Effect of heat treatment on morphology and crystallinity of electrospun Poly(vinyl alcohol) nanofibers (original) (raw)

2016, AIP Conference Proceedings

Four temperatures of heat treatment had been used (110 ºC, 135 ºC, 150 ºC, and 160 ºC) to give different effects on the morphology of PVA nanofibers. Heat treatment changed the crystallinity of PVA nanofibers which was indicated by the changes of XRD FWHM spectral peaks, and the crystallite size. The changes in the intensity of FTIR spectral transmittance were also observed which might be caused by the differences temperature of heat treatment. The larger crystallite size and the smaller XRD FWHM spectral values indicated greater crystallinity of PVA nanofibers that was expected to increase the stability and physical properties of PVA nanofibers.

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