Method of making a large area graphene composite material

摘要

Large area graphene (LAG) sheets can be embedded in a polymer-based material as a mechanical reinforcement or to otherwise enhance the properties of the polymer-based material. The LAG sheets can be nanoperforated and/or functionalized to enhance interaction between the graphene and the polymer. Reactive functional groups can facilitate formation of covalent bonds between the graphene and the polymer so that the LAG sheets become an integral part of the cross-linked structure in curable polymer-based materials. Nanoperforations in the LAG sheets provide useful sites for the functional groups and can allow cross-links to form through the nanoperforations.

主权项

1. A method of making a composite panel, comprising the steps of:
embedding a large area graphene (LAG) sheet in a layer of material comprising a polymeric matrix material; functionalizing the LAG sheet with reactive functional groups before the step of embedding; and reacting the polymer matrix material with at least some of the reactive functional groups to form covalent bonds between the LAG sheet and the polymer matrix material.