Chapter Six - Multilayer Graphene/Elastomer Nanocomposites

Abstract

This comprehensive case study of multilayer graphene (MLG) as a multifunctional nanofiller in elastomer/graphene nanocomposites illustrates the state of the art for commercial mass application. By comparing different elastomeric matrices, the outstanding impact of MLG on the properties of nanocomposites is demonstrated to be generally beneficial. The effect of varying concentrations is discussed in detail and highlights the demand for only a few parts per hundred rubber (phr). Different mixing procedures are sketched, demonstrating the use of a solution of mixed masterbatches as facile implementation into conventional rubber processing. The most probable commercial uses of MLG in combination with carbon black is investigated. Various properties of the uncured and vulcanized rubber nanocomposites were investigated: rheology, curing, morphology (scanning electron micrograph, transmission electron microscopy), tensile tests, hardness, dynamic-mechanical analysis, abrasion, electrical and thermal conductivity, gas permeability, weathering stability, and burning behavior. The structure property relationships are asserted and confirmed, for example, by investigating the MLG’s ultraviolet absorption, radical scavenging ability, and aspect ratio.