Universal behavior for electromagnetic interference shielding effectiveness of polymer based composite materials

Retailleau, C.; ALAA‐EDDINE, Jalal; Ndagijimana, F.; Haddad, Farid; Bayard, Bernard; Sauviac, B.; Alcouffe, Pierre; Fumagalli, Matthieu; Bounor‐Legaré, Véronique; Serghei, Anatoli

doi:10.1016/j.compscitech.2022.109351

Cited by 41 publications

(22 citation statements)

References 41 publications

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“…In addition, many polymer materials may be formed into a number of various shapes and forms and exhibit significant flexibility in the forms that they assume, and may be used as coatings, dispersions, extrusion and molding resins, pastes, powders, and the like [63,64]. There are various applications for which it would be desirable to use polymer compositions, which require materials with electrical conductivity [65,66]. However, a significant number of polymeric materials fail to be intrinsically electrically or thermally conductive enough for many of these applications [67,68].…”

Section: Resultsmentioning

confidence: 99%

Electrical and mechanical properties of catalytically-grown multi-walled carbon nanotube-reinforced epoxy composite materials

Chen

2023

Preprint

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Carbon nanotubes are excellent candidates for the development of nano-reinforced polymer composite materials. However, assurance of homogeneous dispersion, interfacial compatibility between the carbon nanotube and the polymer, and exfoliation of the aggregates of carbon nanotubes, are required for the successful integration of carbon nanotubes into nanocomposites. The present study is focused primarily upon the electrical and mechanical properties of catalytically-grown multi-walled carbon nanotube-reinforced epoxy composite materials. Particular emphasis is placed upon the effect of carbon loading on the electrical conductivity and the influence of temperature on the loss factor and modulus for the composite materials. The results indicate that the electrical properties of the composite would not be changed from those of the bulk polymer until the average distance between the carbon nanotubes is reduced such that either electron tunneling through the polymer or physical contacts may be formed. Among the challenges introduced in the fabrication of carbon nanotube-filled polymer composites is the necessity to creatively control and make use of surface interactions between carbon nanotubes and polymeric chains in order to obtain an adequate dispersion throughout the matrix without destroying the integrity of the carbon nanotubes. Frequency domain material properties are therefore limited to applications where strains are small and stress is approximately linear with strain and the strain rate. Frequency domain material properties become irrelevant if the material exhibits nonlinear elastic behavior or is subjected to large strains. Depending on the type of polymers in the matrix, above a certain temperature limit, degradation starts or cross-linking starts. The deformed elastic body possess an amount of potential energy equal to the initial amount of potential energy minus the amount of energy irreversibly dissipated. The modulus and loss factor variables of a damping material are highly dependent upon the temperature of the damping material and the vibration frequency. Because of their viscoelastic nature, the stress and strain in viscoelastic materials are not in phase, and, in fact, exhibit hysteresis. The resonant frequency is related to the modulus of the catalytically-grown multi-walled carbon nanotube-reinforced epoxy composite. Keywords: Composite materials; Electrical properties; Mechanical properties; Carbon nanotubes; Electrical conductivity; Loss modulus

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Section: Resultsmentioning

confidence: 99%

Electrical and mechanical properties of catalytically-grown multi-walled carbon nanotube-reinforced epoxy composite materials

Chen

2023

Preprint

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“…Carbon nanotubes (CNTs) exhibit an exceptional combination of mechanical, electrical and thermal properties [4][5][6][7][8][9], and, thus, are extensively used as fillers for the preparation of polymer/CNT IOP Publishing doi:10.1088/1757-899X/1254/1/012020 2 nanocomposites. Depending on the CNT content, these composites can be used in various emerging applications, including electrostatic dissipation, device shielding, energy storage, sensors and electronics [1][2][3][10][11][12][13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

“…The development of flexible electronic devices requires the use of EMI shielding materials with high flexibility, and attempts have been made to develop flexible polymer-based nanocomposites for such applications [10,[13][14][15][18][19]. Because of their high flexibility and low processing temperature, ethylene-vinyl acetate copolymer/CNT composites [28][29][30] are a good candidate for constructing flexible interface shielding structures.…”

Section: Introductionmentioning

confidence: 99%

Pre-compliance testing of the shielding effectiveness of 3D printed multiwall carbon nanotube/ethylene-vinyl acetate copolymer composites in the 1 – 7 GHz range

Deaconescu

Vatamanu

Miclăuș

et al. 2022

IOP Conf. Ser.: Mater. Sci. Eng.

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Copolymer composites with 1-, 3- and 5 % weight concentration of carbon nanotubes (CNT) with average diameters of 9.5mm were fabricated using three different printing orientations: 0°, alternative ± 45°, and alternative +0°/- 90°. Shielding effectiveness (SE) of samples of 100x100x1 mm was measured with near-field probes connected to a vector network analyser based on a pre-compliance procedure. Both electric- and magnetic-shielding properties could be investigated. Using a reference material of a recognised producer, we emphasized comparative shielding properties in the (1-7) GHz range. Low SE values were generally observed for all samples, not exceeding 12.5 dB, but they were dependent on both the printing direction and CNT wt%. The measurements indicate that frequencies larger than 7 GHz may show better shielding properties. Also, indications of the best combination between CNT concentration and printing direction were deducted.

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“…Kuang et al 17 created PLLA/MWCNT composite foams by sc-CO 2 foaming technique, getting CPC with EMI SE of 77 dB/g À1 cm 3 . Among many polymer bases, PMMA, with excellent thermal resistance and weather resistance, [18][19][20] is one of most important materials in physical foaming technique. Apart from that, the reaction between ketonic oxygen atom and CO 2 leads to powerful CO 2 storage capacity, 18,20 which contributes to foaming process.…”

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confidence: 99%

“…Carbon series conductive fillers combining with magnetic materials can exhibit higher EMI SE of CPCs. 34,35 For instance, Hongming Zhang et al 19 decorated Fe 3 O 4 on the MWCNT to get better EMI shielding result. Baowei Qiu et al 36 prepared Fe 3 O 4 /GO/carbon fiber composites, which exhibits EMI SE of 46.33 dB in X-band.…”

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confidence: 99%

Design and research of high‐performance electromagnetic interference shielding GO/NiNCs/PMMA microcellular foams

Wang

Zhou

et al. 2023

J of Applied Polymer Sci

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High performance electromagnetic (EM) interference shielding composites are of high demand due to increasing EM wave radiation pollution. In this work, GO/NiNCs/PMMA microcellular foams with different GO/NiNCs gradient and 3D conductive filler framework were fabricated by thermal reduction and supercritical CO 2 foaming process. With the crosslink of 1D NiNCs and 2D GO sheets, GO/NiNCs framework with electrical conductivity varied from 1.15 Â 10 À4 to highest 1.09 Â 10 À1 S/m is fabricated, exhibiting absorptiondominated electromagnetic interference shieling effectiveness (EMI SE) of 53.62 dB and specific EMI SE of 48.44 dB g À1 cm 3 in X-band. The density of GO/NiNCs/PMMA microcellular foams achieved lowest value of 0.623 g/cm 3 . Moreover, the foams showed excellent thermal conductivity and compressive strength of 178.76 MPa, indicating excellent application potential in aerospace and electronic field. The thermoplastic polymer matrix also indicates great potential in recycle of the foam material.

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Universal behavior for electromagnetic interference shielding effectiveness of polymer based composite materials

Cited by 41 publications

References 41 publications

Electrical and mechanical properties of catalytically-grown multi-walled carbon nanotube-reinforced epoxy composite materials

Electrical and mechanical properties of catalytically-grown multi-walled carbon nanotube-reinforced epoxy composite materials

Pre-compliance testing of the shielding effectiveness of 3D printed multiwall carbon nanotube/ethylene-vinyl acetate copolymer composites in the 1 – 7 GHz range

Design and research of high‐performance electromagnetic interference shielding GO/NiNCs/PMMA microcellular foams

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