Magnetic graphite nanoplatelets
AssigneeTeledyne Scientific & Imaging, LLC
InventorsRahul Ganguli, Julia J. Mack, Vivek Mehrotra
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Abstract
Provided is a magnetic graphite nanoplatelet, and a method of manufacturing nanocomposites by introducing the magnetic nanoplatelets into a composite matrix. Expanded crystalline graphite, in the form of graphite nanoplatelets, is mixed with magnetic particles to adhere the particles to the nanoplatelets. The magnetic graphite nanoplatelets are combined with a composite matrix, typically a polymer, to form a nanocomposite. In the presence of an applied magnetic field, the magnetic graphite nanoplatelets orient and align consistent with the magnetic field to yield a composite having enhance mechanical, electrical and thermal properties.
Claims18
A magnetic graphite nanoplatelet compound, comprising:
- a plurality of expanded graphite nanoplatelets having a random orientation;
- and
- magnetic metal particles dispersed among, and adhered to, the plurality of graphite nanoplatelets.
A magnetic graphite nanoplatelet compound comprising:
- a plurality of expanded graphite nanoplatelets having a random orientation;
- and
- ferromagnetic particles dispersed among, and adhered to, the plurality of graphite nanoplatelets, wherein the ferromagnetic particles are iron.
A nanocomposite, comprising:
- a plurality of expanded graphite nanoplatelets;
- magnetic iron particles adhered to the graphite nanoplatelets;
- and
- a composite matrix.
A method of manufacturing a nanocomposite, the method comprising:
- expanding crystalline graphite to form graphite nanoplatelets;
- adhering magnetic iron particles to the expanded graphite nanoplatelets;
- and
- mixing the expanded graphite nanoplatelets with adhered magnetic iron particles in a composite matrix.
A method of manufacturing a nanocomposite comprising:
- expanding crystalline graphite to form graphite nanoplatelets;
- cryo-milling the expanded graphite nanoplatelets;
- adhering magnetic particles to the expanded graphite nanoplatelets;
- and
- mixing the expanded graphite nanoplatelets with adhered magnetic particles in a composite matrix.
Dependencies are inferred from the claim text.