Development of yarn spinning method by electrospinning technique

Electrospinning has been generally used for production of nanofiber surfaces while nanofiber yarn spinning by this method is a new approach enabling use of nanofibers in yarn form. The main aim of this study is to design, install and develop the nanofiber yarn production system by electrospinning method. In this context, a nanofiber yarn spinning system that can control yarn fineness and twist to produce continuous yarn was successfully developed. Firstly, a prototype system consisting of two injectors, one conical collector, DC power supply, two dosing pumps and a yarn winding system was established. By producing PAN nanofiber yarn and analyzing the working principle of the system, the effect of collector rotation speed, yarn winding speed, polymer feeding speed on fiber and yarn properties were investigated. In addition, the conductivity of the polymer solution was increased and fiber and yarn properties were investigated. Following these studies, PLC controlled nanofiber yarn spinning system was designed and installed, the resulting yarns were analyzed and the system was further improved to make nanofiber yarn spinning easier and more stable.