| 초록 |
Graphene has been an emerging carbon nanomaterial with the potential of being used in various multifunctional, high-performance polymer applications for its outstanding performance-to-cost ratio as compared to carbon nanotubes. (Graphene is a two-dimensional, one-atom-thick planar sheet of sp2-bonded carbon atoms that are densely packed in a honeycomb crystal lattice.) This paper presents an experimental study on processing and characterization of graphene- and carbon nanotube-reinforced polymethymethacrylate (PMMA) composites. Nanocomposite films were fabricated using sonication and solution casting followed by hot pressing. The thermomechanical viscoelastic properties were characterized through dynamic mechanical analysis, and the fracture surfaces were observed under the scanning electron microscope to analyze the morphology and carbon nanomaterial dispersion. The piezoresistivity of nanocomposites was investigated, and their potential for strain sensing was demonstrated. |
