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中南大学学报(英文版)

Journal of Central South University

Vol. 24    No. 10    October 2017

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Numerical study on polymer nanofibers with electrically charged jet of viscoelastic fluid in electrospinning process
P. Valipour1, H. Zaersabet1, M. Hatami2, Ali Zolfagharian3, S.E. Ghasemi4

1. Department of Textile and Apparel, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran; 2. Department of Mechanical Engineering, Esfarayen University of Technology, Esfarayen, North Khorasan, Iran; 3. School of Engineering, Deakin University, Geelong, Victoria 3216, Australia; 4. Young Researchers and Elite Club, Sari Branch, Islamic Azad University, Sari, Iran

Abstract:Electrospinning is a useful and efficient technique to produce polymeric nanofibers. Nanofibers of polymers are electrospun by creating an electrically charged jet of polymer solution. Numerical study on non-Newtonian and viscoelastic jets of polymer nanofibers in electrospinning process is presented in this work. In particular, the effect of non-Newtonian rheology on the jet profile during the electrospinning process is examined. The governing equations of the problem are solved numerically using the Keller-Box method. The effects of yield stress and power-law index on the elongation, velocity, stress and total force are presented and discussed in detail. The results show that by increasing the values of yield stress, the fluid elongation is reduced significantly.

 

Key words: nanofibers; electrospinning; electrically charged jet; viscoelastic fluid; synthetic polymers

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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