Recent Advances in Polymer and Polymer Composites for Electromagnetic Interference Shielding: Review and Future Prospects

Kumar, Pradip; Maiti, Uday Narayan; Sikdar, Anirban; Das, Tapas; Kumar, Asheesh; Sudarsan, V.

doi:10.1080/15583724.2019.1625058

Cited by 178 publications

(108 citation statements)

References 249 publications

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“…The use of carbon nanotubes (CNT) as filler material in polymeric composites has shown great potential for applications such as electrostatic discharge (ESD) and electromagnetic interference (EMI) prevention [1][2][3][4][5][6][7][8][9][10]. In particular, the CNT composites' electrical conductivities reported by various research groups provide the basis for their broad applicability in space systems [1][2][3][4][5][6]9,10]. While development of EMI prevention devices has been focused on metallic meshes or metallic-resin composites [6,8,11,12] these devices are prone to significant disadvantages in terms of weight and cost [6,8,12,13].…”

Section: Introductionmentioning

confidence: 99%

Impact of Current and Temperature on Extremely Low Loading Epoxy-CNT Conductive Composites

et al. 2020

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Carbon nanotube (CNT) conductive composites have attracted significant attention for their potential use in applications such as electrostatic dissipation and/or electromagnetic interference shielding. The focus of this work is to evaluate resistivity trends of extremely low loading (<0.1 wt%) epoxy-CNT composites that lack a connected CNT network, but still present electrical conductivity values appropriate for those uses. The impact of current, temperature, and cycle life on electrical properties are here identified and tied to possible performance limits. At extremely low loadings, the CNT content is not sufficient to form a completely interconnected grid, thus, electrons must travel through insulating media. While still in the semi-conductor range, resistivity values are observed to decrease with increasing direct current and demonstrate a non-ohmic behavior. CNT epoxy composites were subjected to elevated currents and/or temperatures over diverse periods of time to examine impacts on resistivity. Microstructural analyses of composite samples were conducted to observe signs of damage for specimens taken to extreme temperatures/currents. An understanding of the electrical conductivity characteristics of extremely low loading epoxy-CNT composites and their failure mechanisms will aid in understanding risks associated with their use in challenging environments that may include high temperatures, high currents, and/or high frequencies.

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Section: Introductionmentioning

confidence: 99%

Impact of Current and Temperature on Extremely Low Loading Epoxy-CNT Conductive Composites

et al. 2020

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“…EMI occurs via the emission of EMF by various sources such as base stations, mobile telephones, electrical appliances, wireless communication devices etc. The interference of waves causes such problems as malfunctioning of electronic devices or other electronic systems by blurring the signals and results the shortening the life of electronic devices [1][2][3]. Furthermore, the electromagnetic pollution threatens the human health that headache, nervousness, insomnia, drowsiness may be seen in those exposed to EMI [4].…”

Section: Introductionmentioning

confidence: 99%

“…Although, the energy of radio waves is very low, the folded energy generated by the interference of these low frequency waves is much more effective than the effect of a single low frequency wave. In order to eliminate this pollution, electromagnetic interference filtering or shielding (EMI-S) applications should be realized [3].…”

Section: Introductionmentioning

confidence: 99%

“…The shielding effectiveness (SE) of materials is expressed in units of 'decibel'(dB). Many different materials are used for EMI-S such as; silver, gold, copper; bronze, high magnetic permeable iron and nickel alloys, ferromagnetic alloys and coatings, polymers, cement, composites and carbon materials [3,5]. The common feature of the materials used is that they are electrically conductive and act as a Faraday cage to reflect electromagnetic waves and show magnetic features in the absorption mechanism.…”

Section: Introductionmentioning

confidence: 99%

“…The low corrosion resistance of metals and composites makes them difficult to use as EMI-S materials. On the other hand, carbon materials such as carbon fibers, carbon nanotubes or graphene have been being remarkable materials due to their thermal stability, oxidation resistance and cheapness [3,6]. Aal et al [7] have shown that the graphene paper as a carbon material can be a good microwave protector for industrial or military use.…”

Section: Introductionmentioning

confidence: 99%

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Biochar-iron composites as electromagnetic interference shielding material

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et al. 2019

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Electromagnetic waves emitted by electrical and electronic devices constitute interference with each other, which becomes a problem for security devices, space vehicles, ships, electronics or even human beings. Electromagnetic interference (EMI) protective materials are being developed to eliminate such negative effects of electromagnetic waves. Especially carbon-based ones are becoming increasingly important. The carbonized material biochar, derived from biomass, emerges as a sustainable, renewable, environmentally friendly and inexpensive EMI material. In this study EMI protective effect of biochar derived from industrial tea waste biomass and its iron composite was investigated. The effect values of the samples were found to be greater than 10 dB.

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Conducting Polymers

Uribe

Palma-Cando

2022

Kirk-Othmer Encyclopedia of Chemical Technology

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This article gives valuable information about the history and the different families, synthesis, and characteristics of the most used conducting polymers, namely, polyphenylenes, polypyrroles, polythiophenes, poly(arylene‐vinylenes), polyanilines, and polycarbazoles, and diverse conducting polymers (liquid crystalline conducting polymers (LCCPs), conducting polymer blends, composites, and colloids). Also discussed are the information about the fundamental aspects of the conducting process including charge carriers, doping processes, optical properties, and electrical conduction properties and, finally, the practical information regarding stability and applications.

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Recent Advances in Polymer and Polymer Composites for Electromagnetic Interference Shielding: Review and Future Prospects

Cited by 178 publications

References 249 publications

Impact of Current and Temperature on Extremely Low Loading Epoxy-CNT Conductive Composites

Impact of Current and Temperature on Extremely Low Loading Epoxy-CNT Conductive Composites

Biochar-iron composites as electromagnetic interference shielding material

Conducting Polymers

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