| 초록 |
CNT fiber is lighter but stronger and more conductive than carbon fiber, so many researches are being conducted to develop it as a next-generation fiber material. In this work, we will present an overview of CNT fiber and researches on synthesis of CNT fiber in Korea Institute of Materials Science, improving interfacial shear strength through post-treatment, fabrication method of composite material, and characteristics of the CNT fiber-reinforced plastic. Linear density of the CNT fibers prepared in this work increased by 30 times compared to conventional CNT fibers. Interfacial shear strength between CNT fibers and epoxy matrix was doubled when amine groups were introduced on the surface of CNT fibers. We finally prepared the centimeter-sized CNT fibers reinforced plastic based on the CNT fibers with large-tex. Moreover, we also report other functional applications including wearable supercapacitor, fiber-type batteries, and EMI shielding film based on CNT fibers. |
