Fabrication of TWNT/PAN nanocomposite fibers by wet spinning

초록

Wet spinning has been recognized as the advantage of producing reelable fiber for the fabrication of continuous fibers. The produced nanofibers of polymer using wet spinning can find wide applications, such as rayon, aramid, acrylic and spandex. In this study, Polyacrylonitrile (PAN)/thin-walled carbon nanotubes (TWNT) composite fibers were spun from solutions in dimethyl sulfoxide (DMSO) using wet spinning method. The reinforcing effect of TWNTs on the PAN fibers was studied by addition of TWNTs. For making a spinning solution, dimethyl sulfoxide (DMSO) was used as solvent. Because of low dispersity of TWNTs in DMSO, TWNTs were treated with fluorosurfactant. Mechanical properties of composite fibers were measured using UTM. Also, the structure and morphology of composite fibers were characterized by scanning and transmission electron microscopy.