Graphene nanoplatelets- or graphite nanoplatelets-based nanocomposites for reducing electromagnetic interferences
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United States of America Patent
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Jul 25, 2017
Grant Date -
Oct 22, 2015
app pub date -
Oct 16, 2013
filing date -
Oct 16, 2012
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Abstract
A process for producing GNP-based polymeric nanocomposites for electromagnetic applications such as shielding and/or absorption of the energy associated to electromagnetic fields envisages a plurality of steps that include: controlled synthesis, for optimizing the morphological and electrical properties thereof, of graphene nanoplatelets (GNPs) to be used as nanofillers in a polymeric matrix; selection of the polymeric matrix so as to optimize its chemical compatibility with the type of GNPs thus obtained; production via the solution-processing technique of GNP-based polymeric nanocomposites with dielectric permittivity and electric conductivity controlled and predictable via the equivalent-effective-medium model by calibrating the parameters of the model for the specific type of polymeric matrix and GNPs used.
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