Open AccessElectromagnetic Interference Shielding Efficiency in the Range 8.2-12.4 GHz of Polymer Composites with Dispersed Carbon Nanoparticles
Author(s) -
Anna V. Gubarevich,
Kazuki Komoriya,
Osamu Odawara
Publication year - 2011
Publication title -
eurasian chemico-technological journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.227
H-Index - 9
eISSN - 2522-4867
pISSN - 1562-3920
DOI - 10.18321/ectj100
Subject(s) - materials science , composite material , carbon nanotube , electromagnetic shielding , graphite , nanoparticle , carbon black , polymer , composite number , reflection loss , carbon fibers , nanotechnology , natural rubber
In the present work, electromagnetic interference shielding properties of polymer composites with dispersed cup-stacked carbon nanotubes, graphite nanoparticles and carbon black were investigated. The polymer composites with carbon nanoparticles content from 1 to 5 w% were successfully prepared by the coagulation method, and composite sheets with thickness from 0.25 to 0.77 mm were formed by the hot press technique. The electromagnetic interference shielding efficiency measured in the frequency range of 8.2~12.4 GHz (X-band) of cup-stacked carbon nanotubes/polymer composite was considerably higher than that of carbon black and graphite nanoparticles polymer composites at the same contents of carbon nanoparticles, and contribution of absorption to the shielding efficiency was found to be higher than that of reflection.