Graphite has attracted attention as a reinforcement for polymers because of its ability to modify electrical conductivity and the mechanical and gas-barrier properties of host polymers, and its potentially lower cost than carbon nanotubes. If graphite can be exfoliated into atomically thin graphene sheets, it is possible to achieve the highest property enhancements at low loadings. However, exfoliation of graphite via conventional composite-manufacturing strategies is challenging. Recently, two different approaches for obtaining exfoliated graphite prior to blending were reported: thermal treatment and chemical modification of graphite oxide. This webinar will describe and evaluate these approaches and the methods used to produce graphene-reinforced thermoplastics, particularly polyester, polycarbonate, and polyurethane (TPU) nanocomposites. Three dispersion methods—melt blending, solution mixing, and in-situ polymerization—are compared.