| 초록 |
The behavior of colloidal particles at two-dimensional (2D) interfaces is of considerable interest as a building block for bottom-up approaches with applications in stabilizers in emulsion systems (i.e. detergents, paints, inks, and cosmetic) and flocculants or coagulants in separation processes (i.e. oil recovery/oil separation, waste water treatment). Colloidal particles at fluid-fluid interfaces can also be used as a model system for investigating molecular dynamics and nanomaterials. Here, I present the interactions of various types of colloidal particles at an oil-water interface using optical laser tweezers. We also use Monte Carlo simulations to understand the relation of their interaction behaviors in microscopic and macroscopic scales. This study ultimately provides the interconnection between finding the nature of material properties on a microscopic scale and controlling the macroscopic bulk behaviors (i.e. rheology and phase behavior). |
