Vibration and Heat Effect on Electrospinning Modeling

Abstract

Weakness of electrospun nanofiber has impeded its industrial applications for a long period. Our studies reveal a promising solution to this problem by applying ultrasonic vibration to the polymer solutions during electrospinning. To well understand and control of this new technology, a mathematical model is much needed. During the vibration, heat and vibration induced by the ultrasonic energy will not only affect the rheological properties of the polymer solution and the energy balance of the electrospinning system, but play an important role on the current generated in the charged jet. Taking consideration of such impacts of ultrasonic vibration, governing equations for current, momentum and energy are derived, and a simplified model is also provided for practical applications.

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“…This aids in improving spinnability and produces more ultrathin fibers than the other electrospinning techniques without vibration (Si, Xu, Wang, & Liu, 2014). Wan, Qiang, Yang, Cao, and Wang (2014) reported a study on the effect of polymer concentration and viscosity on electrospinning of fibers. Results inferred that even a highly concentrated polymer solution with less flowability could be spun easily into nanofibers using vibration electrospinning.…”