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초록

Carbon nanotubes (CNTs) possess remarkable electrical and mechanical properties coupled with good chemical stability due to unique nanostructures.1-3 Thus, polymer composites reinforced with CNTs are considered to have many engineering potentials, ranging from battery electrodes and electronic devices to much stronger composites. Since the CNTs are extremely flexible and show high aspect ratio as filaments, it is extremely difficult to align and disperse the CNTs by using the ordinary composite fabrication methods. CNTs generally form stabilized bundles due to van der Waals force, resulting in the formation of hollow ropes. Obtaining a good dispersion of CNTs is known to be one of the key issues in using CNTs in composites.4 Electrospinning is a fast and simple process driven by the electrical forces on the surface of the polymeric fluids, producing polymer filaments using an electrostatic force.5,6 This electrospinning technique can serve various purposes, such as fine control of the fiber diameters, production of defect-free or defect-controllable fiber surface, and continuous single nanofibers