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Journal articles on the topic 'EMI shielding behavior'

Author: Grafiati

Published: 6 September 2023

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1

Yim, Yoon-Ji, Jae Jun Lee, Alexandre Tugirumubano, Sun Ho Go, Hong Gun Kim, and Lee Ku Kwac. "Electromagnetic Interference Shielding Behavior of Magnetic Carbon Fibers Prepared by Electroless FeCoNi-Plating." Materials 14, no. 14 (2021): 3774. http://dx.doi.org/10.3390/ma14143774.

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In this study, soft magnetic metal was coated on carbon fibers (CFs) using an electroless FeCoNi-plating method to enhance the electromagnetic interference (EMI) shielding properties of CFs. Scanning electron microscopy, X-ray diffraction, and a vibrating sample magnetometer were employed to determine the morphologies, structural properties, and magnetic properties of the FeCoNi-CFs, respectively. The EMI shielding behavior of the FeCoNi-CFs was investigated in the frequency range of 300 kHz to 3 GHz through vector network analysis. The EMI shielding properties of the FeCoNi-CFs were significa

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Xia, Xiaodong, and George J. Weng. "Dual percolations of electrical conductivity and electromagnetic interference shielding in progressively agglomerated CNT/polymer nanocomposites." Mathematics and Mechanics of Solids 26, no. 8 (2021): 1120–37. http://dx.doi.org/10.1177/10812865211021460.

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Recent experiments have revealed two distinct percolation phenomena in carbon nanotube (CNT)/polymer nanocomposites: one is associated with the electrical conductivity and the other is with the electromagnetic interference (EMI) shielding. At present, however, no theories seem to exist that can simultaneously predict their percolation thresholds and the associated conductivity and EMI curves. In this work, we present an effective-medium theory with electrical and magnetic interface effects to calculate the overall conductivity of a generally agglomerated nanocomposite and invoke a solution to

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3

Saboor, Khalid, Jan, et al. "PS/PANI/MoS2 Hybrid Polymer Composites with High Dielectric Behavior and Electrical Conductivity for EMI Shielding Effectiveness." Materials 12, no. 17 (2019): 2690. http://dx.doi.org/10.3390/ma12172690.

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Liquid exfoliated molybdenum disulfide (MoS2) nanosheets and polyaniline (PANI) nanoparticles are dispersed in polystyrene (PS) matrix to fabricate hybrid polymer composites with high dielectric and electromagnetic interference (EMI) shielding behavior. A phase-separated morphology is formed when PANI and MoS2 are incorporated into polystyrene (PS) matrix. An increasing concentration of MoS2 nanoparticles inside PS/PANI (5 wt %) polymer blend forms an interconnected network, resulting in high electrical conductivity and dielectric behavior, making them a suitable candidate for EMI shielding ap

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4

Reshi, Hilal Ahmad, Shreeja Pillai, Avanish Pratap Singh, S. K. Dhawan, and Vilas Shelke. "Enhanced electromagnetic interference (EMI) shielding in BiFeO₃–graphene oxide nanocomposites over X-band frequency region." Journal of Applied Physics 131, no. 17 (2022): 174101. http://dx.doi.org/10.1063/5.0086882.

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BiFeO3–graphene oxide (BFO–GO) nanocomposites were synthesized through ultra-sonication under mild heating, and their electromagnetic interference (EMI) shielding performance was investigated. The nanocomposites preserve the crystalline phase with R3c symmetry as analyzed by Rietveld refinement of x-ray diffraction data. The Raman spectroscopy and x-ray photoelectron spectroscopy studies confirm the formation of structured GO in nanocomposites samples. Magnetic hysteresis curves indicate unsaturated magnetic behavior. The interfacial polarization is dominating in BFO–GO composites as estimated

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Chang, Ming Kuen, Hsin Hong Hsieh, and Siou Jyuan Li. "A Study of Thermal Stability and Electromaganetic Shielding Behavior of Polyaniline-P-Toluene Sulfonic Acid/Montmorillonite Nanocomposites." Applied Mechanics and Materials 52-54 (March 2011): 180–85. http://dx.doi.org/10.4028/www.scientific.net/amm.52-54.180.

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Intrinsically conductive polymer-Polyaniline had high conductivity and many other properties, such as environmental stability and rather simple synthesis. In addition, doping with organic acids could enhance its processing, so it had wide range of applications, such as solar cells, antistatic and electromagnetic interference shielding. In this study, the organic amine 1-Dodecylamine (DOA) modification of sodium montmorillonite (NA+-MMT), and conducting polymer / layered silicate salt nanocomposites (PANI-PTSA/DOA-MMT) had been prepared by doping aniline with organic acid (PTSA), then added org

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Zhao, Hui Hui, Ke Ju Ji, Ting Ting Liu, Yin Song Xu, and Zhen Dong Dai. "Electrophoretic Deposition of Foam Ni/CNT Composites and their Electromagnetic Interference Shielding Performance." Applied Mechanics and Materials 461 (November 2013): 436–44. http://dx.doi.org/10.4028/www.scientific.net/amm.461.436.

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Abstract. One of the most effective means to treat electromagnetic pollution is to develop electromagnetic interference shielding materials. Such as Foam nickel, a new lightweight porous material with large surface area, good conductivity and permeability, has drawn much expectation by virtue of its excellent electromagnetic interference shielding(EMI) performance. Recently, with the development of nanometer materials, Tremendous researches also showed that it is an efficient way to combine Foam Ni with nanometer materials for enhanced EMI performance. Herein, in this work, porous nickl/carbon

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7

Ursache, Ştefan, Romeo Cristian Ciobanu, Vlad Scarlatache, and Andrei Niagu. "Dielectric and Electromagnetic Behavior of Conductive Nanocomposites Polymers: PP/MWCNT Investigations for EMI Applications." Advanced Engineering Forum 8-9 (June 2013): 353–60. http://dx.doi.org/10.4028/www.scientific.net/aef.8-9.353.

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The paper highlights the most important dielectric features for some nanocomposites polymer matrix based on polypropylene (PP) with insertion of carbon nanotubes multi-walled (MWCNTs). The dielectric characteristics analyzed are the real permittivity and dielectric losses of the sample based on PP with 5% insertion of MWCNTs. The measurements are made in a range of frequency between 1 MHz to 3 GHz. The composite form was also analyzed through computer modeling and simulation and electromagnetic properties for EMC shielding applications are also considered. PP/MWCNTs composite with shielding ef

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8

Çat, Yunus, Veysel Baran, and Süleyman Özçelik. "EMI Shielding Effectiveness and Heater Behavior for Ge IR Windows." physica status solidi (a) 216, no. 14 (2019): 1900005. http://dx.doi.org/10.1002/pssa.201900005.

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9

Zhang, Yang Fei, Yang Luo, Shu Lin Bai, Man Li, and Zhi Yong Jia. "Shielding Effectiveness of CNTs/SSFs/PA6 Conductive Composites." Materials Science Forum 706-709 (January 2012): 1873–78. http://dx.doi.org/10.4028/www.scientific.net/msf.706-709.1873.

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A series of carbon nanotube (CNTs) and stainless steel fiber (SSFs) filled nylon 6 (PA6) conductive composites were synthesized for electromagnetic interference (EMI) shielding applications. The materials were prepared by the melt blending method with CNTs weight fraction of 1 and 3 wt% and SSFs of 2, 4, 6, 8, 10, and 12 wt%. The shielding effectiveness, electrical resistance and crystallization behaviors were measured. The results indicate that the shielding effectiveness and electrical properties can be improved by increasing either SSFs or CNTs contents. Higher content of CNTs can bring for

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10

Madinehei, Milad, Scheyla Kuester, Tatiana Kaydanova, Nima Moghimian, and Éric David. "Influence of Graphene Nanoplatelet Lateral Size on the Electrical Conductivity and Electromagnetic Interference Shielding Performance of Polyester Nanocomposites." Polymers 13, no. 15 (2021): 2567. http://dx.doi.org/10.3390/polym13152567.

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Polyester nanocomposites reinforced with graphene nanoplatelets (GnPs) with two different lateral sizes are prepared by high shear mixing, followed by compression molding. The effects of the size and concentration of GnP, as well as of the processing method, on the electrical conductivity and electromagnetic interference (EMI) shielding behavior of these nanocomposites are experimentally investigated. The in-plane electrical conductivity of the nanocomposites with larger-size GnPs is approximately one order of magnitude higher than the cross-plane volume conductivity. According to the SEM imag

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Tian, Mingwei, Minzhi Du, Lijun Qu, Shaojuan Chen, Shifeng Zhu, and Guangting Han. "Electromagnetic interference shielding cotton fabrics with high electrical conductivity and electrical heating behavior via layer-by-layer self-assembly route." RSC Advances 7, no. 68 (2017): 42641–52. http://dx.doi.org/10.1039/c7ra08224j.

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Jelmy, E. Johny, S. Ramakrishnan, and Nikhil K. Kothurkar. "EMI shielding and microwave absorption behavior of Au-MWCNT/polyaniline nanocomposites." Polymers for Advanced Technologies 27, no. 9 (2016): 1246–57. http://dx.doi.org/10.1002/pat.3790.

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13

Cai, Kaiyu, Dan Zhang, and Jose M. Castro. "Technical Feasibility of a Thermally Activated Nanotape for Electromagnetic Interference Applications." Journal of Composites Science 7, no. 8 (2023): 325. http://dx.doi.org/10.3390/jcs7080325.

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Multiwalled carbon nanotube (MWCNT) nanopaper (NP)-reinforced in-mold coating (IMC) nanocomposites were fabricated by dip soaking without organic solvent. The thermally activated IMC resin was selected to provide electromagnetic interference shielding protection for sheet molding compound (SMC) material as well as other plastic materials due to the proven good adhesion of IMC resin to the substrate. In this work, the technical feasibility of a continuous fabrication process was evaluated for a nanopaper/IMC (NP/IMC) composite. The curing behavior of the candidate IMC resin was studied for a be

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14

Oraby, Hussein, Hesham Ramzy Tantawy, Miguel A. Correa-Duarte, et al. "Tuning Electro-Magnetic Interference Shielding Efficiency of Customized Polyurethane Composite Foams Taking Advantage of rGO/Fe3O4 Hybrid Nanocomposites." Nanomaterials 12, no. 16 (2022): 2805. http://dx.doi.org/10.3390/nano12162805.

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Electromagnetic interference (EMI) has been recognized as a new sort of pollution and can be considered as the direct interference of electromagnetic waves among electronic equipment that frequently affects their typical efficiency. As a result, shielding the electronics from this interfering radiation has been addressed as critical issue of great interest. In this study, different hybrid nanocomposites consisting of magnetite nanoparticles (Fe3O4) and reduced graphene oxide (rGO) as (conductive/magnetic) fillers, taking into account different rGO mass ratios, were synthesized and characterize

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15

Bizhani, Hasti, Ali Asghar Katbab, Emil Lopez-Hernandez, Jose Miguel Miranda, and Raquel Verdejo. "Highly Deformable Porous Electromagnetic Wave Absorber Based on Ethylene–Propylene–Diene Monomer/Multiwall Carbon Nanotube Nanocomposites." Polymers 12, no. 4 (2020): 858. http://dx.doi.org/10.3390/polym12040858.

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The need for electromagnetic interference (EMI) shields has risen over the years as the result of our digitally and highly connected lifestyle. This work reports on the development of one such shield based on vulcanized rubber foams. Nanocomposites of ethylene–propylene–diene monomer (EPDM) rubber and multiwall carbon nanotubes (MWCNTs) were prepared via hot compression molding using a chemical blowing agent as foaming agent. MWCNTs accelerated the cure and led to high shear-thinning behavior, indicative of the formation of a 3D interconnected physical network. Foamed nanocomposites exhibited

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16

Im, Hye Ji, Jae Young Oh, Seongwoo Ryu, and Soon Hyung Hong. "The design and fabrication of a multilayered graded GNP/Ni/PMMA nanocomposite for enhanced EMI shielding behavior." RSC Advances 9, no. 20 (2019): 11289–95. http://dx.doi.org/10.1039/c9ra00573k.

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17

Faisal, Muhammad, and Syed Khasim. "Electrical Conductivity, Dielectric Behavior and EMI Shielding Effectiveness of Polyaniline-Yttrium Oxide Composites." Bulletin of the Korean Chemical Society 34, no. 1 (2013): 99–106. http://dx.doi.org/10.5012/bkcs.2013.34.1.99.

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18

Kuekha, Rezhna, Tahseen H. Mubarak, and Bruska Azhdar. "Electromagnetic Interference Shielding and Characterization of Ni2+ Substituted Cobalt Nanoferrites Prepared by Sol-Gel Auto Combustion Method." Advances in Materials Science and Engineering 2022 (November 28, 2022): 1–22. http://dx.doi.org/10.1155/2022/3992402.

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The structural, magnetic, and dielectric properties of a series of Ni2+ substituted cobalt nanoferrite particle samples with the composition Co1−xNixFe2O4 (where x = 0.0 ≤ x ≤ 1.0) synthesized by using the sol-gel auto combustion route are presented in this report. The electromagnetic interference shielding of Co1−xNixFe2O4/PVA nanocomposite films has been determined in the microwave X-band (8.2–12.4 GHz) frequencies. X-ray analysis revealed the single-phase formation of nickel-substituted cobalt nanoferrite samples. The decreasing trend of lattice parameters with Ni2+ substitution indicates t

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19

Mostaani, F., M. R. Moghbeli, and H. Karimian. "Electrical conductivity, aging behavior, and electromagnetic interference (EMI) shielding properties of polyaniline/MWCNT nanocomposites." Journal of Thermoplastic Composite Materials 31, no. 10 (2017): 1393–415. http://dx.doi.org/10.1177/0892705717738294.

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Electrically conducting polyaniline/multiwalled carbon nanotubes (PANi/MWCNTs) nanocomposites were successfully synthesized via chemical oxidative polymerization. For this purpose, PANi was first prepared in an aqueous acidic medium, hydrochloric acid (HCl), at various temperatures to determine the proper polymerization temperature and to prepare the polymer with the highest electrical conductivity. For nanocomposite preparation, the polymerization of aniline (ANi) was carried out in the presence of various amounts of MWCNTs dispersed using a proper surfactant. The effect of HCl and MWCNT cont

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20

Saini, Parveen, Veena Choudhary, and S. K. Dhawan. "Electrical properties and EMI shielding behavior of highly thermally stable polyaniline/colloidal graphite composites." Polymers for Advanced Technologies 20, no. 4 (2009): 355–61. http://dx.doi.org/10.1002/pat.1230.

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21

Ali, Muhammad Danish, Ammara Aslam, Talat Zeeshan, et al. "Robust effectiveness behavior of synthesized cobalt doped Prussian blue graphene oxide ferrite against EMI shielding." Inorganic Chemistry Communications 137 (March 2022): 109204. http://dx.doi.org/10.1016/j.inoche.2022.109204.

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22

Jin, Bihui, Feiran Meng, Haoyu Ma, et al. "Synergistic Manipulation of Zero-Dimension and One-Dimension Hybrid Nanofillers in Multi-Layer Two-Dimension Thin Films to Construct Light Weight Electromagnetic Interference Material." Polymers 13, no. 19 (2021): 3278. http://dx.doi.org/10.3390/polym13193278.

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Nanocomposite foam with a large expansion ratio and thin cell walls is promising for electromagnetic interference (EMI) shielding materials, due to the low electromagnetic (EM) reflection and high EM absorption. To overcome the dimensional limitation from two-dimension (2D) thin walls on the construction of conductive network, a strategy combining hybrid conductive nanofillers in semi-crystalline matrix together with supercritical CO2 (scCO2) foaming was applied: (1) one-dimension (1D) CNTs with moderate aspect ratio was used to minimize the dimensional confinement from 2D thin walls while con

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23

Gümüş, Emre, Mustafa Yağımlı, and Emin Arca. "Investigation of the Dielectric Properties of Graphite and Carbon Black-Filled Composites as Electromagnetic Interference Shielding Coatings." Applied Sciences 13, no. 15 (2023): 8893. http://dx.doi.org/10.3390/app13158893.

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The main purpose of electromagnetic interference (EMI) shielding coatings is the insulation of sensitive devices and protect people from electromagnetic field exposure due to its effects on the human body. This paper investigates the dielectric properties, and electromagnetic shielding performances of graphite and carbon black (CB) filled epoxy matrix composites produced by the mechanical mixing method. The sample compositions were created at rates ranging from 1 to 7 wt%. Samples were analyzed by Vector Network Analyzer (VNA) using the coaxial method in the range of 1–14 GHz, including L band

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Moazen, S., S. Sahebian, and M. Haddad-Sabzevar. "Low percolation behavior of HDPE/CNT nanocomposites for EMI shielding application: Random distribution to segregated structure." Synthetic Metals 281 (November 2021): 116900. http://dx.doi.org/10.1016/j.synthmet.2021.116900.

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Kamal Halder, Krishna, Rakesh K. Sonker, V. K. Sachdev, Monika Tomar, and Vinay Gupta. "Study of electrical, dielectric and EMI shielding behavior of copper metal, copper ferrite and PVDF composite." Integrated Ferroelectrics 194, no. 1 (2018): 80–87. http://dx.doi.org/10.1080/10584587.2018.1514879.

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Jeddi, Javad, Ali Asghar Katbab, and Mahsa Mehranvari. "Investigation of microstructure, electrical behavior, and EMI shielding effectiveness of silicone rubber/carbon black/nanographite hybrid composites." Polymer Composites 40, no. 10 (2019): 4056–66. http://dx.doi.org/10.1002/pc.25266.

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Kumar, Rajeev, Harish Kumar Choudhary, A. V. Anupama, et al. "Nitrogen doping as a fundamental way to enhance the EMI shielding behavior of cobalt particle-embedded carbonaceous nanostructures." New Journal of Chemistry 43, no. 14 (2019): 5568–80. http://dx.doi.org/10.1039/c9nj00639g.

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Joel, Edith Flora, and Galina Lujanienė. "Progress in Graphene Oxide Hybrids for Environmental Applications." Environments 9, no. 12 (2022): 153. http://dx.doi.org/10.3390/environments9120153.

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Graphene-oxide-based metal hybrids (GM) are used for the rapid and efficient reduction and removal of toxic adulterants in the environment. The exceptionally high specific surface area, versatile surface chemistry, and exceptional customization efficiency of graphene oxide nanosheets combined with the adaptable chemistry of metal nanoparticles enable the formation of GM hybrid nanocomposites. However, little is known about the architecture of GM nanocomposite engineering, interaction mechanisms, and environmental compatibility. This review aims to describe the environmental performance of grap

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Choudhary, Harish Kumar, Rajeev Kumar, Shital Patangrao Pawar, and Balaram Sahoo. "Role of graphitization-controlled conductivity in enhancing absorption dominated EMI shielding behavior of pyrolysis-derived Fe3C@C-PVDF nanocomposites." Materials Chemistry and Physics 263 (April 2021): 124429. http://dx.doi.org/10.1016/j.matchemphys.2021.124429.

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Choudhury, Sreeja Nath, Palash Das, Poushali Bhawal, Aparajita Pal, Pallab Banerji, and Narayan Ch Das. "Double percolation behavior through the preferential distribution of conductive black in polymer blends to boost electrical properties and EMI shielding effectiveness." Materials Today Communications 35 (June 2023): 106109. http://dx.doi.org/10.1016/j.mtcomm.2023.106109.

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Choudhary, Harish Kumar, Rajeev Kumar, Shital Patangrao Pawar, Suryasarathi Bose, and Balaram Sahoo. "Effect of Microstructure and Magnetic Properties of Ba-Pb-Hexaferrite Particles on EMI Shielding Behavior of Ba-Pb-Hexaferrite-Polyaniline-Wax Nanocomposites." Journal of Electronic Materials 49, no. 3 (2019): 1618–29. http://dx.doi.org/10.1007/s11664-019-07478-y.

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Iqbal, Sajid, Halima Khatoon, R. K. Kotnala, and Sharif Ahmad. "Bi-doped barium ferrite decorated polythiophene nanocomposite: influence of Bi-doping on structure, morphology, thermal and EMI shielding behavior for X-band." Journal of Materials Science 55, no. 33 (2020): 15894–907. http://dx.doi.org/10.1007/s10853-020-05134-z.

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Lencar, Calin, Shashank Ramakrishnan, Elnaz Erfanian, and Uttandaraman Sundararaj. "The Role of Phase Migration of Carbon Nanotubes in Melt-Mixed PVDF/PE Polymer Blends for High Conductivity and EMI Shielding Applications." Molecules 27, no. 3 (2022): 933. http://dx.doi.org/10.3390/molecules27030933.

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In this work, the effects of blend ratio and mixing time on the migration of multi-walled carbon nanotubes (MWCNTs) within poly(vinylidene fluoride) (PVDF)/polyethylene (PE) blends are studied. A novel two-step mixing approach was used to pre-localize MWCNTs within the PE phase, and subsequently allow them to migrate into the thermodynamically favored PVDF phase. Light microscopy images confirm that MWCNTs migrate from PE to PVDF, and transmission electron microscopy (TEM) images show individual MWCNTs migrating fully into PVDF, while agglomerates remained trapped at the PVDF/PE interface. PVD

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Rollo, Gennaro, Alfredo Ronca, Pierfrancesco Cerruti, et al. "On the Synergistic Effect of Multi-Walled Carbon Nanotubes and Graphene Nanoplatelets to Enhance the Functional Properties of SLS 3D-Printed Elastomeric Structures." Polymers 12, no. 8 (2020): 1841. http://dx.doi.org/10.3390/polym12081841.

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Elastomer-based porous structures realized by selective laser sintering (SLS) are emerging as a new class of attractive multifunctional materials. Herein, a thermoplastic polyurethane (TPU) powder for SLS was modified by 1 wt.% multi-walled carbon nanotube (MWCNTs) or a mixture of MWCNTs and graphene (GE) nanoparticles (70/30 wt/wt) in order to investigate on both the synergistic effect provided by the two conductive nanostructured carbonaceous fillers and the correlation between formulation, morphology, and final properties of SLS printed porous structures. In detail, porous structures with a

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Dorairajan, Mukundan, Vikram Srinivas, Vasanthakumari Raju, and Gayathri Raghavan. "Temperature Dependent Electrical Properties of Green Synthesized Silver Nanoparticles-Polyaniline Composite." Advanced Materials Research 938 (June 2014): 230–35. http://dx.doi.org/10.4028/www.scientific.net/amr.938.230.

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Polyaniline (PANI) Nanocomposites are potential materials for actuators, EMI shielding, Fuel cells and components in non volatile memory. Silver nanoparticles have wide range of applications such as catalysis, microelectronics, biotechnology and silver-oxide batteries. This work reports the effect of thermal alteration [lowhigh temperatur on the electrical conductivity of green synthesized silver (Ag) nanoparticles-polyaniline composite. A simple low cost green synthesis using Azadirachta indica [Neem] extract is employed for synthesis of silver nanoparticles; Polyaniline is prepared by redox

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Ye, Xin, Zhonglue Hu, Xiping Li, et al. "Non-Isothermal Crystallization Kinetics of Polyether-Ether-Ketone Nanocomposites and Analysis of the Mechanical and Electrical Conductivity Performance." Polymers 14, no. 21 (2022): 4623. http://dx.doi.org/10.3390/polym14214623.

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High-performance polyether-ether-ketone (PEEK) is highly desirable for a plethora of engineering applications. The incorporation of conductive carbon nanotubes (CNTs) into PEEK can impart electrical conductivity to the otherwise non-conductive matrix, which can further expand the application realm for PEEK composites. However, a number of physical properties, which are central to the functionalities of the composite, are affected by the complex interplay of the crystallinity and presence of the nanofillers, such as CNTs. It is therefore of paramount importance to conduct an in-depth investigat

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Xu, Zhenzhen, Tiantian Dou, Yazhou Wang, et al. "Three-Dimensional-Printed Carbon Nanotube/Polylactic Acid Composite for Efficient Electromagnetic Interference Shielding." Polymers 15, no. 14 (2023): 3080. http://dx.doi.org/10.3390/polym15143080.

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High-performance electromagnetic interference (EMI) shielding materials with ultralow density and environment-friendly properties are greatly demanded to address electromagnetic radiation pollution. Herein, carbon nanotube/polylactic acid (CNT/PLA) materials with different CNT contents, which exhibit characteristics of light weight, environmental protection and good chemical stability, are fabricated using 3D printing technology, where CNTs are evenly distributed and bind well with PLA. The performances of 3D-printed CNT/PLA composites are improved compared to pure 3D-printed PLA composites, w

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Tiwari, Madhvi, M. A. Arya, Priyesh V. More, Saurabh Parmar, Suwarna Datar, and Pawan K. Khanna. "Co/Co3O4 Based Nanoparticles and Their Polymer Composites for Tuned Electromagnetic Interference Shielding Application." Journal of Nanoscience and Nanotechnology 20, no. 5 (2020): 2847–57. http://dx.doi.org/10.1166/jnn.2020.17474.

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The magnetic properties of the metal nanoparticles (NPs) can play remarkable role in electromagnetic interference shielding (EMI Shielding) of many defence and commercial electronic devices. In the present work, coconut oil and PVA capped magnetic cobalt/cobalt oxide nanoparticles (Co/Co3O4 NPs) were synthesized by chemical reduction method and impregnated in polymer matrix to verify their EMI shielding behaviour. The coconut oil capped Co/Co3O4 NPs with presence of hcp and fcc phases were prepared in the size domain of 7–10 nm and the effect of surfactant (the oil) on size and oxidation state

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Jahan, MST Ishrat, Mohammad Rashed Iqbal Faruque, Md Bellal Hossain, et al. "Quad-Band Metamaterial Perfect Absorber with High Shielding Effectiveness Using Double X-Shaped Ring Resonator." Materials 16, no. 12 (2023): 4405. http://dx.doi.org/10.3390/ma16124405.

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This study assesses quad-band metamaterial perfect absorbers (MPAs) based on a double X-shaped ring resonator for electromagnetic interference (EMI) shielding applications. EMI shielding applications are primarily concerned with the shielding effectiveness values where the resonance is uniformly or non-sequentially modulated depending on the reflection and absorption behaviour. The proposed unit cell consists of double X-shaped ring resonators, a dielectric substrate of Rogers RT5870 with 1.575 mm thickness, a sensing layer, and a copper ground layer. The presented MPA yielded maximum absorpti

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Gireesh, Ch Hima, Koona Ramji, K. G. Durga Prasad, and Budumuru Srinu. "Study of Mechanical Properties and EMI Shielding Behaviour of Al6061 Hybrid Metal Matrix Composites." International Journal of Surface Engineering and Interdisciplinary Materials Science 7, no. 2 (2019): 48–63. http://dx.doi.org/10.4018/ijseims.2019070104.

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In the present technological environment, the aerospace industry needs cutting-edge materials not only to meet the requirements such as lower weight and higher values of strength and stiffness, but also to protect against electromagnetic interference. In this article, an attempt has been made to prepare Al6061 hybrid metal matrix composites reinforced with varying percentages of SiC, Al2O3, and fly ash particulates through a stir-casting route. As per ASTM standards, various tests have been conducted to know the density, tensile strength, yield strength, and hardness. Simultaneously, all the p

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Kim, Byung-Joo, Kyong-Min Bae, Young Sil Lee, Kay-Hyeok An, and Soo-Jin Park. "EMI shielding behaviors of Ni-coated MWCNTs-filled epoxy matrix nanocomposites." Surface and Coatings Technology 242 (March 2014): 125–31. http://dx.doi.org/10.1016/j.surfcoat.2014.01.030.

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Saboor, Abdul, Ahmad Nawaz Khan, Hammad M. Cheema, Khurram Yaqoob, and Ahmed Shafqat. "Effect of polyaniline on the dielectric and EMI shielding behaviors of styrene acrylonitrile." Journal of Materials Science: Materials in Electronics 27, no. 9 (2016): 9634–41. http://dx.doi.org/10.1007/s10854-016-5021-4.

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Mushtaq, Abid, and Stephan Frei. "Transfer impedance simulation and measurement methods to analyse shielding behaviour of HV cables used in Electric-Vehicles and Hybrid-Electric-Vehicles." Advances in Radio Science 14 (September 28, 2016): 139–45. http://dx.doi.org/10.5194/ars-14-139-2016.

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Abstract. In the power drive system of the Electric Vehicles (EVs) and Hybrid Electric Vehicles (HEVs), High Voltage (HV) cables play a major role in evaluating the EMI of the whole system. Transfer impedance (ZT) is the most commonly used performance parameter for the HV cable. To analyse and design HV cables and connectors with better shielding effectiveness (SE), appropriate measurement and simulation methods are required. In this paper, Ground Plate Method (GPM) with improvements has been proposed to measure ZT. Use of low-frequency ferrites to avoid ground-loop effects has also been inves

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Al-Saleh, Mohammed H., and Mohammad M. Al-Sharman. "Influence of carbon nanofiller geometry on EMI shielding and electrical percolation behaviors of polymer composites." Synthetic Metals 294 (April 2023): 117314. http://dx.doi.org/10.1016/j.synthmet.2023.117314.

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Hu, Peng, Zhongyuan Zhou, Jinpeng Li, et al. "Measurement Techniques for Electromagnetic Shielding Behavior of Braided-Shield Power Cables: An Overview and Comparative Study." Measurement Science Review 19, no. 5 (2019): 213–21. http://dx.doi.org/10.2478/msr-2019-0028.

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Abstract More and more EMC tests have shown that the radiated emission problems of the equipment under test mainly concentrate on the intercon- nected power cables and cable connectors. Measurement of shielding performance is a prerequisite for quantitative and qualitative evaluation of the frequency-dependent characteristic of braided-shield power cables and cable connectors. Due to the asymmetric geometric structures of these cable assemblies, compared with the coaxial and symmetrical communication cables, the commonly used transfer impedance testing methods may not be suitable. In view of t

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Kim, Jin Tae, Chan Woo Park, and Byung-Joo Kim. "A study on synergetic EMI shielding behaviors of Ni-Co alloy-coated carbon fibers-reinforced composites." Synthetic Metals 223 (January 2017): 212–17. http://dx.doi.org/10.1016/j.synthmet.2016.11.027.

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Krause, David, Werner John, and Robert Weigel. "Investigations on the magnetic field coupling of automotive high voltage systems to determine relevant parameters for an EMR-optimized designing." Advances in Radio Science 13 (March 21, 2016): 269–78. http://dx.doi.org/10.5194/ars-13-269-2016.

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Abstract. The implementation of electrical drive trains in modern vehicles is a new challenge for EMC development. This contribution depicts a variety of investigations on magnetic field coupling of automotive high-voltage (HV) systems in order to fulfil the requirements of an EMR-optimized designing. The theoretical background is discussed within the scope of current analysis, including the determination of current paths and spectral behaviour. It furthermore presents models of shielded HV cables with particular focus on the magnetic shielding efficiency. Derived findings are validated by exp

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Kim, Kwan-Woo, Woong Han, Byoung-Suhk Kim, Byung-Joo Kim, and Kay-Hyeok An. "A study on EMI shielding enhancement behaviors of Ni-plated CFs-reinforced polymer matrix composites by post heat treatment." Applied Surface Science 415 (September 2017): 55–60. http://dx.doi.org/10.1016/j.apsusc.2017.01.108.

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Cho, Sunghun, Jun Seop Lee, and Hyeonseo Joo. "Recent Developments of the Solution-Processable and Highly Conductive Polyaniline Composites for Optical and Electrochemical Applications." Polymers 11, no. 12 (2019): 1965. http://dx.doi.org/10.3390/polym11121965.

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Solution-processable conducting polymers (CPs) are an effective means for producing thin-film electrodes with tunable thickness, and excellent electrical, electrochemical, and optical properties. Especially, solution-processable polyaniline (PANI) composites have drawn a great deal of interest due to of their ease of film-forming, high conductivity up to 103 S/cm, excellent redox behaviors, processability, and scalability. In this review, basic principles, fabrication methods, and applications of solution-processable PANI composites will be discussed. In addition, recent researches on the PANI

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Merizgui, Tahar, Abdechafik Hadjadj, Mecheri Kious, and Bachir Gaoui. "Impact of Temperature Variation on the Electromagnetic Shielding Behavior of Multilayer Shield for EMC Applications." Revue des composites et des matériaux avancés 29, no. 6 (2019): 363–67. http://dx.doi.org/10.18280/rcma.290604.

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