| 초록 |
In the electrospinning process, polymer nanofibers with submicron-scale diameters are formed when a droplet of a viscoelastic polymer solution is subjected to a high voltage electrostatic field. Morphology of the nanofibers are influenced by parameters such as concentration, voltage, flow rate, distances, temperature and humidity. Optimum condition of all the parameters can provide uniform nanofibers with minimal bead densities. Solvent is one of the key factors to affect the morphology of nanofibers. In this study, we focused on electrospinning of polycarbonate fiber using various solvent such as dimethylformamide (DMF), tetrahydrofuran (THF), methylene chloride and formic acid to produce pores on the surfaces. The microstructures of the electrospun polycarbonate fibers obtained were examined by using scanning electron microscope (SEM). |
