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US 8,389,603 B2Granted
Thermal nanocomposites
AssigneePPG Industries Ohio, Inc.
InventorsTapesh Yadav, Clayton Kostelecky, Evan Franke, Bijan Miremadi, Ming Au, Anthony Vigliotti
Life of this patent
Estimating the term…
Abstract
Methods for preparing nanocomposites with thermal properties modified by powder size below 100 nanometers. Both low-loaded and highly-loaded nanocomposites are included. Nanoscale coated, un-coated, whisker type fillers are taught. Thermal nanocomposite layers may be prepared on substrates.
Claims26
A method for preparing a thermal nanocomposite comprising:
- processing a nanocomposite mixture to form a thermal nanocomposite comprising less than or equal to 80% nanofillers by volume in a solid polymer matrix, having a connectivity of nanofillers in 1, 2, and/or 3 dimensions, and having a thermal conductivity that differs by more than 20% as compared with the thermal conductivity exhibited by a composite material of a similar composition with filler particles having a domain size of 1 micron,
- the nanocomposite mixture comprising:
- nanofillers comprising surface treated nanoparticles and having a domain size equal to or less than the mean free path of phonons, wherein the nanofillers comprise a composition selected from the group consisting of carbides, nitrides, borides, phosphides, and silicides, with the proviso that the nanofillers do not comprise oxygen;
- and
- a polymer matrix.
2 more elements
A method for preparing a thermal nanocomposite comprising:
- processing a nanocomposite mixture to form a solid thermal nanocomposite comprising less than or equal to 80% nanofillers by volume in a solid polymer matrix, having a connectivity of nanofillers in 1, 2, and/or 3 dimensions, and having a thermal conductivity that differs by more than 20% as compared with the thermal conductivity exhibited by a composite material of a similar composition with filler particles having a domain size of 1 micron,
- the nanocomposite mixture comprising:
- nanofillers comprising coated nanoparticles and having a domain size equal to or less than the mean free path of phonons, wherein the nanofillers comprise a composition selected from the group consisting of carbides, nitrides, borides, phosphides, and silicides, with the proviso that the nanofillers do not comprise oxygen;
- and
- a polymer matrix.
2 more elements
Dependencies are inferred from the claim text.