Procedure to produce graphene and graphenic materials
AssigneeAvanzare Innovacion Tecnologica S.L.
InventorsJulio Gomez Cordon, Javier Perez Martinez, Luis Otaño Jimenez
Life of this patent
Estimating the term…
Abstract
A process for the preparation of graphene, graphene materials, graphene oxide or reduced graphene oxide and the preparation of graphene, graphene materials, graphene oxide or reduced graphene oxide integrated in a thermoplastic and/or elastomeric polymer or polymer mixture by the effect of friction is produced by kneading, e.g., in an internal mixer with closed chamber or open chamber system, that performs the exfoliation of graphite, graphite oxide or reduced graphite oxide.
Claims12
A process for the preparation of graphene, graphene oxide, or reduced graphene oxide of 1 to 30 layers or for the preparation of a polymeric materials containing graphene, graphene oxide or reduced graphene oxide of 1 to 30 layers, the process comprising an in-situ exfoliation of graphite, graphite oxide or reduced graphite oxide by kneading in a non-molten state in an internal mixer said graphite, graphite oxide or reduced graphite oxide in a polymer or a polymer mixture, wherein the polymer is a thermoplastic and/or elastomeric polymer in form of pellets, pre-cut strips, powder or sheets, wherein kneading is performed at temperature below the melting point of the polymer or the polymer mixture, thereby providing a thermoplastic and/or elastomeric polymer or polymer mixture comprising graphene, graphene oxide or reduced graphene oxide of 1 to 30 layers.
Dependencies are inferred from the claim text.