ITAST (Iranian Textile Association of Science and Technology) Journal of Textiles and Polymers 2322-5203 10 1 2022 02 01 Fabrication and Characterization of Electrospun Wool Nanoparticles/Nylon 6 Composite Nanofiber Yarn 65 78 145560 10.48302/jtp.2022.145560 EN Arezoo Rajabimehr Department of Textile Engineering, Isfahan University of Technology, Isfahan, Iran. Ali Akbar Gharehaghaji Textile Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran. 0000-0002-3819-5048 Ali Zadhoush Department of Textile Engineering, Isfahan University of Technology, Isfahan, Iran. Farideh Hajiani Fabric Design Department, Faculty of Applied Arts, University of Art, Tehran, Iran. Journal Article 2022 02 27 The present study attempts to combine the properties<br />of natural and synthetic fibers by using nanotechnology.<br />Considering the potential of nylon nanofiber structures in some<br />applications such as controlled drug release, moisture microsensors<br />and antibacterial filters, the moisture absorption of the<br />nanofibers could be improved via using biocompatible natural<br />fibers such as wool. In this investigation, it was achieved to<br />produce yarns of composite nylon 6 nanofibers, incorporating<br />wool nanoparticles (WNPs), via electrospinning. WNPs were<br />added to the electrospinning solution of nylon 6 in various<br />concentrations. Scanning electron microscopy was employed<br />to characterize the morphology of composite nanofibers.<br />The existence of WNPs in the nanofibers was confirmed by<br />transmission electron microscopy. Fourier transform infrared<br />spectroscopy (FTIR) spectra showed that nanofibrous<br />composite formation did not influence the chemical bonds of<br />both the wool nanoparticles and nylon 6, and no new steady<br />bonds were formed. It was found that an increase in the<br />WNPs concentration increased the diameter of composite<br />nanofibers from 152±16 nm (pure nanofibers) to 266±51 nm<br />(7 wt% nanoparticles). The assessment of moisture regain<br />of composite nanofiber yarns showed that the moisture<br />absorption of nylon 6 nanofibers improved by introducing the<br />WNPs as hydrophilic components. The moisture regain of the composite nanofibers yarn containing 7 wt% nanoparticles<br />was found to be higher than that of the pure nanofibers yarn<br />by about 117.1%. On the other hand, tensile strength and<br />elongation-at-break of composite nanofiber yarns initially<br />decreased and then increased with the increase in WNPs<br />concentration. http://www.itast.ir/article_145560_4dd96d05fb53b9afd7433d688981c5bd.pdf