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Microwave response properties of epoxy resin composites filled with graphitic fillers

TitoloMicrowave response properties of epoxy resin composites filled with graphitic fillers
Tipo di pubblicazionePresentazione a Congresso
Anno di Pubblicazione2014
AutoriBellucci, S., Bistarelli S., Cataldo Antonino, Micciulla F., Macutkevic J., Kranauskaite I., Banys J., Kuzhir P., Volynets N., Paddubskaya A., Bychanok D., Maksimenko S., Fierro V., and Celzard A.
Conference Name2014 International Conference on Numerical Electromagnetic Modeling and Optimization for RF, Microwave, and Terahertz Applications, NEMO 2014
Parole chiaveArtificial graphite, Composite materials, Computational electromagnetics, Dielectric materials, Dielectric permittivities, Electromagnetic shielding, Electromagnetic waves, Epoxy resin composites, Epoxy resins, Exfoliated graphite, Filler concentration, Fillers, Graphite, Graphite epoxy composites, Graphite particle size, Interference (EMI), Microwave experiments, Microwaves, particle size, Percolation (computer storage), Percolation (fluids), Percolation thresholds, Permittivity, Radiation shielding, Solvents
Abstract

Composite materials based on epoxy resin filled with various kinds of graphite particles: exfoliated graphite (EG), natural graphite, and coarse, medium and fine artificial graphites have been prepared. The dielectric permittivity strongly increases with graphite particle size. This effect is related to the distance of the investigated filler concentrations to the composites' percolation threshold. Microwave experiments show that exfoliated graphite is, out of investigated graphite particles, the only one being a really effective additive for producing electromagnetic (EM) interference (EMI) shielding: 2 wt.% epoxy/EG is absolutely opaque to electromagnetic radiation at 30 GHz. © 2014 IEEE.

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84921676956&doi=10.1109%2fNEMO.2014.6995701&partnerID=40&md5=1319ed6e0635e42793de6058e6bcdccd
DOI10.1109/NEMO.2014.6995701
Citation KeyBellucci2014