Experimental Verification of Scaling Law between Current and Applied Voltage in Electrospinning

various nanostructures. Electrospun nanofibres have a wide range of potential applications in many fields, such as air filtration, water filtration, biomedicine, catalyst supports, drug delivery, tissue engineering, nanowires, just say few. This experiment shows that operating parameters affect much morphology and mechanical character of electrospun nanofibres. This paper studies theoretically and experimentally the scaling relationship between two main operating parameters-current and applied voltage. Polyacrylonitrile (PAN) nanofibres are prepared by electrospinning of 12 wt% and 18 wt% PAN/DMF solution. In our experiment the volume flow rate keeps unchanged during the electrospinning process, and the voltage varies from 10 kV to 50 kV. The non-linear relationship between current and applied voltage is obtained by an allometrical approach. The theoretical prediction agrees very well with experimental data. Yu-Qin Wan, Ji-Huan He, and Jian-Yong Yu