| 초록 |
Carbon fibers (CFs) have been extensively used as reinforcing components for high performance composite materials, because of their high tensile strength, good creep resistance, low density, high modulus, good chemical resistance, high thermal stability, etc. In this study, we have manufactured CFs from an aromatic polyamide fiber, poly(2-cyano-1,4-phenylene terephthalate), as a new polymeric precursor and have investigated their structures, thermal, mechanical and electrical properties in aspects of iodization, stabilization, and carbonization conditions. The iodine treatment of the precursor fiber was carried out at 65 °C for 15 hrs. FT-IR and EDS data revealed that iodine was uniformly treated at the surface of the precursor fiber. TGA data confirmed that the iodine treatment leads to improved stabilization and residue at high temperatures. The tensile mechanical properties of the CFs manufactured from as-spun and iodine-treated precursor fibers were also compared and discussed. |
