In situ ion induced gelation of colloidal dispersion of Laponite: Relating microscopic interactions to macroscopic behavior

详细信息    查看全文

• 作者：Rashmi P. Mohanty ; Khushboo Suman ; Yogesh M. Joshi ; ^{joshi@iitk.ac.in}
• 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.