Review of Polymer Composites with Diverse Nanofillers for Electromagnetic Interference Shielding

Wanasinghe, Dimuthu; Aslani, Farhad; Ma, Guowei; Habibi, Daryoush

doi:10.3390/nano10030541

Cited by 110 publications

(54 citation statements)

References 128 publications

(165 reference statements)

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“…The data on the efficiency of the conventional and recent EM shield materials in most cases are limited to room temperature (RT) operation. [ 20–23 ] The latter is despite the fact that many new non‐metallic materials, introduced for EMI shielding, suffer from thermal instability, oxidation, or significant reduction in the shielding efficiency at high temperatures. These concerns require development of novel multifunctional materials, which can serve concurrently as an excellent EM shields with the high thermal stability and conductivity at elevated temperatures.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional Graphene Composites for Electromagnetic Shielding and Thermal Management at Elevated Temperatures

Barani

Kargar

Mohammadzadeh

et al. 2020

Adv Elect Materials

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EM radiation. For this reason, the electronic components have to be protected from the intra-and inter-system EM radiations in order to avoid fast degradation and failure. [4-14] It has also been suggested that prolonged exposure to even nonionizing EM waves in the MHz and GHz frequency range may have detrimental effects on humans and other living beings making the EMI shielding important from safety perspectives. [15-19] The dense packing of the electronic components in the state-of-the-art 2D, 2.5D, and 3D integrated systems and generation of high heat fluxes create an environment with high temperatures, which adversely affect the efficiency and stability of the EMI shielding materials. [20,21] The absorption of EM waves results in the temperature rise of the material making the situation even worse. The data on the efficiency of the conventional and recent EM shield materials in most cases are limited to room temperature (RT) operation. [20-23] The latter is despite the fact that many new non-metallic materials, introduced for EMI shielding, suffer from thermal instability, oxidation, or significant reduction in the shielding efficiency at high temperatures. These concerns require development of novel multifunctional materials, which can serve concurrently as an excellent EM shields with the high thermal stability and conductivity at elevated temperatures. The ability of such materials to act as the thermal interface materials (TIMs) which can dissipate heat efficiently becomes a necessity rather than an extra bonus feature. [2,3,20,21,24] TIMs are applied between two solid surfaces in order to fill the microscopic voids at the interface, and enhance the thermal transport from a heat source to a heat sink. [25-27] The base materials for TIMs are amorphous polymers, which have low thermal conductivity, typically in the range from 0.2 to 0.5 Wm −1 K −1. [28] For this reason, the polymers used as base materials for TIMs are filled with highly thermally conductive fillers to enhance their overall thermal conductivity. The lowweight, mechanical stability, resistance to oxidation, flexibility, and ease of manufacturing are other important criteria for TIMs. EMI shielding materials block the incident EM waves by reflection and absorption mechanisms. Both mechanisms

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Section: Introductionmentioning

confidence: 99%

Multifunctional Graphene Composites for Electromagnetic Shielding and Thermal Management at Elevated Temperatures

Barani

Kargar

Mohammadzadeh

et al. 2020

Adv Elect Materials

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“…The Shielding effectiveness values are determined using reflection, absorption and transmission expressed as R, A, and T respectively. 17,18 …”

Section: Resultsmentioning

confidence: 99%

Electromagnetic interference of nickel ferrite and copper ferrite filled low-density polyethylene composite

Vaid¹,

Rathore²,

Dwivedi³

2020

Journal of Composite Materials

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This study reports the preparation of nickel ferrite (NiFe2O4) and copper ferrite (CuFe2O4) filled low-density polyethylene (LDPE) composite through a melt mixing process for employing in electromagnetic shielding applications. The X-Ray diffraction (XRD) with different pH values 6, 8 and 10 resulted the formation of cubic structure for NiFe2O4 of cristallite size 21 nm, 25 nm and 40 nm, respectively and tetragonal structure for CuFe2O4 with crystallite size 27 nm, 24 nm and 91 nm, respectively. Electromagnetic interference (EMI) shielding measurements of the prepared samples LDPE/NiFe2O4 and LDPE/CuFe2O4 having different pH values 6, 8 and, 10 for 10% and 30% filler concentrations were analyzed over X-band with a frequency range from 8 GHz to 12.4 GHz. The pure LDPE exhibits the total shielding effectiveness (SE) of 11.6 dB whereas with the addition of NiFe2O4 and CuFe2O4, the composites exhibit increment in EMI shielding effectiveness up to the maximum value of 15.3 dB for LDPE/NiFe2O4 and 12.6 dB for LDPE/CuFe2O4 respectively.

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“…Conductive materials such as metals, conductive polymers, graphene [ 281 ], and composites coated on sheets and fabrics or in the form of foams and gaskets have been developed. Variety of fillers have been embedded into composite polymer-based materials for improving their electrical conductivity (e.g., metal nanoparticles, graphene, carbon nano/microfibers) [ 282 , 283 , 284 ]. Total effectiveness of absorption and reflection loss mechanism in EMI shields is affected by material characteristics including type of filler, electrical conductivity, size, shape, thickness, and morphology of the shields [ 285 ].…”

Section: Environmental Applicationmentioning

confidence: 99%

The Role of Electrospun Nanomaterials in the Future of Energy and Environment

2021

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Electrospinning is one of the most successful and efficient techniques for the fabrication of one-dimensional nanofibrous materials as they have widely been utilized in multiple application fields due to their intrinsic properties like high porosity, large surface area, good connectivity, wettability, and ease of fabrication from various materials. Together with current trends on energy conservation and environment remediation, a number of researchers have focused on the applications of nanofibers and their composites in this field as they have achieved some key results along the way with multiple materials and designs. In this review, recent advances on the application of nanofibers in the areas—including energy conversion, energy storage, and environmental aspects—are summarized with an outlook on their materials and structural designs. Also, this will provide a detailed overview on the future directions of demanding energy and environment fields.

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Review of Polymer Composites with Diverse Nanofillers for Electromagnetic Interference Shielding

Cited by 110 publications

References 128 publications

Multifunctional Graphene Composites for Electromagnetic Shielding and Thermal Management at Elevated Temperatures

Multifunctional Graphene Composites for Electromagnetic Shielding and Thermal Management at Elevated Temperatures

Electromagnetic interference of nickel ferrite and copper ferrite filled low-density polyethylene composite

The Role of Electrospun Nanomaterials in the Future of Energy and Environment

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