Electric field simulaition and stretching process analysis of double-nozzle electrospinning with auxiliary electrodes

During double-nozzle electrospinning,the two jets with electrical charge of the same nature expel each other and thus bend outward because adjacent electric fields interfere with each other.Therefore,the continuity of electrospinning process and the evenness of fiber web decrease.This paper focuses on double-nozzle electrospinning device,and installs a cylindrical auxiliary electrode at each of the two nozzles to minimize the interference from adjacent electric fields.The experimental results reveal that the double-nozzle electrospinning equipped with the auxiliary electrodes lends itself good continuous spinning jets with even fiber web and finer fiber diameters.Ansoft Maxwell 3-D electromagnetic field analysis software is used to simulate the electrospinning electric fields and the force acting on the jets so that the electric field shielding effect of the auxiliary electrodes is further elucidated.