Relationship between Electrospinning Parameters and Physical Properties of Tubular Structure Nanofibers by Opposite Charge Electrospinning .

Opposite charge electrospinning; Tubular structure; Mean Surface Area; Alignment; Flow rate ; Applied voltage, Porosity %

Authors

  • Salih Abbas Habeeb Department of Polymer and Petrochemical Industries Engineering College of Materials Engineering, University of Babylon, Al- Hilla –51001, Iraq
  • Laleh Rajabi Polymer Research Lab., Faculty of Petroleum and Chemical Engineering, Razi University, Kermanshah, Iran.
  • Farzad Dabirian Department of Textile Engineering, Faculty of Engineering, Razi University, Kermanshah, Iran.
April 26, 2023
April 29, 2023

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This study describes the opposite charge electrospun method for preparation of  polyacrilonitrile / DMF nanofibrous tubular structure . Constant a processing parameters such as high polymer concentration and high  rotational speed mandrel collector with varied the applied voltage and  flow rate in wide range to display the effect of each one in determining the diameter , alignment, porosity, mean surface area and mean pores size  of nanofibers. Tubular structures were produced from highly aligned continuous and uniform nanofibers through the opposite charge electrospinning methods and effect of each regulating parameter on tubular structure properties  were evaluated and characterized using scanning electron microscope (SEM) and  Fast Fourier Transform (FFT) and thresholding method. Increasing flow rate of  polymer solution considerably increased the diameter of the nanofibers  , ranges of the average diameters were larger , the nanofibers diameter distribution were gradually border. Nanofibers diameter on the other hand, decreased as the applied voltage  increased, ranges of the average diameters were smaller  and  the nanofibers diameter distribution were gradually narrower . while increased the porosity % , heights intensity(Y%)  and  mean surface area (nm2) and decreased the mean pores size (nm) with increased both the applied voltage and flow rate of polymer solution .