1
|
Zecchi S, Cristoforo G, Bartoli M, Tagliaferro A, Torsello D, Rosso C, Boccaccio M, Acerra F. A Comprehensive Review of Electromagnetic Interference Shielding Composite Materials. MICROMACHINES 2024; 15:187. [PMID: 38398916 PMCID: PMC10891677 DOI: 10.3390/mi15020187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/22/2024] [Accepted: 01/23/2024] [Indexed: 02/25/2024]
Abstract
The interaction between matter and microwaves assumes critical significance due to the ubiquity of wireless communication technology. The selective shielding of microwaves represents the only way to achieve the control on crucial technological sectors. The implementation of microwave shielding ensures the proper functioning of electronic devices. By preventing electromagnetic pollution, shielding safeguards the integrity and optimal performances of devices, contributing to the reliability and efficiency of technological systems in various sectors and allowing the further step forwards in a safe and secure society. Nevertheless, the microwave shielding research is vast and can be quite hard to approach due to the large number and variety of studies regarding both theory and experiments. In this review, we focused our attention on the comprehensive discussion of the current state of the art of materials used for the production of electromagnetic interference shielding composites, with the aim of providing a solid reference point to explore this research field.
Collapse
Affiliation(s)
- Silvia Zecchi
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy; (S.Z.); (G.C.); (D.T.)
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Via G. Giusti 9, 50121 Firenze, Italy;
| | - Giovanni Cristoforo
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy; (S.Z.); (G.C.); (D.T.)
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Via G. Giusti 9, 50121 Firenze, Italy;
| | - Mattia Bartoli
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Via G. Giusti 9, 50121 Firenze, Italy;
- Italian Institute of Technology, Via Livorno 60, 10144 Torino, Italy
| | - Alberto Tagliaferro
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy; (S.Z.); (G.C.); (D.T.)
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Via G. Giusti 9, 50121 Firenze, Italy;
| | - Daniele Torsello
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy; (S.Z.); (G.C.); (D.T.)
- Istituto Nazionale di Fisica Nucleare, Sez. Torino, Via P. Giuria 1, 10125 Torino, Italy
| | - Carlo Rosso
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy;
| | - Marco Boccaccio
- Leonardo Labs, OGR Tech, Corso Castelfidardo 22, 10138 Torino, Italy
| | - Francesco Acerra
- Leonardo Aircraft, Viale dell’Aeronautica Sns, 80038 Pomigliano d’Arco, Italy;
| |
Collapse
|
2
|
Radio-Absorbing Materials Based on Polymer Composites and Their Application to Solving the Problems of Electromagnetic Compatibility. Polymers (Basel) 2022; 14:polym14153026. [PMID: 35893990 PMCID: PMC9331814 DOI: 10.3390/polym14153026] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 06/19/2022] [Accepted: 07/02/2022] [Indexed: 01/27/2023] Open
Abstract
Recently, designers of electronic equipment have paid special attention to the issue of electromagnetic compatibility (EMC) of devices with their own components and assemblies. This is due to the high sensitivity of semiconductor microcircuits to electromagnetic interference. This interference can be caused either by natural phenomena, such as lightning strikes, or by technical processes, such as transients in circuits during fast periodic or random switching. Either way, interference implies a sudden change in voltage or current in a circuit, which is undesirable, whether it propagates along a cable or is transmitted as an electromagnetic wave. The purpose of this article is to review the works devoted to the development, creation, and investigation of modern polymeric nanocomposite materials used for shielding electromagnetic radiation and their effective application for solving problems of electromagnetic compatibility. Additionally, the approach to design EMI shielding complex media with predetermined parameters based on investigation of various properties of possible components is shown. In the review, all polymer composites are classified according to the type of filler. The issues of the interaction of a polymer with conductive fillers, the influence of the concentration of fillers and their location inside the matrix, and the structure of the nanocomposite on the mechanisms of electromagnetic interaction are considered. Particular attention is paid to a new generation of nanocomposite materials with widely adjustable electrical and magnetic properties. A wide class of modern filled polymeric materials with dielectric and magneto-dielectric losses is considered. These materials make it possible to create effective absorbers of electromagnetic waves that provide a low level of reflection coefficient in the microwave range. The model mechanisms for shielding electromagnetic radiation are considered in the paper. A detailed review of the electro-physical properties of polymer nanocomposites is provided. Multilayer electrodynamic media containing combinations of layers of filled polymer composite materials with nanoparticles of different compositions and manufactured using a single technology will make it possible to create electrodynamic media and coatings with the required electro-physical characteristics of absorption, transmission, and reflection. Within the framework of the two-layer coating model, the difference in the effects of the interaction of electromagnetic radiation with conductive layers located on a dielectric and metal substrate is demonstrated. It is shown that in order to achieve optimal (maximum) values of reflection and absorption of electromagnetic radiation in the appropriate frequency range, it is necessary to fit the appropriate layer thicknesses, specific conductivity, and permittivity. Such approach allows designers to create new shielding materials that can effectively vary the shielding, absorbing, and matching characteristics of coatings over a wide frequency band. In general, it can be said that the development of innovative polymer composite materials for shielding electronic devices from electromagnetic interference and excessive electromagnetic background is still an important task. Its solution will ensure the safe and uninterrupted operation of modern digital electronics and can be used for other applications.
Collapse
|
3
|
Zhang X, Jia Z, Zhang F, Xia Z, Zou J, Gu Z, Wu G. MOF-derived NiFe 2S 4/Porous carbon composites as electromagnetic wave absorber. J Colloid Interface Sci 2021; 610:610-620. [PMID: 34848054 DOI: 10.1016/j.jcis.2021.11.110] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 11/18/2021] [Accepted: 11/19/2021] [Indexed: 12/12/2022]
Abstract
The preparation of strong absorption, thin thickness and wide band electromagnetic wave absorbers has always been the focus of research. In this paper, NiFe2S4/PC composites, an electromagnetic wave absorbing material with excellent performance, is prepared by introducing Ni-MOF, Fe and S elements into porous carbon framework. The material has a minimum reflection loss (RLmin) of -51.41 dB and the matching thickness is only 1.8 mm. In addition, the effective absorption bandwidth (EAB) is 4.08 GHz when the thickness is 1.9 mm. The rich interface and good impedance matching characteristics are the main reasons for the excellent absorbing performance of the material. The experimental results show that NiFe2S4/PC composites is a reasonable and effective electromagnetic wave absorption material.
Collapse
Affiliation(s)
- Xiaoyi Zhang
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, PR China; Weihai Innovation Institute, Qingdao University, Weihai 264200, P.R. China
| | - Zirui Jia
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, PR China; Weihai Innovation Institute, Qingdao University, Weihai 264200, P.R. China.
| | - Feng Zhang
- Institute of Materials for Energy and Environment, State Key Laboratory of Bio-fibers and Eco-textiles, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, PR China
| | - Zihao Xia
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, PR China
| | - Jiaxiao Zou
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, PR China
| | - Zheng Gu
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, PR China; Weihai Innovation Institute, Qingdao University, Weihai 264200, P.R. China.
| | - Guanglei Wu
- Institute of Materials for Energy and Environment, State Key Laboratory of Bio-fibers and Eco-textiles, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, PR China.
| |
Collapse
|
4
|
Effects of Recycled Fe 2O 3 Nanofiller on the Structural, Thermal, Mechanical, Dielectric, and Magnetic Properties of PTFE Matrix. Polymers (Basel) 2021; 13:polym13142332. [PMID: 34301089 PMCID: PMC8309594 DOI: 10.3390/polym13142332] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 06/29/2021] [Accepted: 06/29/2021] [Indexed: 01/18/2023] Open
Abstract
The purpose of this study was to improve the dielectric, magnetic, and thermal properties of polytetrafluoroethylene (PTFE) composites using recycled Fe2O3 (rFe2O3) nanofiller. Hematite (Fe2O3) was recycled from mill scale waste and the particle size was reduced to 11.3 nm after 6 h of high-energy ball milling. Different compositions (5–25 wt %) of rFe2O3 nanoparticles were incorporated as a filler in the PTFE matrix through a hydraulic pressing and sintering method in order to fabricate rFe2O3–PTFE nanocomposites. The microstructure properties of rFe2O3 nanoparticles and the nanocomposites were characterized through X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and high-resolution transmission electron microscopy (HRTEM). The thermal expansion coefficients (CTEs) of the PTFE matrix and nanocomposites were determined using a dilatometer apparatus. The complex permittivity and permeability were measured using rectangular waveguide connected to vector network analyzer (VNA) in the frequency range 8.2–12.4 GHz. The CTE of PTFE matrix decreased from 65.28×10−6/°C to 39.84×10−6/°C when the filler loading increased to 25 wt %. The real (ε′) and imaginary (ε″) parts of permittivity increased with the rFe2O3 loading and reached maximum values of 3.1 and 0.23 at 8 GHz when the filler loading was increased from 5 to 25 wt %. A maximum complex permeability of 1.1−j0.07 was also achieved by 25 wt % nanocomposite at 10 GHz.
Collapse
|
5
|
Motta Neves R, Zattera AJ, Campos Amico S. Enhancing thermal and dynamic‐mechanical properties of epoxy reinforced by amino‐functionalized microcrystalline cellulose. J Appl Polym Sci 2021. [DOI: 10.1002/app.51329] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Roberta Motta Neves
- Postgraduate Program in Mining, Metallurgical and Materials Engineering Federal University of Rio Grande do Sul (UFRGS) Porto Alegre Brazil
| | - Ademir José Zattera
- Postgraduate Program in Engineering of Processes and Technologies (PGEPROTEC) University of Caxias do Sul (UCS) Caxias do Sul Brazil
| | - Sandro Campos Amico
- Postgraduate Program in Mining, Metallurgical and Materials Engineering Federal University of Rio Grande do Sul (UFRGS) Porto Alegre Brazil
| |
Collapse
|
6
|
Gao XH, Wang JW, Liu DN, Wang XZ, Wang HQ, Wei L, Ren H. Improving the dielectric properties of acrylic resin elastomer with reduced graphene oxide decorated with polystyrene. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110418] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
7
|
Kruželák J, Kvasničáková A, Hložeková K, Hudec I. Progress in polymers and polymer composites used as efficient materials for EMI shielding. NANOSCALE ADVANCES 2021; 3:123-172. [PMID: 36131869 PMCID: PMC9417728 DOI: 10.1039/d0na00760a] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 11/07/2020] [Indexed: 05/04/2023]
Abstract
The explosive progress of electronic devices and communication systems results in the production of undesirable electromagnetic pollution, known as electromagnetic interference. The accumulation of electromagnetic radiation in space results in the malfunction of commercial and military electronic appliances, and it may have a negative impact on human health. Thus, the shielding of undesirable electromagnetic interference has become a serious concern of the modern society, and has been a very perspective field of research and development. This paper provides detailed insight into current trends in the advancement of various polymer-based materials with the effects of electromagnetic interference shielding. First, the theoretical aspects of shielding are outlined. Then, the comprehensive description of the structure, morphology and functionalization of the intrinsic conductive polymers, polymers filled with the different types of inorganic and organic fillers, as well as multifunctional polymer architectures are provided with respect to their conductive, dielectric, magnetic and shielding characteristics.
Collapse
Affiliation(s)
- Ján Kruželák
- Department of Plastics, Rubber and Fibres, Faculty of Chemical and Food Technology, Slovak University of Technology Radlinského 9 812 37 Bratislava Slovakia +421 02 5932589
| | - Andrea Kvasničáková
- Department of Plastics, Rubber and Fibres, Faculty of Chemical and Food Technology, Slovak University of Technology Radlinského 9 812 37 Bratislava Slovakia +421 02 5932589
| | - Klaudia Hložeková
- Department of Plastics, Rubber and Fibres, Faculty of Chemical and Food Technology, Slovak University of Technology Radlinského 9 812 37 Bratislava Slovakia +421 02 5932589
| | - Ivan Hudec
- Department of Plastics, Rubber and Fibres, Faculty of Chemical and Food Technology, Slovak University of Technology Radlinského 9 812 37 Bratislava Slovakia +421 02 5932589
| |
Collapse
|
8
|
Ahmad AF, Aziz SA, Yaakob Y, Abd Ali A, Issa NA. Preparation and Characterization of Semi-Flexible Substrates from Natural Fiber/Nickel Oxide/Polycaprolactone Composite for Microstrip Patch Antenna Circuitries for Microwave Applications. Polymers (Basel) 2020; 12:polym12102400. [PMID: 33086502 PMCID: PMC7603174 DOI: 10.3390/polym12102400] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 09/19/2020] [Accepted: 09/25/2020] [Indexed: 12/19/2022] Open
Abstract
The study intended to utilizing waste organic fiber for low-cost semi-flexible substrate fabrication to develop microstrip patch antennas for low band communication applications. All the semi-flexible substrates (12.2 wt. % OPEFF/87.8 wt. % PCL, 12.2 wt. % NiO/87.8 wt. % PCL, and 25 wt. % OPEFF/25 wt. % NiO/50 wt. % PCL) were fabricated by oil palm empty fruit fiber (OPEFF) mixed with nickel oxide (NiO) nanoparticles reinforced with polycaprolactone (PCL) as a matrix using a Thermo Haake blending machine. The morphology and crystalized structure of the substrates were tested using Fourier transform infrared (FTIR) spectrometry, X-ray diffraction (X-RD) technique, and scanning electron microscopy (SEM), respectively. The thermal stability behavior of the substrates was analyzed using thermogravimetric analysis (TGA) and differential thermogravimetric (DTG) thermogram. The dielectric properties were characterized by an open-ended coaxial probe (OEC) connected with Agilent N5230A PNA-L Network Analyzer included the 85070E2 dielectric software at frequency range of 8 to 12 GHz. The experimental results showed that NiO/OPEFF/PCL composites exhibit controllable permittivity dielectric constant εr′(f) between 1.89 and 4.2 (Farad/meter, (F/m)), with loss factor εr′′(f) between 0.08 and 0.62 F/m, and loss tangent (tan δ) between 0.05 and 0.18. Return losses measurement of the three patch antennas OPEFF/PCL, NiO/PCL, and OPEFF/NiO/PCL are −11.93, −14.2 and −16.3 dB respectively. Finally, the commercial software package, Computer Simulation Technology Microwave Studio (CSTMWS), was used to investigate the antenna performance by simulate S-parameters based on the measured dielectric parameters. A negligible difference is found between the measured and simulated results. Finally, the results obtained encourage the possibility of using natural fibers and nickel oxide in preparation of the substrates utilize at microwave applications.
Collapse
Affiliation(s)
- Ahmad Fahad Ahmad
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia;
- Correspondence: (A.F.A.); (S.A.A.); Tel.: +60-173-370-907 (A.F.A.); +60-122-843-370 (S.A.A.)
| | - Sidek Ab Aziz
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia;
- Correspondence: (A.F.A.); (S.A.A.); Tel.: +60-173-370-907 (A.F.A.); +60-122-843-370 (S.A.A.)
| | - Yazid Yaakob
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia;
| | | | - Nour Attallah Issa
- Department of Physics, Faculty of Science, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia;
| |
Collapse
|
9
|
Ibrahim Lakin I, Abbas Z, Azis RS, Abubakar Alhaji I. Complex Permittivity and Electromagnetic Interference Shielding Effectiveness of OPEFB Fiber-Polylactic Acid Filled with Reduced Graphene Oxide. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E4602. [PMID: 33081082 PMCID: PMC7602733 DOI: 10.3390/ma13204602] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 07/31/2020] [Accepted: 08/05/2020] [Indexed: 11/16/2022]
Abstract
This study was aimed at fabricating composites of polylactic acid (PLA) matrix-reinforced oil palm empty fruit bunch (OPEFB) fiber filled with chemically reduced graphene oxide (rGO). A total of 2-8 wt.% rGO/OPEFB/PLA composites were characterized for their complex permittivity using an open-ended coaxial probe (OEC) technique. The shielding efficiency properties were calculated using the measured transmission (S21) and the reflection (S11) coefficient results. All the measurements and calculations were performed in the 8-12 GHz frequency range. The morphological and microstructural study included X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), and Fourier transform infrared spectroscopy (FTIR). The results indicated that the incorporation of rGO as filler into the composites enhanced their complex permittivity properties. The composites showed a total shielding efficiency (SET) of about 31.2 dB at a frequency range of 8-12 GHz, which suggests their usefulness for microwave absorption.
Collapse
Affiliation(s)
- Ismail Ibrahim Lakin
- Department of Physics, Faculty of Science, University Putra Malaysia (UPM), Serdang 43400, Malaysia; (I.I.L.); (R.S.A.); (I.A.A.)
| | - Zulkifly Abbas
- Department of Physics, Faculty of Science, University Putra Malaysia (UPM), Serdang 43400, Malaysia; (I.I.L.); (R.S.A.); (I.A.A.)
| | - Rabaah Syahidah Azis
- Department of Physics, Faculty of Science, University Putra Malaysia (UPM), Serdang 43400, Malaysia; (I.I.L.); (R.S.A.); (I.A.A.)
- Material Synthesis and Characterization Laboratory, Institute of Advanced Technology (ITMA), University Putra Malaysia (UPM), Serdang 43400, Malaysia
| | - Ibrahim Abubakar Alhaji
- Department of Physics, Faculty of Science, University Putra Malaysia (UPM), Serdang 43400, Malaysia; (I.I.L.); (R.S.A.); (I.A.A.)
| |
Collapse
|
10
|
Gao Z, Zhang J, Zhang S, Lan D, Zhao Z, Kou K. Strategies for electromagnetic wave absorbers derived from zeolite imidazole framework (ZIF-67) with ferrocene containing polymers. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122679] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
11
|
Mousavi SM, Low FW, Hashemi SA, Samsudin NA, Shakeri M, Yusoff Y, Rahsepar M, Lai CW, Babapoor A, Soroshnia S, Goh SM, Tiong SK, Amin N. Development of hydrophobic reduced graphene oxide as a new efficient approach for photochemotherapy. RSC Adv 2020; 10:12851-12863. [PMID: 35492106 PMCID: PMC9051426 DOI: 10.1039/d0ra00186d] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 03/09/2020] [Indexed: 11/21/2022] Open
Abstract
Nowadays, chemotherapy is one of the crucial and common therapies in the world. So far, it has been revealed to be highly promising, yet patients suffer from the consequences of severe negative medical dosages. In order to overcome these issues, the enhancement of photothermal chemotherapy with reduced graphene oxide (rGO) as a photothermal agent (PTA) is widely utilised in current medical technologies. This is due to its high near-infrared region (NIR) response, in vitro or in vivo organism biocompatibility, low risk of side effects, and effective positive results. Moreover, rGO not only has the ability to ensure that selective cancer cells have a higher mortality rate but can also improve the growth rate of recovering tissues that are untouched by necrosis and apoptosis. These two pathways are specific diverse modalities of cell death that are distinguished by cell membrane disruption and deoxyribonucleic acid (DNA) disintegration of the membrane via phosphatidylserine exposure in the absence of cell membrane damage. Therefore, this review aimed to demonstrate the recent achievements in the modification of rGO nanoparticles as a PTA as well as present a new approach for performing photochemotherapy in the clinical setting. rGO of QD-rGO nanocomposite could absorb and convert into heat when harvested under NIR radiation, resulting cell death with reduction of fluorescence.![]()
Collapse
|
12
|
Shukla V. Review of electromagnetic interference shielding materials fabricated by iron ingredients. NANOSCALE ADVANCES 2019; 1:1640-1671. [PMID: 36134227 PMCID: PMC9417679 DOI: 10.1039/c9na00108e] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 04/01/2019] [Indexed: 05/20/2023]
Abstract
Iron (Fe) and its counterparts, such as Fe2O3, Fe3O4, carbonyl iron and FeO, have attracted the attention of researchers during the past few years due to their bio-compatibility, bio-degradability and diverse applications in the field of medicines, electronics and energy; including water treatment, catalysis and electromagnetic wave interference shielding etc. In this review paper, we aimed to explore iron based materials for the prevention of electromagnetic interference (EMI) by means of both reflection and absorption processes, including the standard methods of synthesis of Fe-based materials along with the determination of EMI performance. It is customary that a proper combination of two dielectric-losses, i.e. electrical and magnetic losses, give excellent microwave absorption properties. Therefore, we focused on the different strategies of preparation of these iron based composites with dielectric carbon materials, polymers etc. Additionally, we explained their positive and negative aspects.
Collapse
Affiliation(s)
- Vineeta Shukla
- Nuclear Condensed Matter Physics Laboratory, Department of Physics, Indian Institute of Technology Kharagpur-721302 India +91 9026690597
| |
Collapse
|
13
|
Yadav RS, Kuřitka I, Vilčáková J, Machovský M, Škoda D, Urbánek P, Masař M, Gořalik M, Urbánek M, Kalina L, Havlica J. Polypropylene Nanocomposite Filled with Spinel Ferrite NiFe 2O 4 Nanoparticles and In-Situ Thermally-Reduced Graphene Oxide for Electromagnetic Interference Shielding Application. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E621. [PMID: 30995813 PMCID: PMC6523113 DOI: 10.3390/nano9040621] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 04/11/2019] [Accepted: 04/14/2019] [Indexed: 11/16/2022]
Abstract
Herein, we presented electromagnetic interference shielding characteristics of NiFe2O4 nanoparticles-in-situ thermally-reduced graphene oxide (RGO)-polypropylene nanocomposites with the variation of reduced graphene oxide content. The structural, morphological, magnetic, and electromagnetic parameters and mechanical characteristics of fabricated nanocomposites were investigated and studied in detail. The controllable composition of NiFe2O4-RGO-Polypropylene nanocomposites exhibited electromagnetic interference (EMI) shielding effectiveness (SE) with a value of 29.4 dB at a thickness of 2 mm. The enhanced EMI shielding properties of nanocomposites with the increase of RGO content could be assigned to enhanced attenuation ability, high conductivity, dipole and interfacial polarization, eddy current loss, and natural resonance. The fabricated lightweight NiFe2O4-RGO-Polypropylene nanocomposites have potential as a high performance electromagnetic interference shielding nanocomposite.
Collapse
Affiliation(s)
- Raghvendra Singh Yadav
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic.
| | - Ivo Kuřitka
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic.
| | - Jarmila Vilčáková
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic.
| | - Michal Machovský
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic.
| | - David Škoda
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic.
| | - Pavel Urbánek
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic.
| | - Milan Masař
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic.
| | - Marek Gořalik
- Faculty of Technology, Tomas Bata University in Zlín, Vavrečkova 275, 760 01 Zlín, Czech Republic.
| | - Michal Urbánek
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic.
| | - Lukáš Kalina
- Materials Research Centre, Brno University of Technology, Purkyňova 464/118, 61200 Brno, Czech Republic.
| | - Jaromir Havlica
- Materials Research Centre, Brno University of Technology, Purkyňova 464/118, 61200 Brno, Czech Republic.
| |
Collapse
|
14
|
Ahmad AF, Aziz SA, Abbas Z, Obaiys SJ, Matori KA, Zaid MHM, Raad HK, Aliyu US. Chemically Reduced Graphene Oxide-Reinforced Poly(Lactic Acid)/Poly(Ethylene Glycol) Nanocomposites: Preparation, Characterization, and Applications in Electromagnetic Interference Shielding. Polymers (Basel) 2019; 11:E661. [PMID: 30978935 PMCID: PMC6523337 DOI: 10.3390/polym11040661] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 03/05/2019] [Accepted: 03/07/2019] [Indexed: 11/16/2022] Open
Abstract
In this study, a nanocomposite of reduced graphene oxide (RGO) nanofiller-reinforcement poly(lactic acid) (PLA)/poly(ethylene glycol) (PEG) matrix was prepared via the melt blending method. The flexibility of PLA was improved by blending the polymer with a PEG plasticizer as a second polymer. To enhance the electromagnetic interference shielding properties of the nanocomposite, different RGO wt % were combined with the PLA/PEG blend. Using Fourier-transform infrared (FT-IR) spectroscopy, field emission scanning electron microscopy (FE-SEM) and X-ray diffraction, the structural, microstructure, and morphological properties of the polymer and the RGO/PLA/PEG nanocomposites were examined. These studies showed that the RGO addition did not considerably affect the crystallinity of the resulting nanomaterials. Thermal analysis (TGA) reveals that the addition of RGO highly improved the thermal stability of PLA/PEG nanocomposites. The dielectric properties and electromagnetic interference shielding effectiveness of the synthesized nanocomposites were calculated and showed a higher SE total value than the target value (20 dB). On the other hand, the results showed an increased power loss by increasing the frequency and conversely decreased with an increased percentage of filler.
Collapse
Affiliation(s)
- Ahmad Fahad Ahmad
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia.
| | - Sidek Ab Aziz
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia.
| | - Zulkifly Abbas
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia.
| | - Suzan Jabbar Obaiys
- School of Mathematical & Computer Sciences, Heriot-Watt University Malaysia, Putrajaya 62200, Malaysia.
| | - Khamirul Amin Matori
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia.
| | - Mohd Hafiz Mohd Zaid
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia.
| | - Haider K Raad
- Engineering Physics Program, Xavier University, Cincinnati, OH 45207, USA.
| | - Umar Sa'ad Aliyu
- Department of Physics, Federal University Lafia, Lafia 0146, Nigeria.
| |
Collapse
|