What is it about?
Ethylene vinyl acetate copolymer (EVA) composite materials containing multiwall carbon nanotubes (CNT), graphene (Gr) and iron(III,IV) oxide (Fe3O4) nanoparticles where processed by melt blending. Film specimens were prepared by using compression moulding method. Content of all nanoparticles in samples was 20 wt%. The material was investigated using dielectric spectroscopy in a range from 10^-2 Hz to 10^7 Hz to investigate the effect of nanoparticles on the dielectricly active (ε’) and passive components (ε’’), specific electrical conductivity (σ’) and dielectric loss (tg) for the characterization of the dissipation of electromagnetic energy.
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Why is it important?
If we can find a nanopartice combination that effecticaly encreeses polimer dielectrical properties in specific frequences, then it would be possible to create new materials for anti-radar technlogies.
Perspectives
Further we can move to creating a layered composites, it is expected that nanoparticle effects will be much more efficient.
Anda Barkāne
Rigas Tehniska universitate
Read the Original
This page is a summary of: Dielectric Properties of Ethylene Vinyl Acetate Copolymer Composites Filled with Carbon Nanotubes, Graphene Nanoplatelets and Iron Oxide Nanoparticles, Key Engineering Materials, April 2019, Trans Tech Publications,
DOI: 10.4028/www.scientific.net/kem.800.195.
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