| 초록 |
Graphene, a single-layer of graphite, has attracted significant interests as one of the most attractive and potential materials in recent years due to its tremendously large surface area and extraordinarily high electrical, thermal and mechanical properties. Conducting polymer, polyaniline (PANI) has been synthesized in the presence of graphene oxide (GO), which was prepared via a modified Hummers method. The conducting polymer/inorganic (PANI/GO) nanocomposite was obtained via an in-situ dispersion polymerization process. The morphology and composition were characterized by scanning electron microscopy, transmission electron microscopy and Raman shift. Furthermore, the nanocomposite was examined as an electrorheological (ER) material when dispersed in silicone oil. Its fibrillation phenomenon was observed via an optical microscope in an external electric field. Meanwhile, rheological performance of the ER fluid was tested by a rotational rheometer in various electric field strengths. |
