| 聚丙烯酰胺与高价金属离子交联机理研究 |
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| 引用本文： | 王任芳,李克华.聚丙烯酰胺与高价金属离子交联机理研究[J].石油天然气学报,1999,21(2):38-40. |
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| 作者姓名： | 王任芳 李克华 |
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| 作者单位： | 江汉石油学院化学工程系,湖北,荆州,434102 |
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| 摘 要： | 对聚丙烯酰胺与高价金属离子（Ｃｒ（Ⅲ）或Ｚｒ（Ｚｒ（Ⅳ））的交联机理进行了实验研究。结果表明，ＰＡＭ水解度对成冻有着重要的影响：非水解ＰＡＭ不能与Ｃｒ（Ⅲ）或Ｚｒ（Ⅳ）形成冻胶；水解度太大的ＰＡＭ则容易产生沉淀；ＰＡＭ与Ｃｒ（Ⅲ）或Ｚｒ（Ⅳ）的交联特征几乎一样，只是它们成冻时对ＰＡＭ水解度大小的要求不同的要求不面而己。
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| 关 键 词： | 聚合物 (聚丙烯酰胺) 金属离子 交联反应 凝胶 堵水剂 机理 |
| 修稿时间： | 1998-10-05 |
Crosslinking Mechanism of Polyacrylamide with Multivalent Ions |
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| WANG Ren-fang,LI Ke-hua.Crosslinking Mechanism of Polyacrylamide with Multivalent Ions[J].Journal of Oil and Gas Technology,1999,21(2):38-40. |
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| Authors: | WANG Ren-fang LI Ke-hua |
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| Abstract: | The crosslinking mechanism of polyacrylamide (PAM) with multivalent ions (Cr() and Zr()) is studied.The study results demonstrate that the hydrolysis level of PAM is a key factor affecting gelation.No gel is formed at a too high or too low hydrolysis level of PAM.The crosslinking characteristics of PAM with Zr() is almost the same as that of PAM with Cr().Therefore,the crosslinking of PAM with multivalent ions is accomplished only through its carboxyl groups. |
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| Keywords: | polymer (polyacrylamide) metallic ion crosslinking gel water shutoff agent mechanism |
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