Electrospinning is a new and innovative low cost process that allows the easy and fast deposition of nanostructured materials onto any surface. In the process of electrospinning, the applied voltage causes a cone-shaped deformation of the drop of polymer solution (Taylor cone – figure 1). The electrified jet elongates and moved towards the collector, the solvent evaporates, inducing the formation of nonwoven nanostructured dense web of nanofibers (figure 2). Nanofibers can be prepared from various polymers, blends, composites, ceramics, etc. Co-axial electrospinning offers the possibility to produce core-shell nanofibers using a co-axial emitter (figure 3). These consist of an inner and outer layer, which can be tailored for a wide range of applications and their needs.
Figure 1: Taylor cone
Figure 2: Electrospun nanofibers
Figure 3: Co-axial emitter