Influence of MWCNT dispersion on electric properties of nanocomposites with polyester matrix

Abstract

Commonly, the polymers present low electric properties. For their improvement, using an appropriate dispersion technology, polymer materials are added with nanoparticles having superior electric properties. In this way, multiwall carbon nanotubes (MWCNT) and an unsaturated polyester resin were used. In order to relieve physical and chemical processes that induce the improved electrical properties to polyester/MWCNT nanocomposite material, the results obtained for different MWCNT concentrations (0,10%; 0,15%; 0,20%) are comparative presented. The contribution of multiwall carbon nanotubes concentration and their dispersion technology on nanocomposite material obtaining with improved electric properties was analyzed. Both SEM and electric conductivity analysis confirms MWCNT optimum concentration in unsaturated polyester matrix.