| 초록 |
Poly(phenylene sulfide) (PPS)/multi-walled carbon nanotube (MWNT) nanocomposites were prepared by mixing PPS with MWNT up to a content of 2 wt% by using a twin-screw extruder. The extrudates were melt-pressed to films and quenched in ice-water. The effects of the MWNT addition on the thermal and chemical properties of the PPS/MWNT films were investigated by using DSC, DMA, TGA, and synchrotron X-ray source. Although the MWNT addition did not affect the melting temperature of PPS in the films, the glass transition temperature decreased slightly with increasing MWNT content, whereas the cold crystallization temperature decreased and the melt crystallization temperature increased. New peaks or peak shifts were not observed in WAXD patterns of the films compared to pristine PPS, indicating that the crystal structure of PPS was unaffected by the MWNT addition. The chemical resistance of the films immersed in strong acid and alkaline solutions at 93 °C for 7 days was almost unaffected. |
