二元复合驱体系中钠型蒙脱土的表面电性质  

Surface electric properties of Na-montmorillonite in binary combination flooding

作　　者：王慧云 李明远[1] 刘愉平[2] 吴肇亮[1] 林梅钦[1] 董朝霞[1] 

机构地区：[1]中国石油大学化学化工学院 [2]华北石油管理局,河北廊坊065007

出　　处：《石油大学学报（自然科学版）》2005年第4期111-114,共4页Journal of the University of Petroleum,China(Edition of Natural Science)

基　　金：国家重点基础研究专项经费资助项目(G1999022505)

摘　　要：利用电势分析仪分析了石油磺酸盐及部分水解聚丙烯酰胺(HPAM)对钠型蒙脱土ζ电势的影响,采用X射线衍射(XRD)测定了钠型蒙脱土于石油磺酸盐、HPAM溶液中结构的变化。结果表明,石油磺酸盐、HPAM均能使钠型蒙脱土的ζ电势变得更负,而且使钠型蒙脱土的XRD峰发生明显的变化,说明HPAM和石油磺酸盐不仅可以吸附到蒙脱土的表面,而且可以吸附到蒙脱土的层间结构中。The influences of petroleum sulfonate and partially hydrolyzed polyacrylamide（HPAM） on the zeta potential and structure of Na-montmorillonite were investigated by zeta potential analysis and X-ray diffraction（XRD） of Na-montmorillonite under different conditions. The results show that petroleum sulfonate and HPAM make the zeta potential of Namontmorillonite become more negative and the XRD peak of Na-montmorillonite change obviously. All these indicate that petroleum sulfonate and HPAM can not only adsorb on the surface but also can adsorb at the internal and interlayer of montmorillonite.

关 键 词：钠型蒙脱土 ζ电势 部分水解聚丙烯酰胺 石油磺酸盐 复合驱 

分 类 号：O648.14[理学—物理化学]