Chemical and Physical Properties of Electrospinning Nanofibers of Different Concentrations of Polyacrylonitrile by Adding Octadecylamine

Abstract

The viscosity of polyacrylonitrile solutions was determined at different concentrations and in the presence and absence of a specific concentration of the surfactant octadecylamine, which is ODA (5×10-5M), in order to determine the limiting concentration for the formation of the polymeric structure, and it was found that this concentration starts at (5%W). By weight, the prepared solutions were spun with a locally manufactured electrospinning device at a voltage of 20 KV and a flow of 0.5 ml/h, using X-ray diffraction spectrum and using Debye-Scherrer relationship. It was found that it ranged between (100-500) nm., using the complex impedance spectrum, it was found that the equivalent electrical circuit is resistance in parallel with a capacitor, then the relaxation time was calculated as a function of concentration, and it was found that the relaxation time increases with increasing concentration. Thus by using XRD spectroscopy, according to the average crystallization size of PAN by adding ODA, compared with pure PAN, a noticeable decrease was found in the average crystallization size after adding the surface-active substance.