Optimization design and properties of PVA/GEL nanofibers

In this paper, the Optimization Design and properties of polyvinyl alcohol (PVA)/gelatin (GEL) nanofibers were studied. Different mass fractions of PVA (4, 5, 6 and 7 wt%), GEL (1, 2, 3 and 4 wt%), different spinning distances (8, 15, 22 and 29 cm), different voltages (10, 17, 24 and 31 kV), and different spinning speeds (0.1, 0.2, 0.3 and 0.4 mL) were designed into five factors and four levels by orthogonal experiments. The conductivity and viscosity of the mixed solution was tested. The PVA/GEL nanofibers were prepared by electrospinning and the morphology of composite nanofibers was observed under electron microscope. Finally, the PVA/GEL nanofiber film was tested by infrared spectroscopy and X-ray diffraction. The results showed that the infrared spectral groups and X-ray diffraction angles of nanofibers with different PVA/GEL ratios have little change. PVA/GEL nanofiber materials have great application potential in the field of biomedicine.