Interfacial Structure in Polypropylene/Globular-Nanocarbon Nanocomposites

Interfacial regions in polypropylene/globular-nanocarbon composites were shown to have a multilayered structure consisting of layers of polymer adsorbed to the surface of nanofiller particles (particle aggregates). Increasing the level of polymer-matrix—nanofiller-surface interfacial adhesion decreased the number of such layers. As expected, the interfacial-region parameters were determined by characteristics of both the nanofiller and polymer matrix.