Polymer Composites with Graphene

Dielectric and Microwave Properties

Authored by: Vitaliy G. Shevchenko , Polina M. Nedorezova , Alexander N. Ozerin

Graphene Science Handbook

Print publication date:  April  2016
Online publication date:  April  2016

Print ISBN: 9781466591318
eBook ISBN: 9781466591325
Adobe ISBN:

10.1201/b19642-38

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Abstract

Polymer composites with graphene or graphene oxide can be even more promising compared to polymer composites with carbon nanotubes. Different strategies to disperse graphene in polymers are discussed. They include solvent- and melt-based methods as well as in situ polymerization. The properties of composites strongly depend on the method of their synthesis, as this defines the dispersion of graphene in polymer. The methods facilitating graphene dispersion, such as ultrasonic treatment or chemical functionalization, are discussed. Analytical techniques for characterizing particle dimensions, surface characteristics, and dispersion in matrix polymers are reviewed. We review the electrical properties of graphene/polymer nanocomposites as a function of the method of synthesis and the type of polymer matrix (amorphous, crystalline, or semicrystalline). Percolation and electrical behavior at different frequencies are discussed, including direct current conductivity, low frequency, and microwave properties. We also review current challenges with the processing of graphene composites and future perspectives and applications for electrical properties of this new class of nanocomposites.

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