Effect of "stagnation plane" in the electric field during the electrospinning process

Abstract

Recent experiments demonstrated that the essential electrospinning mechanism is a rapidly whipping dielectric liquid jet in an electric field. There are generally two main methods to control the jet, one is to control the solution and the other is to control the flight of the electrospinning jet through manipulation of the electric field. In this paper, a modified electric field distribution, providing a stagnation surface, is discussed in order to know the effect on the electrospinning jet. The results illustrate that if the bending starting point happened below the stagnation point, the jet movement could be random to any direction as no electric force on the jet at the stagnation point and if the bending starting point happened before the jet reached the stagnation point, the jet movement could be bending as the modified jet path. The results also show that the modified electric field distributions could change the jet path and control the fiber morphology.