Preparation and characterization of nanoscaled poly(vinyl alcohol) fibers via electrospinning |
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Authors: | Bin?Ding Email author" target="_blank">Hak-Yong?KimEmail author Se-Chul?Lee Douk-Rae?Lee Kyung-Ju?Choi |
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Institution: | (1) Department of Textile Engineering, Chonbuk National University, 561-756 Chonju, Korea;(2) American Air Filter International, 10300, PA, USA |
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Abstract: | Nanoscaled PVA fibers were prepared by electrospinning. This paper described the electrospinning process, the processing conditions,
fiber morphology, and some potential applications of the PVA nano-fibers. PVA fibers with various diameters (50–250 nm) were
obtained by changing solution concentration, voltage and tip to collector distance (TCD). The major factor was the concentration
of PVA solution which affected the fiber diameter evidently. Increasing the concentration, the fiber diameter was increased,
and the amount of beads was reduced even to 0%. The fibers were found be efficiently crosslinked by glyoxal during the curing
process. Phosphoric acid was used as a catalyst activator to reduce strength losses during crosslinking. Scanning electron
micrograph (SEM) and differential scanning calorimetric (DSC) techniques were employed to characterize the morphology and
crosslinking of PVA fibers. It was found that the primary factor which affected the crosslinking density was the content of
chemical crosslinking agent. |
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Keywords: | Electrospinning Nanofiber Poly(vinyl alcohol) Crosslinking Glyoxal |
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