| 초록 |
Cellulose nanofibril (CNF), a bio-degradable fibrous nanomaterial extracted from the wood, has attracted attentions for application as a reinforcement filler for polymer composites because of its physical properties comparable to glass or carbon fiber. However, its hydrophilic and thermally unstable natures become a hurdle in dispersion in hydrophobic polymer for a high temperature melt-mixing process. In this study, CNF was modified with inorganic materials that decorate the CNF surface as a form of bead, overcoming those issues. In addition, its surface was chemically modified for enhancing compatibility to polymer matrix. The surface-modified CNF was imaged using scanning electron microscope (SEM) or transmission electron microscope (TEM). Mechanical and rheological properties of the polymer composites was analyzed in terms of inorganic material content, filler content, and so on using UTM and rheometer according to ASTM standards. |
