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Corona Discharge From Electrospinning Jet Of Poly (Ethylene Oxide) Solution, Sureeporn Tripatanasuwan, Darrell Reneker
Corona Discharge From Electrospinning Jet Of Poly (Ethylene Oxide) Solution, Sureeporn Tripatanasuwan, Darrell Reneker
Darrell Hyson Reneker
Corona discharges from electrospinning jets were observed and photographed at the tip of the Taylor cone, and in a cylindrical region around the jet, a few millimeters below the tip. The corona discharge was also faintly visible to a dark adapted eye. At the position at which the cylindrical corona discharge became apparent, typical conditions were a jet diameter of 30 μm, an applied potential of 12 kV, and a calculated radial electric field of 400 kV/cm, The calculated electric field required to create a corona in air around a metal wire of the same diameter, calculated from Peek's empirical …
Effect Of Evaporation And Solidification Of The Charged Jet In Electrospinning Of Poly (Ethylene Oxide) Aqueous Solution, Sureeporn Tripatanasuwan, Zhenxin Zhong, Darrell Reneker
Effect Of Evaporation And Solidification Of The Charged Jet In Electrospinning Of Poly (Ethylene Oxide) Aqueous Solution, Sureeporn Tripatanasuwan, Zhenxin Zhong, Darrell Reneker
Darrell Hyson Reneker
The electrospinning process uses electrical force to produce nanofibers. A charged droplet acquires a conical shape known as the Taylor cone and then becomes unstable. A charged jet emerges from the vertex and develops a spiral path due to the electrically driven bending instability, which makes it possible, in a small space, for the jet to elongate by a large amount and produce nanofibers. Evaporation and the associated solidification were identified as important factors that affect the diameter of electrospun nanofibers. In this study, the evaporation rate and solidification of the charged jet were controlled by varying the relative humidity …