Research Progress on Graphene/Polymer Composites with Non-covalent Surface Modification

Abstract

Graphene possesses excellent mechanical, electrical and thermal properties, which has been wildly used in modification of polymer composites. However, graphene has poor compatibility with polymers due to its surface inactive properties. This weakness restricts the composites performances, so it is necessary to make a surface modification for graphene. The non-covalent surface modification method can protect the pristine structure of graphene and improve the surface activity, and this is suitable for building high performance functional composites. The current developments of the non-covalent surface modification on graphene were summarized,and the relationship between the structure and properties of composites filled by functional graphene were illustrated. Finally, some existing problems about weak interfacial strength of graphene based polymer composites were discussed.At the same time, its future perspective of low cost production and accurate microstructure control was proposed.

Keywords

• graphene
• non-covalent surface modification
• composite
• mechanical property
• electrical pro-perty