In situ ion induced gelation of colloidal dispersion of Laponite: Relating microscopic interactions to macroscopic behavior
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- 作者：Rashmi P. Mohanty ; Khushboo Suman ; Yogesh M. Joshi<sup> ; sup><sup>joshi@iitk.ac.insup>
- 关键词：Clay dispersion ; Laponite dispersion ; Rheology ; DLVO theory ; Inter-particle interactions
- 刊名：Applied Clay Science
- 出版年：2017
- 出版时间：15 March 2017
- 年：2017
- 卷：138
- 期：Complete
- 页码：17-24
- 全文大小：1005 K
- 卷排序：138
文摘
Laponite dispersion is preserved under CO2 and air environment. CO2 causes Mg+ 2 ions to leach out of Laponite changing the ionic concentration. Effect of ionic concentration on inter-particle interactions is studied. DLVO analysis for the maximum repulsive interactions is performed. The macroscopic rheological phenomena are related to the microscopic interactions.