Graphene Nanocomposites Prepared From Blends of Polymer Latex with Chemically Reduced Graphite Oxide Dispersions

Abstract

Graphene nanocomposites are prepared by chemical reduction of graphite oxide (GO) dispersion with vitamin C in the presence of SAN latex followed by melt compounding. In this process, GO is well dispersed in an aqueous SAN emulsion before reduction. During reduction the SAN latex is adsorbed on the graphene sheets of the chemically reduced GO (CRGO). After melt compounding of such hybrid particles with SAN, the nanocomposites show uniform dispersion of CRGO in SAN resulting in improved stiffness with respect to SAN/graphite. The reduction of GO in the presence of polymer latex represents a versatile route to graphene masterbatches and does not require either drying of GO or thermal GO expansion at high temperatures. magnified image

Transport performance in novel elastomer nanocomposites: Mechanism, design and control

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Carbon-based nanofillers/Poly(butylene terephthalate): thermal, dielectric, electrical and rheological properties

“…It is known that graphene sheets strongly interact with each other due to van der Waals forces and tend to form large aggregates in graphite. Oxidation of graphite to GO to ease the separation of the sheets [27], followed by thermal [28,29] or chemical [30,31] reduction of GO is a new route to produce graphene sheets consisting of only a few layers [32]. Furthermore, this process holds promise for up-scaling to produce reduced GO in industrially required amounts.…”

Crosslinked reduced graphene oxide/polymer composites via in situ synthesis by semicontinuous emulsion polymerization

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