Study of Mechanical Properties of PVA/PA6 Core-Sheath and PA6 Hollow Nanofiber Yarns

In this paper, core-sheath and hollow nanofiber yarns are produced using two asymmetric differently charged nozzles. PVA nanofiber as core and PA6 nanofiber as sheath were used. PA6 hollow nanofiber yarn was prepared by dissolving PVA portion in boiling water. The morphology and mechanical properties of these yarns were studied. SEM images of nanofiber yarns confirmed bicomponent and hollow state of these yarns. Mechanical test of the core-sheath and hollow nanofiber yarn showed that tensile strength of hollow nanofiber yarn is more than that of core-sheath nanofiber yarns. These yarns have potential applications in medical field such as tissue engineering, 3D scaffolds, drug delivery and artificial blood vessels

کلیدواژه ها:

electrospinning ، core-sheath nanofiber yarns ، hollow nanofiber yarns ، mechanical properties ، poly vinyl alcohol