| 초록 |
As interest in the development of fiber-reinforced nanocomposites containing biomass increases, study on biomass-based engineering plastics is being conducted as a new direction for the industry. In this study, polycarbonate (PC) is selected as a matrix polymer and cellulose nanofiber (CNF) extracted from wood is added to prepare nanocomposites. Due to high mechanical properties of CNF compared with glass or carbon fiber, the composites are expected to strengthen PC. However, CNF exhibited poor dispersion in the PC matrix and experienced thermal oxidation while compounding it with PC at a high temperature. To overcome these problems silica nanoparticles were forming on the CNF surface by a sol-gel method. Thermal, Mechanical, and rheological properties of the CNF/PC composite were measured in terms of silica and CNF contents. |
