Journal
PROGRESS IN ORGANIC COATINGS
Volume 59, Issue 2, Pages 101-105Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.porgcoat.2006.12.006
Keywords
EMI shielding effectiveness; graphite nanosheets; shielding coatings
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Shielding coatings based on graphite nanosheets were prepared by compounding method. The surface morphology of the graphite nanosheets and conductive coatings was examined by scanning electron microscopy. The surface resistivity of the coatings was greatly declined by incorporating the graphite nanosheets. The electromagnetic interference shielding effectiveness (SE) from 0.3 MHz to 1.5 GHz was also studied, and found that the SE of the coatings was consistent with its conductivity. The best sample was shown to exhibit up to 38 dB of SE at 1.5 GHz (with a thickness of 400 mu m). The main shielding mechanism of the system was reflection and multiple reflections. (C) 2007 Published by Elsevier B.V.
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