Production of CNTs fibers by wet spinning method and investigation of their physical properties

In this work PVA / MWCNT composite fibers were produced by a wet spinning method. In order to fabricate the fibers, first carbon nanotubes were dispersed in deionized water using sodium dodecyl sulfate (SDS) surfactant. Using UV-vis analysis, the highly dispersion of carbon nanotubes was confirmed. Such solution was mixed homogenously in an aqueous solution of PVA and then was injected into PVA and Na2SO4 static coagulation baths. The resulting fibers were uniform and homogeneous in diameter and could be spun out indefinitely. The structure of the fibers was syudied by SEM and their strength was investigated using an Instrom tensile tester