Preparation of Continuous Electrospun Nanofiber Yarn with an Auxiliary Rotating Circular Plate

摘要

Nanofiber yarn, since it might be used in weaving and knitting, has been of great interest recently due to the potential application in many fields. A modified method to produce continuous nanofiber yarn using two oppositely spinnerets system with an auxiliary rotating circular plate is suggested in this work. The influence of process parameters, such as applied voltage, spinneret-plate distance and the angle between the two spinnerets, on the morphologies and properties of nanofiber yarn were investigated in detail. The optimum process parameters obtained include that the applied voltage was 15 kv, the spinneret-plate distance was 7 cm and the angle between the two spinnerets was 130°. The mechanical properties of these yarns have been evaluated, including twist and tensile strength. This work can provide a novel and general approach to design and produce nanofiber yarns for textiles, biomedical and industrial applications.