Fig. 4From: Electrospun Jets Number and Nanofiber Morphology Effected by Voltage Value: Numerical Simulation and Experimental VerificationThe morphology of PVDF-HFP nanofiber under different voltage value a 6 kV, b 10 kV, c 15 kV, d 20 kV, e 25 kV, and f 30 kV (the scale bar is 600 nm)Back to article page