocculation effects of PAMs for two kinds of tailing slurry with difficult sedimentation feature are also evaluated. The resuhs show that different flocculation properties of hydrophobically modified PAMs can be obtained according to different kinds of tailing slurry. |
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| Keywords: | polyacrylamide hydrophobically modification flocculation property tailing slurry |
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