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Full-Text Articles in Engineering
Microstructure And Rheology Of Carbon Nanotubes At Air-Water Interfaces, Charles D. Young
Microstructure And Rheology Of Carbon Nanotubes At Air-Water Interfaces, Charles D. Young
Honors Scholar Theses
This work characterizes the material properties of carbon nanotubes at air-water interfaces for potential use in creating stable emulsions. Properties such as length, aspect ratio, contact angle, microstructural ordering, surface pressure, compression and shear elastic moduli, stresses, surface viscosities and non-linearity are explored. Challenges such as deviation from a classical analysis of monolayers are encountered in the form of aggregation, mechanical contributions, and interface relaxation. These factors are taken into account to explain experimental measurements and trends. Ultimately, existing models for more homogeneous systems are resolved with observations to offer insight and areas of promise moving forward.
Membrane Compatibility With Switchable Polarity Draw Solutions For Use In Forward Osmosis Applications, Benjamin Joseph Coscia
Membrane Compatibility With Switchable Polarity Draw Solutions For Use In Forward Osmosis Applications, Benjamin Joseph Coscia
Honors Scholar Theses
Water scarcity is problem being faced worldwide and present in every continent. Close to one-fifth of the world’s population has difficulty acquiring safe water, and the problem is worsening as populations continue to grow in poorer countries. As the availability of unimpaired freshwater sources dwindle, water sources, such as the oceans and saline ground waters, must be tapped. However, desalination technologies are very expensive due to a high energy requirement. Forward osmosis (FO) is a process which may be able to replace or become integrated with existing desalination technologies like reverse osmosis. FO relies on an osmotic agent, or draw …