Physical properties of polyvinyl alcohol electrospun fiber mat
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Author list: Phachamud T., Phiriyawirut M.
Publication year: 2011
Journal: Research Journal of Pharmaceutical, Biological and Chemical Sciences (0975-8585)
Volume number: 2
Issue number: 2
Start page: 675
End page: 684
Number of pages: 10
ISSN: 0975-8585
Languages: English-Great Britain (EN-GB)
Abstract
PVA fiber has been interested because of its nontoxic, biocompatible properties and also chemical and thermal stability. PVA electrospun fiber mat was prepared with electrospining technique in this study. The process parameters were investigated their effect on the morphological characteristic, diameter and number of fiber per area of prepared fiber mats. These process parameters comprised polymer concentration (8, 10 and 12% w/w PVA), electrical potential (15, 20 and 25 kV) and distance (10, 12.5 and 15 cm between the tip of the nozzle and collector device). Polymer concentration was the main factor affected the morphological characteristic, diameter, number of fiber per area of PVA electrospun fiber. The increased collector distance did not diminish the defect of bead formation. However the longer oblong beaded fiber was evident as the collector distance was increased because the time interval for polymer stretching was longer. To obtain the desired PVA fiber the suitable electrospinning condition should be: 10% w/w PVA solution, electrical potential 20 kV and the collector distance of 15 cm. Increased spinning voltage could change the curve to stretched fiber. The obtained electrospun fiber mat exhibited the homogeneous distribution, high swelling and weight loss which it showed the potential ability for using as the wound dressing material. ฉ 2010 RJPBCS.
Keywords
Electrospun fiber mat
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