Fiber Formation Model for PVP (polyvinyl pyrrolidone) Electrospinning. I. Critical Voltage

초록

The major concern in electrospinning process is the occurrence of jet formation. In order to study the physical properties of the solution and process parameters, critical voltage models in electrospinning are presented. Critical voltage models are developed to predict the onset of electrospinning. Rayleigh's instability phenomena at the moment of droplet shape change, Zeleny's research for relationship between surface tension and electric field, and Taylor's critical voltage model are the theoretical backgrounds of this proposition. SIC 1, SIC 2, GSP models are suggested to calculate the critical voltage according to the shapes of polymer drop. This newly developed critical voltage model for polymer jet during electrospinning could predict other processing parameters, such as, TCD, radius and length of nozzle, and is verified by comparing experimental values using polyvinyl pyrrolidone (PVP) solution through electrospinning.

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