| 초록 |
DGEBA-based epoxy nanocomposites filled with various amounts of fumed silica nanopowders were prepared by a solvent assisted dispersion procedure. The obtained nanocomposites were analyzed by means of differential scanning calorimetry, thermo-mechanical analysis, thermo-gravimetrical analysis. Glass transition temperature increased by adding nano fumed silica. However, coefficient of thermal expansion decreased below Tg but showed non-monotonic trends above Tg as the silica content increased. It will be discussed. |
