| 초록 |
Nanostructured epoxy composites including clays, POSS, and carbon nanotubes have attracted considerable attention in recent years due to improvements of abrasion resistance, heat stability, and mechanical properties. Recently, graphene has been used in many engineering applications due to its excellent mechanical, thermal, and electrical properties. In the present work, we have manufactured epoxy based-nanocomposite films by using a simple and efficient UV-curing process. For the UV-curing process, we have used bis-cycloaliphatic diepoxy monomer and sulfonium salt as a cationic photoinitiator. Structures and morphological features of epoxy/graphene nanocomposite films are characterized by using SEM, TEM, and X-ray diffraction method. Mechanical modulus, thermal stability, and electrical resistivity of the UV-cured nanocomposite films were investigated as a function of graphene content by using an universal tensile machine, thermo-gravimetric analyzer, and ohmmeter, respectively. |
