ESa

 

 

 

In this method high voltage is applied between a needle and a collector, resulting in electric charging of a fluid. Formation of a jet occurs under complex interactions of various forces. When the molecular cohesion of a liquid is relatively high, continuous jet is formed, otherwise droplets are electrosprayed. Various instabilities occur on the way of the flowing jet, resulting in very high draw ratios. All fibres are deposited on the collector.