NDLI: Mechanical, Thermal, Electrical Characteristics and EMI Absorption Shielding Effectiveness of Rubber Composites Based on Ferrite and Carbon Fillers

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Mechanical, Thermal, Electrical Characteristics and EMI Absorption Shielding Effectiveness of Rubber Composites Based on Ferrite and Carbon Fillers

Content Provider	MDPI
Author	Andrea, Kvasničáková Klaudia, Hložeková Marek, Gořalík Jarmila, Vilčáková Kruželák, Ján Plavec, Roderik Dosoudil, Rastislav Hudec, Ivan
Copyright Year	2021
Description	In this work, rubber composites were fabricated by incorporation of manganese-zinc ferrite alone and in combination with carbon-based fillers into acrylonitrile-butadiene rubber. Electromagnetic parameters and electromagnetic interference (EMI) absorption shielding effectiveness of composite materials were examined in the frequency range 1 MHz–3 GHz. The influence of ferrite and fillers combination on thermal characteristics and mechanical properties of composites was investigated as well. The results revealed that ferrite imparts absorption shielding efficiency to the composites in tested frequency range. The absorption shielding effectiveness and absorption maxima of ferrite filled composites shifted to lower frequencies with increasing content of magnetic filler. The combination of carbon black and ferrite also resulted in the fabrication of efficient EMI shields. However, the EMI absorption shielding effectiveness was lower, which can be ascribed to higher electrical conductivity and higher permittivity of those materials. The highest conductivity and permittivity of composites filled with combination of carbon nanotubes and ferrite was responsible for the lowest absorption shielding effectiveness within the examined frequency range. The results also demonstrated that combination of ferrite with carbon-based fillers resulted in the enhancement of thermal conductivity and improvement of mechanical properties.
Starting Page	2937
e-ISSN	20734360
DOI	10.3390/polym13172937
Journal	Polymers
Issue Number	17
Volume Number	13
Language	English
Publisher	MDPI
Publisher Date	2021-08-31
Access Restriction	Open
Subject Keyword	Polymers Absorption Shielding Electromagnetic Interference Manganese-zinc Ferrite Carbon Nanotubes Carbon Black
Content Type	Text
Resource Type	Article

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