Abstract
Graphene-based nanocomposites possess excellent mechanical, electrical, thermal, optical, and chemical properties. These materials have potential applications in high-performance transistors, biomedical systems, sensors, and solar cells. This paper presents a critical review of the recent developments in graphene-based nanocomposite research, exploring synthesis methods, characterizations, mechanical properties, and thermal properties. Emphasis is placed on characterization techniques and mechanical properties with detailed examples from recent literature. The importance of characterization techniques including Raman spectroscopy, X-ray diffraction (XRD), atomic force microscopy (AFM), scanning electron microscopy (SEM), and high-resolution transmission electron microscopy (HRTEM) for the characterization of graphene flakes and their composites were thoroughly discussed. Finally, the effect of graphene even at very low loadings on the mechanical properties of the composite matrix was extensively reviewed.
Highlights
This paper provides a critical review of the synthesis, properties and characterizations perspectives of recent advances in graphene-based nanocomposites
These techniques include optical microscopy, scanning electron microscopy, high transmission electron microscopy, Raman spectroscopy, atomic force microscopy and X-ray diffraction; these have been shown to be very useful for quantification of nanocomposites
In a comprehensive study [4], it was demonstrated that the addition of 1.0 wt.% of graphene to PMMA leads to an increase of 80% in the elastic modulus and 20% in increase in ultimate tensile strength
Summary
This paper provides a critical review of the synthesis, properties and characterizations perspectives of recent advances in graphene-based nanocomposites. They highlight the polymer nanocomposite processing methods and the morphological states for graphene-based polymer nanocomposites. Detailed research results of graphene characterization from recent literature are thoroughly discussed. A summary from recent research that exemplifies the effect of graphene’s filler on the improvement of mechanical properties of graphene-based polymer nanocomposites is thoroughly discussed. Two major tables summarizing the reinforcing effect of graphene-based materials on mechanical properties and thermal conductivity have been constructed. The variation in thermal conductivity with different forms of graphene and graphite nanocomposites from recent research are summarized
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