Investigating and modeling the effect of magnetic field shape on electrospinning process

Document Type : Research/ Original/ Regular Article

Authors

1 PhD Student/Yazd University

2 Associate Professor ,Yazd University

3 Associate Professor

Abstract

The magnetic field changes the direction of the moving charged particles. Thus, the magnetic field can be used as an external force to control the movement direction of the polymer jet in the electrospinning process. In this study, a piece of magnetic equipment, including a frame with several magnets, was used to control the electrospun polymer jet stability. Numerical modeling of the electric and magnetic fields and experimental observations showed that the magnetic equipment creates the magnetic field and affects the movement direction of the charged jet, and the electric field. The use of magnetic equipment caused a 20% increase in the intensity of the electric field at the tip of the needle and a 10% increase in the electric field towards the edges of the equipment and evenness of the field within the magnetic equipment range. Changes in the electric field increase the energy applied to the fibers and thereby reduce the area of the nanofibrous web by 80%. The highest deformation and the most extensive area of the web area were obtained using a pair of magnets that were placed symmetrically along a common axis on both sides of the electrospinning needle.

Keywords

References

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History

  • Receive Date: 27 June 2019
  • Revise Date: 30 July 2019
  • Accept Date: 08 September 2019

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