| 초록 |
Recently, carbon nanotube(CNT)-filled nanofibrous membranes have been produced by electrospinning to improve their performance characteristics. Although the nanofibrous membranes showed a significant enhancement in their mechanical properties, their electrical properties were inferior to those of typical semiconductors or conductors. In this study, we demonstrate a new and simple processing route which can be used to incorporate CNTs into a polymer matrix by adsorption. The CNTs were adsorbed on the surface of nanofibers electrospun from an aqueous solution of silk fibroin with poly(ethylene oxide) by dip-coating the nanofibrous membranes in a bath containing CNT dispersion. The dispersion of the CNTs was prepared by the sonication of the CNTs in an water containing a surfactant. The CNT adsorbed membranes not only have good electrical properties (~10-4 S/cm), but also retain the inherent characteristics of the nanofibrous membranes, such as their high porosity and flexibility. |
