Study of electrospun nanofibre formation process and their electrostatic analysis

Abstract

Electrospinning generates nanofibres at speeds that often surpass those of conventional man-made fibre production. This makes control and manipulation of these nanofibres that much more difficult and challenging. However, to take full advantage of the superior properties of electrospun nanofibres, their production process must be clearly understood and all possible means of fibre formation and hence fibre control explored. This article attempts to explain electrospun fibre production from first principles and uses schematics to follow the electrospinning process from inception, i.e. in the nozzle, to collection with respect to electrostatic behaviours. The complex interrelationship between the charged species in the moving solution and their subsequent polarization and the induced internal field by the applied external electric field are systematically explored and explained.