| 초록 |
In typical Pickering emulsion systems, particles are accumulated between two immiscible liquids and induce formation of a robust colloidal monolayer at the liquid-liquid interface. However, if particles are smaller than tens of nanometers, they readily come off the interface, resulting in drop coalescence. To solve this, we need to develop a technique that can make the adsorbed nanoparticles stay at the interface. In this study, we introduce a practical method that allows us to obtain a mechanically stable Pickering emulsions. For this, we prepare a Pickering emulsion whose interface consists of silica nanoparticles and polymer binders. Then, the interface is chemically glued with a coupling agent, thus forming mechanically stable Pickering emulsions. Finally, we demonstrate that our Pickering emulsions have excellent suspension stability against environmental factors by examining suspension rheology. |
