| 초록 |
The effect of oxygen plasma treatments on surface properties of SiC was investigated in mechanical interfacial properties of SiC/PMMA nanocomposites. As experimental results, FT-IR of the SiC showed that the carboxyl/ester groups (C=O) at 1632 cm-1 and hydroxyl group (O-H) at 3450 cm-1 were observed in the plasma treated SiC and the plasma treated SiC had a higher O-H peak intensity than that of the untreated ones. The XPS results also indicated that the O1S/C1S ratio of the SiC surfaces treated by the oxygen plasma was increased compared to that of untreated ones, possibly due to the development of oxygen-containing functional groups. The mechanical interfacial properties of the SiC/PMMA composites, including ILSS and KIC, had been improved in the oxygen plasma treatment on SiC. |
