| 초록 |
Carbon black(CB) is functionalized via direct fluorination according to different partial pressure of fluorine and CB/epoxy composites are prepared. The surface properties and dispersion of untreated and fluorinated CB are investigated by X-ray photoelectron spectroscopy (XPS) and UV-spectroscopy, respectively. Then, physical properties of CB/epoxy are conducted via tensile, impact test and thermal creep behavior. As the results, the tensile strength of fluorinated CB/epoxy composites were improved by maximum 33% increase than that of untreated CB/epoxy composites. Also, the thermal creep behavior of fluorinated CB/epoxy composite is remarkably enhanced. These results are attributed to improvement of dispersion of CB and adhesion of it with epoxy resin, which result from developed functional groups containing fluorine by direct fluorination of CB. |
