| 초록 |
Electrospinning is a process that produces continuous polymer fibers with diameters in the sub-micron range through the action of an external electric field imposed on a polymer solution or melt. While the process of electrospinnig has been known for over half century, current understanding of the process and those parameters, which influence the properties of the fibers produced from it, is very limited. In this work, we have evaluated systematically the effects of three of the most important processing parameters: spinning voltage, flow rate and solution concentration, on the morphology of the polycaprolactone fibers formed. We find that spinning voltage and flow rate are strongly correlated with the formation of bead defects in the fibers. Solution concentration has been found to most strongly affect fiber size, with fiber diameter increasing with increasing solution concentration. |
