Functionalized graphene comprising two or more types of amines, and preparation method therefor
AssigneeDongjin Semichem Co., Ltd.
InventorsSunchan Park, Hyeonseong Choe, Soo Yeon Lee, Seon Yeong Gong
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Abstract
Disclosed is a functionalized graphene containing two or more amines having excellent electrical, thermal and mechanical properties by allowing good interfacial bonding force and uniform dispersion with a thermoplastic polymer, and a method for preparing the functional graphene. The functionalized graphene comprises a carbon material selected from the group consisting of graphene, reduced graphene, graphene oxide, and mixture thereof; and a monovalent amine group and a bivalent or higher amine group which are bonded to the carbon material.
Claims15
A functionalized graphene with an amine group comprising:
- a carbon material selected from a group consisting of graphene, reduced graphene, graphene oxide, and mixture thereof;
- and
- a monovalent amine group and a bivalent or higher amine group which are bonded to the carbon material,
- wherein a molar ratio of the monovalent amine group and the bivalent or higher amine group is 1:9 to 9:1.
A method for preparing a functionalized graphene comprising the steps of:
- mixing a carbon material and a first solvent to prepare a carbon material dispersion, the carbon material being selected from a group consisting of graphene, reduced graphene, graphene oxide and mixture thereof;
- and
- adding to the carbon material dispersion an amine solution in which a first amine compound having a monovalent amine group, a second amine compound having a bivalent or higher amine group and a second solvent are mixed, to chemically bond the amine group to the carbon material,
- wherein a molar ratio of the monovalent amine group and the bivalent or higher amine group is 1:9 to 9:1.
A functionalized graphene with an amine group comprising:
- a carbon material selected from a group consisting of graphene, reduced graphene, graphene oxide, and mixture thereof;
- and
- a monovalent amine group and a bivalent or higher amine group which are bonded to the carbon material,
- wherein the bivalent or higher amine group is cyclic alkylamine group having 6 to 15 carbon atoms.
Dependencies are inferred from the claim text.