Effect of nozzle polarity and connection on electrospinning of polyacrylonitrile nanofibers

Ali, Usman, Wang, Xungai and Lin, Tong 2012, Effect of nozzle polarity and connection on electrospinning of polyacrylonitrile nanofibers, Journal of the textile institute, vol. 103, no. 11, pp. 1160-1168.

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Title Effect of nozzle polarity and connection on electrospinning of polyacrylonitrile nanofibers
Author(s) Ali, Usman
Wang, Xungai
Lin, Tong
Journal name Journal of the textile institute
Volume number 103
Issue number 11
Start page 1160
End page 1168
Total pages 9
Publisher Routledge
Place of publication Abingdon, England
Publication date 2012-11
ISSN 0040-5000
1754-2340
Keyword(s) electrospinning
electrode connection
deposition area
finite element modeling
Summary In this study, two power supplies having positive/ground and negative/ground electrode output ends were used separately for electrospinning of polyacrylonitrile nanofibers. Depending on type of power supply and electrode connection, electrospinning led to different fiber diameters and deposition areas. The nozzle was connected to a high voltage end while the collector was grounded. Regardless of power supply used, finer fibers with a larger deposition area were obtained, compared to that using the same setup but with a reverse electrode connection. With an increase in the applied voltage, fiber deposition area, and productivity increased for all electrode connections. Grounded nozzles provide much better control over fiber deposition than the reverse electrode connections. Finite element modeling was used to analyze the electric field profile in the electrospinning zone. It was revealed that high electric intensity was mainly located in the part that was charged with a high voltage electrode, which could explain the differences in fiber diameter and deposition area.
Language eng
Field of Research 091205 Functional Materials
091209 Polymers and Plastics
Socio Economic Objective 860406 Synthetic Fibres, Yarns and Fabrics
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2012, Taylor & Francis
Persistent URL http://hdl.handle.net/10536/DRO/DU:30049633

Document type: Journal Article
Collection: Institute for Frontier Materials
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