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| 驱油用聚丙烯酰胺溶液界面特性研究 | |
| 引用本文： | 窦立霞,曹绪龙,江小芳,崔晓红,刘异男. 驱油用聚丙烯酰胺溶液界面特性研究[J]. 胶体与聚合物, 2004, 22(2): 14-16 |
| 作者姓名： | 窦立霞 曹绪龙 江小芳 崔晓红 刘异男 |
| 作者单位： | 1. 山东大学环境科学与工程学院,山东济南,250000;中石化胜利油田有限公司地质科学研究院,山东东营,257015 2. 中国科学院兰州化学物理研究所,甘肃兰州,730000;中石化胜利油田有限公司地质科学研究院,山东东营,257015 3. 中石化胜利油田有限公司地质科学研究院,山东东营,257015 |
| 摘 要： | 使用 TRACKR全自动液滴界面张力仪测量了不同试验条件下十二烷 /聚丙烯酰胺溶液界面扩大、缩小时的流变特征及界面张力 ,开发出了用以表征液膜强度的界面黏弹性 E的测量方法。在十二烷 /聚丙烯酰胺界面形成稳定的过程中界面 (扩张 )黏弹模量不断增加 ,并逐渐达到恒定 ,其中弹性成分所占比例远大于黏性成分即 E′>E″。考察的聚合物浓度范围为 5 0～ 2 0 0 0 mg/ L ,界面黏弹模量从 1 7.6提高到 3 0 .6m N·m-1。放置 3 d后的聚合物溶液界面黏弹模量保留率为 82 .8%。实验结果表明聚合物浓度变化对界面张力影响不显著。 |
| 关 键 词： | 聚丙烯酰胺 界面性质 界面扩张流变 界面黏弹模量 |
| 修稿时间： | 2003-09-15 |
Study on Interfacial Characteristics of Polyacrylamide Solutions |
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| Dou Lixia , Cao Xulong , Jiang Xiaofang Cui Xiaohong. Study on Interfacial Characteristics of Polyacrylamide Solutions[J]. Chinese Journal of Colloid and Polymer, 2004, 22(2): 14-16 | |
| Authors: | Dou Lixia Cao Xulong Jiang Xiaofang Cui Xiaohong |
| Affiliation: | Dou Lixia 1,2 Cao Xulong 2,3 Jiang Xiaofang 3 Cui Xiaohong 3 |
| Abstract: | Using the TRACKER fully automated drop tensiometer to the interfacial rheology in dilatation or contraction of dodecane/polyacrylamide solutions,in different experimental conditions. A measurement of the interfacial visco-elastic modulus as a token of the membranes' intensity is founded. During the process of the dodecane/polyacrylamide interface balance, the interfacial visco-elastic modulus increases with increasing time and come to the equation. The elastic component is higher than the viscous component. The interfacial visco-elastic modulus increases with increasing concentration of the polyacrylamide. After aging of the polyacrylamide solutions, The interfacial visco-elastic modulus decreases.The interfacial tension does not chang with polyacrylamide concentration. |
| Keywords: | Polyacrylamide Interfacial Characteristics Interfacial dilational rheology Interfacial visco-elastic modulus |
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