Paper Information

Journal:   IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE)   WINTER 2012 , Volume 31 , Number 4 (64); Page(s) 49 To 58.
 
Paper: 

USING A RANGE OF PVB SPINNING SOLUTION TO ACQUIRE DIVERSE MORPHOLOGY FOR ELECTROSPUN NANOFIBRES

 
 
Author(s):  YENER FATMA*, JIRSAK OLDRICH, GEMCI REMZI
 
* NONWOVEN DEPARTMENT, TEXTILE ENGINEERING FACULTY, TECHNICAL UNIVERSITY OF LIBEREC, STUDENTSKA 2, 46117, LIBEREC, CZECH REPUBLIC
 
Abstract: 

Morphological changes in Polyvinyl Butyral (PVB) electrospun nanofibres can be acquired by preparation of PVB spinning solution in different solvents. Accordingly, three solvents, including ethyl alcohol, n-butanol and isopropanol, with diverse physical properties (e.g. boiling point, density, dipole moment and dielectric constant) were used to prepare Poly Vinyl Butyral (PVB) spinning solution. The PVB polymer was used in two ranges of molecular weight. Scanning Electron Microscopy (SEM) was employed to determine the morphological aspects. Results demonstrated a very high increase in the nanofibre diameter, with decreasing dipole moment and increasing boiling point and density of solvents. The smallest nanofibre diameter and bead structure was revealed for the PVB solution prepared by n-butanol. With regard to morphological aspects, isopropnol was selected as the most suitable solvent for a range of PVB molecular weights.

 
Keyword(s): ELECTROSPINNING, POLYVINYLBUTIRAL, NANOFIBRE, ISOPROPANOL, BUTANOL, ETHANOL
 
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