|About this Abstract
||2010 TMS Annual Meeting & Exhibition
||Processing Materials for Properties
||Particle Size Distribution of Natural Montmorillonite Clay Using Dispersion Analysis
||Morgan Reed, Gary Beall, David Cocke, Jewel Andrew Gomes
|On-Site Speaker (Planned)
The particle size and distribution of suspensions of clays are of considerable interest to many industrial processes including oil-well drilling, environmental abatement, polymer nanocomposites, and nanoflake catalysts. Although exploration of the interactions between montmorillonite clay with water-ethanol mixtures was studied before, particle sizing drew particle attention in the realm of nanotechnology due to particle-particle interaction and its role in distribution and sedimentation. In this study, the particle size was determined by employing a dispersion analyzer utilizing extinction and transmission profiles. The particle size distribution of montmorillonite particles, dispersed in a water-ethanol mixture, was obtained by analyzing the light transmission at a defined constant position with the measured time. This method of analysis was used for its robust accommodation of all types of suspensions with broad size distributions. The competitive behavior between ethanol and water molecules for active sites located at clay particle edges was also discussed considering particle size variation.
||Definite: A CD-only volume