Effect of current on polymer jet in electrospinning process

System and process parameters play a major role in the production of fine bead free electrospun nanofibers. in this study,the influence of the system and process parameters were observed during the production of polyvinyl butyral (pvb) nanofibers. pvb nanofibers were produced by a needle electrospinning system. the voltage and feed rate of the system was varied to observe its effect on the electric current applied to a polymer jet. it was observed that the applied voltage and flow rate utilized on the polyvinyl butyral polymer solution affected the electric current's influence on the jet regimes (e.g. stable jet,fluctuated jet and stable jet with polymer drops). nanofiber morphology showed the differences in fiber quality for each parameter. additionally,the effect of conductivity on current and various jet regimes was examined. the properties of each of the samples were compared as parameters of the spinneret were varied in each experiment. the current test was used to determine if the surface morphology of the nanofiber was beadless.