| 초록 |
Thermotropic polyarylates (PARs) have recently attracted great attention as high-performance engineering plastics owing to their excellent mechanical strength and heat resistance. Polycarbonate (PC) is a thermoplastic with high thermal stability and impact strength. In this study, to attain advanced polymer composites with superior long-term mechanical durability and high EMI shielding performance, a series of PAR/PC blend-based nanocomposites with multiwalled carbon nanotube (MWCNT) are fabricated via efficient masterbatch-based melt-compounding. The morphological and microstructural features of the nanocomposites are characterized using SEM, FT-IR, and XRD. The thermal features, rheological, mechanical, electrical, and EMI shielding properties of the nanocomposites are investigated using DSC, TGA, rheometer, DMA, electrometer, and network analyzer, respectively. In particular, the long-term mechanical durability of the nanocomposites is evaluated using a stepped isothermal method. |
