Chiang Mai Journal of Science

Print ISSN: 0125-2526 | eISSN : 2465-3845

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Effect of Solvent and Processing Parameters on Electrospun Polyvinylpyrrolidone Ultra-fine Fibers

Thammasit Vongsetskul, Thanaphorn Chantarodsakun, Preeyaphorn Wongsomboon, Ratth Rangk
* Author for corresponding; e-mail address: thammasit.von@mahidol.ac.th
Volume: Vol.42 No.2 (APRIL 2015)
Research Article
DOI:
Received: 4 March 2013, Revised: -, Accepted: 20 October 2014, Published: -

Citation: Vongsetskul T., Chantarodsakun T., Wongsomboon P. and Rangk R., Effect of Solvent and Processing Parameters on Electrospun Polyvinylpyrrolidone Ultra-fine Fibers, Chiang Mai Journal of Science, 2015; 42(2): 436-442.

Abstract

         Electrospun polyvinylpyrrolidone (PVP) (MW ~ 1.3 x 106 g/mol) ultra-fine fibers        with diameters from 200 to 1400 nm were successfully fabricated from the 20 %w/w PVP        in the mixtures of ethanol and water. The effects of solvent compositions, the applied voltages (10, 12, 14 and 16 kV) and the electrical polarities (both negative and positive) on their diameters and morphology were investigated. Scanning electron micrographs revealed that, to obtain neat fibers with small diameters, the positive polarity and high potential should be applied. In addition, the fiber diameter increased with increasing the amount of ethanol.

Keywords: electrospinning, ethanol, fiber, polyvinylpyrrolidone, water

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