Preparation and Characterization of Nano-scale Polyvinyl alcohol(PVA) Non-woven by Using Electrospinning

摘要

This paper has described the electrospinning process, the processing conditions, fiber morphology and some possible use of PVA. The different type of PVA fibers were obtained in nano-scale(50～250nm) by changing concentration, voltage and distance. The fibers were found to be efficiently cross-linked by glyoxal during the curing process. Phosphoric acid was observed as a catalyst activator to suppress strength losses in the cross-linking process. Differential scanning calorimetric(DSC), thermogravimetric(TGA), scanning electron micrograph(SEM) and fourier transform infared(FTIR) techniques were employed to characterize the PVA fibers.