| 摘要 |
PURPOSE: Expandable graphite is provided to have excellent conductivity, to be widely used in various field using graphene including materials for a next generation-conductive circuit, and to widen the applicability. CONSTITUTION: Expandable graphite comprises a conductive metal thin film coated on the surface on expanded graphite. The conductive metal is selected from Cu, Zn, Ag, Au, Pt, Sb, Mn, Ni, Sn, V, In, and Sn. The expanded graphite comprises graphene structure. The density of the expanded graphite is 0.002-0.02 g/cm^3. The expansion ratio of expanded graphite is 100-350 times, on the basis of the carbon axis of graphite before expansion. The electric resistance value of the expanded graphite is 1×10^-6 - 8.0×10^-6.
|
