Hybrid polymer composites for EMI shielding application- a review

Chandra, R. B. Jagadeesh; Shivamurthy, B.; Kulkarni, Suresh D.; Kumar, M. Sathish

doi:10.1088/2053-1591/aaff00

Cited by 85 publications

(42 citation statements)

References 140 publications

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“…However, there are few drawbacks such as interference, security, and probable health issues for wireless communications 3 – 5 . The interference of electromagnetic (EM) waves from various devices can be led to high amounts of noise in connections by undesired constructive/destructive ways 6 – 9 . Among various methods, the shielding of electronic devices by microwave absorbers is an attractive and practical method to be safe against electromagnetic interferences and brings good electromagnetic compatibility (EMC) for the operating devices 10 , 11 .…”

Section: Introductionmentioning

confidence: 99%

Structural, magnetic, and gigahertz-range electromagnetic wave absorption properties of bulk Ni–Zn ferrite

Derakhshani

Taheri-Nassaj

Jazirehpour

et al. 2021

Sci Rep

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Nickel–zinc ferrite (Ni0.5Zn0.5Fe2O4) powders were prepared by the conventional solid-state route and sintered at 1100 and 1300 °C for utilization as a tile electromagnetic wave absorber. Structural, magnetic, and microwave absorption properties were investigated by characterization techniques of X-ray diffraction, thermogravimetric analysis, Raman spectroscopy, electron microscopy, vibrating sample magnetometry, and vector network analyzer. The samples sintered at 1300 °C showed high magnetic saturation of 87 emu/g and low coercivity of 4 Oe. Electromagnetic investigations exhibit high reflection losses up to − 48.1 dB at certain high and low gigahertz frequencies, as clearly depicted in the 3D contour plot. The optimized condition between reflection loss, thickness, and bandwidth revealed a reflection loss of about − 36.1 dB at the matching thickness of 3.7 mm for the X-band. Furthermore, the effective working bandwidth at − 10 dB was up to ~ 7.1 GHz for the minimum thickness of 4.3 mm, which thoroughly covered the C-band. The microwave absorption performance of the well-sintered Ni–Zn ferrite was attributed to the incorporation of dielectric and magnetic loss mechanisms in which the magnetic part prevails.

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Section: Introductionmentioning

confidence: 99%

Structural, magnetic, and gigahertz-range electromagnetic wave absorption properties of bulk Ni–Zn ferrite

Derakhshani

Taheri-Nassaj

Jazirehpour

et al. 2021

Sci Rep

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“…Graphene and metals although are the most suitable composites for EMI shielding but have some limitations [106,107]. Due to the advancement in electronic applications, the demand for an effective shielding material has also boost up where thermal expansion, material design flexibility, and non-corrosive properties play a significant role.…”

Section: Methods For Preparation Of Polymer-based Compositesmentioning

confidence: 99%

Preparation Methods for Graphene Metal and Polymer Based Composites for EMI Shielding Materials: State of the Art Review of the Conventional and Machine Learning Methods

Ayub

Guan

Ahmad

et al. 2021

Metals

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Advancement of novel electromagnetic inference (EMI) materials is essential in various industries. The purpose of this study is to present a state-of-the-art review on the methods used in the formation of graphene-, metal- and polymer-based composite EMI materials. The study indicates that in graphene- and metal-based composites, the utilization of alternating deposition method provides the highest shielding effectiveness. However, in polymer-based composite, the utilization of chemical vapor deposition method showed the highest shielding effectiveness. Furthermore, this review reveals that there is a gap in the literature in terms of the application of artificial intelligence and machine learning methods. The results further reveal that within the past half-decade machine learning methods, including artificial neural networks, have brought significant improvement for modelling EMI materials. We identified a research trend in the direction of using advanced forms of machine learning for comparative analysis, research and development employing hybrid and ensemble machine learning methods to deliver higher performance.

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“…Polymer matrices influence the dispersion and distribution of fillers and formation of filler network structure within the composite materials and thus they can enhance the shielding effects. Polymer composites as efficient EMI shields have already been used in practical applications in the sphere of automobiles, aerospace, aircraft, power electronics, or communication systems 1‐4 . As outlined, EMI shielding properties to the polymer composites can be imparted by the incorporation of different types of fillers.…”

Section: Introductionmentioning

confidence: 99%

Cross‐linking, mechanical, dynamical, and EMI absorption shielding effectiveness of NBR based composites filled with combination on ferrite and carbon based fillers

Kruželák

Kvasničáková

Bochkarev

et al. 2021

Polymers for Advanced Techs

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In the current study, manganese‐zinc ferrite in a concentration scale ranging from 100 to 500 phr was incorporated into acrylonitrile‐butadiene rubber having the constant amount of carbon black (20 phr) or carbon nanotubes (5 phr). The work was focused on the investigation of fillers combination on curing process, physical‐mechanical, and dynamic characteristics of composites. The electromagnetic interference absorption shielding efficiency of composites was subsequently investigated at low frequencies. The results revealed that composites filled with a combination of ferrite and CB are able to efficiently shield electromagnetic radiation in the tested frequency range 1 MHz to 3 GHz, while electromagnetic interference absorption shielding performance of CNT/ferrite composites was insufficient. The reason can be attributed to the outstanding increase of electrical conductivity of composites filled with combination of ferrite and CNT. As the best absorption shielding material can be considered the CB/ferrite composite containing 100 phr of ferrite, as it exhibited the widest absorption frequency bandwidth at return loss of −10 and −20 dB. The presence of ferrite in composites resulted in the decrease of cross‐link density, modification of curing characteristics and physical‐mechanical properties, and no significant influence on glass transition temperature.

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Hybrid polymer composites for EMI shielding application- a review

Cited by 85 publications

References 140 publications

Structural, magnetic, and gigahertz-range electromagnetic wave absorption properties of bulk Ni–Zn ferrite

Structural, magnetic, and gigahertz-range electromagnetic wave absorption properties of bulk Ni–Zn ferrite

Preparation Methods for Graphene Metal and Polymer Based Composites for EMI Shielding Materials: State of the Art Review of the Conventional and Machine Learning Methods

Cross‐linking, mechanical, dynamical, and EMI absorption shielding effectiveness of NBR based composites filled with combination on ferrite and carbon based fillers

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