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Correlation between Electrical Conductivity and Microwave Shielding Effectiveness of Natural Rubber Based Composites, Containing Different Hybrid Fillers Obtained by Impregnation Technology
Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah, KSA
Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah, KSA
Department of Mathematics, Faculty of Science, King Abdulaziz University, Jeddah, KSA
Department of Polymer Engineering, University of Chemical Technology and Metallurgy, Sofia, Bulgaria
Department of Polymer Engineering, University of Chemical Technology and Metallurgy, Sofia, Bulgaria
Department of Telecommunications, Faculty of Telecommunications and Management, University of Telecommunications and Post, Sofia, Bulgaria
Department of Communication and Computer Engineering, Faculty of Engineering, South-West University ‘Neofit Rilski’, Blagoevgrad, Bulgaria
- 1 Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah, KSA
- 2 Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah, KSA
- 3 Department of Mathematics, Faculty of Science, King Abdulaziz University, Jeddah, KSA
- 4 Department of Polymer Engineering, University of Chemical Technology and Metallurgy, Sofia, Bulgaria
- 5 Department of Polymer Engineering, University of Chemical Technology and Metallurgy, Sofia, Bulgaria
- 6 Department of Telecommunications, Faculty of Telecommunications and Management, University of Telecommunications and Post, Sofia, Bulgaria
- 7 Department of Communication and Computer Engineering, Faculty of Engineering, South-West University ‘Neofit Rilski’, Blagoevgrad, Bulgaria
Materials Sciences and Applications·Volume 07 (2016)·Pages 496–509·Published 1 September 2016·DOI10.4236/msa.2016.79043
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Abstract
The paper presents the synthesis and characterization of carbon black/silicone dioxide hybrid fillers obtained by an impregnation technology. The electromagnetic interference shielding effectiveness of the composites filled with carbon black/silicone dioxide hybrid fillers was measured in wide frequency range of 1 - 12 GHz. The dc and ac electrical conductivity of composites also have been investigated. The relationship between electrical (dc and ac) conductivity and shielding effectiveness was analyzed. A positive correlation was found between the absorptive shielding effectiveness and ac conductivity for composites comprising conductive carbon black/silica filler, when the filler loading is above the percolation threshold.
KeywordsComposite MaterialsCorrelationElectrical ConductivityShielding Effectiveness
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