| 초록 |
Porous films and composite films based on cellulose matrix are of large interest to diverse fields such as ion exchange, insulation, separation, sensing, packaging and catalysis. We report two new classes of such films based on Microfibrillated Cellulose (MFC). MFC is a material composed of micron-length cellulose fibrils with a high aspect ratio. It is biodegradeable, biocompatible, and inert, and has very large specific surface area, high tensile strength and elasticity. First of all, we will describe hierarchical macroporous cellulosic films, deposited at room temperature by drying of oil/water emulsions stabilized by MFC and surfactants. Secondly, by incorporating inorganic particles in the films, bio-nanocomposite films with stiff, smooth and hydrophobic surface are obtained. Very high weight percent of micron size cubic shape particles from calcium carbonate are successfully incorporated into MFC network. The properties of MFC-based films are characterized by a variety of ways. |
