The effect of collector parameters on nanofiber yarns produced by electro yarn spinning machine with conical collector

Abstract

In this work, electrospun yarns were produced by a nanofiber yarn spinning machine with a conical collector. In the first part, two different polymers (PAN and PVDF-HFP) were used in nanofiber yarn spinning with two different types of conical collector which are made of stainless steel and aluminium. In the second part, four different types of aluminium collector having different wall thickness and surface properties were used. For all yarns produced, the effect of different parameters has been analyzed in terms of fibre fineness distribution, yarn fineness and yarn linear density, yarn strength and breaking elongation. The results show that yarns produced by using aluminium collector are finer and have higher strength compare to the ones produced by stainless steel collector while PVDF-HFP nanofiber yarns are finer and have higher tensile strength compare to PAN. The results also show that yarns get coarser while fibres get finer as the collector wall thickness is increased in general.