Rubber composites able to absorb electromangetic radiation

Kód výsledku v IS VaVaI

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RIV/70883521:28610/19:63524280

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Rubber composites able to absorb electromangetic radiation

Popis výsledku v původním jazyce

Due to increasing amount of electronic and radiation sources, the need electromagnetic radiation shielding has become more and more actual. In generally, three mechanisms contribute to the overall effectiveness of electromagnetic radiation shielding, namely absorption, reflection and multiply reflection. The primary mechanism of shielding is reflection, which refers to a simple reflection of electromagnetic radiation wave from the surface of the shield. Absorption is secondary mechanism of shielding and depends on the thickness of shielding material. In addition to reflection and absorption, the third mechanism of shielding is multiply reflection which refers to reflection of electromagnetic waves from various surfaces and phase interfaces in the shielding material. Rubber magnetic composites tested in this work were prepared by incorporation of magnetic soft manganese-zinc ferrite into rubber matrix based on acrylonitrile butadiene rubber. The aim was to investigate the influence of magnetic filler content on the cross-linking, physical-mechanical and shielding properties of the rubber magnets. The results showed that although the tensile strength showed decreasing trend with increasing content of magnetic filler, the tested composites are able to efficiently shield the harmful electromagnetic radiation in the selected frequency range. The biggest preference of these materials is their ability to shield the electromagnetic radiation by absorption mechanisms.

Název v anglickém jazyce

Rubber composites able to absorb electromangetic radiation

Popis výsledku anglicky

Due to increasing amount of electronic and radiation sources, the need electromagnetic radiation shielding has become more and more actual. In generally, three mechanisms contribute to the overall effectiveness of electromagnetic radiation shielding, namely absorption, reflection and multiply reflection. The primary mechanism of shielding is reflection, which refers to a simple reflection of electromagnetic radiation wave from the surface of the shield. Absorption is secondary mechanism of shielding and depends on the thickness of shielding material. In addition to reflection and absorption, the third mechanism of shielding is multiply reflection which refers to reflection of electromagnetic waves from various surfaces and phase interfaces in the shielding material. Rubber magnetic composites tested in this work were prepared by incorporation of magnetic soft manganese-zinc ferrite into rubber matrix based on acrylonitrile butadiene rubber. The aim was to investigate the influence of magnetic filler content on the cross-linking, physical-mechanical and shielding properties of the rubber magnets. The results showed that although the tensile strength showed decreasing trend with increasing content of magnetic filler, the tested composites are able to efficiently shield the harmful electromagnetic radiation in the selected frequency range. The biggest preference of these materials is their ability to shield the electromagnetic radiation by absorption mechanisms.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

10404 - Polymer science

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů