Elektro-üretim yöntemi ile termoplastik poliüretandan (TPU) nanolif eldesi

Fibers are the main building blocks of all textile structures. Fabrics, yarns, and othertextiles are constructed by fibers which directly affect the finished products infunctionality and performance. Fine fibers have increasingly been used in textileproducts due to the fact that the handling and performance of yarns and fabricsconstructed by fine fibers are more preferable than the coarse fibers. In terms of fibers,?nano? refers to the diameter of the fiber. Generally speaking, nanofibers have diametersless than one micron and cannot be seen without visual amplification. In the nanometerrange, electrospinning technique has been proved to be convenient, effective and hasbeen used for processing many fibers.In this study, solution electrospinning and melt electrospinning setups were establishedin order to produce nanofibers from thermoplastic polyurethane (TPU). In solutionelectrospinning process solution concentration, applied voltage and distance from tip ofthe needle to collector were used as experimental parameters while in meltelectrospinning process processing temperature, applied voltage and distance fromspinneret exit to collector were used. The electrospinning processes of TPU fibersobtained in two different setups have been observed. Finally the results obtained byevaluating samples which were formed by two different electrospinning setups arediscussed visually and statistically.Key words: Electrospinning, nanofiber, thermoplastic polyurethane (TPU)iii