Study of dielectric properties of (PVCMWCNTs) Polymer nanocomposite

ABSTRACT Thermal pressure is one of the easiest methods fabricating polymers nanocomposites bulk. In this study the range of 5%, 10%, 15%, 20%, 25%, 30%, 35% and 40% of weight percentages of Multi walled carbon nanotube (MWCNT) were added to polyvinyl chloride (PVC) powder . Final mixing of each of any concentration has pressured under temperature 80 C . …Dielectric properties were measured at room temperature and different frequencies; it was found that the dielectric constant increased with increasing the carbon nanotubes content, but decreasing with increasing frequency. This may be due to polarization effects of the nanocomposite. Also the dielectric loss of polymer composites has been measured. The results refer that the dielectric loss isreduced with increasing of frequency and The A.C conductivity is increases with the increasing of the concentration of Multi walled carbon nanotube because of the increase of the charge carriers and the formation of a continuous network of Multi walled carbon nanotube inside the nanocomposites. .