Department of Physics

Physics Colloquium


DATE:           Monday, February 16, 2015
TIME:           12:20 pm - 1:35 pm
LOCATION:   301 Campbell Hall

"AC Electrospinning - Emitter of Nanofibers"

Professor David Lukas
Faculty of Textile Engineering
Technical University of Liberac, Czech Republic

Abstract

AC electrospinning combined with an appropriately shaped needleless spinning electrode is highly productive in generating a plume of nanofibers. Based on speed-camera videos, we have shown that the efficiency of this method is warranted by the creation of a virtual counter-electrode composed from oppositely charged nanofibers. This virtual counter-electrode composed of a cloud of nanofibers is formed periodically in each successive half-wave of the AC cycle. The AC needleless electrospinning method has the potential for production of nanofiber based yarns.