High Content of Siliconized MWCNTs and Cobalt Nanowire with E-Glass/Kenaf Fibers as Promising Reinforcement for EMI Shielding Material

Merizgui, Tahar; Hadjadj, Abdechafik; Gaoui, Bachir; Sebaey, Tamer A.; Prakash, Ved; Kious, Mecheri

doi:10.1007/s12633-020-00893-5

Cited by 20 publications

(8 citation statements)

References 23 publications

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“…Polyaniline was synthesized by a chemical oxidative technique by polymerization of aniline monomer. 29,30 4.8 g of ammonium persulfate was dissolved in 50 mL of formic acid to prepare the APS solution. Aniline monomer of 2 mL also dissolved in 50 mL of formic acid to prepare the aniline solution.…”

Section: Methodsmentioning

confidence: 99%

Electromagnetic interference shielding study in microwave and NIR regions by highly efficient Ag/ZnS and polyaniline-Ag/ZnS particles

Zahid

Shakir

Rehan

2021

Journal of Thermoplastic Composite Materials

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The chemical oxidative polymerization and co-precipitation methods were employed for the preparations of polyaniline (PANI) and silver-doped zinc sulfide (ZnS) nanoparticles to be used for electromagnetic interference (EMI) shielding. PVC-based composite films were fabricated by the incorporation of Ag/ZnS and PANI-Ag/ZnS nanoparticles. These nanoparticles were first analyzed by X-ray diffraction and zetasizer for their crystal structure and particle size. Prepared nanocomposite films were then analyzed for various properties like electrical conductivity, transmission in the near-infrared region (700 nm to 2500 nm), and EMI shielding efficiency in the microwave region (0.1 GHz to 20 GHz). These parameters were characterized by DC Conductivity, NIR spectroscopy, and vector network analyzer. It was found that with the addition of the concentration of nanoparticles, both values of conductivity and shielding efficiency improved. The highest attenuation value in 0.1 to 20 GHz reached 52.5 dB in 0.1 to 20 GHz frequency for 20 wt% PANI-Ag/ZnS and < 0.5% transmission was evaluated in the NIR region.

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Section: Methodsmentioning

confidence: 99%

Electromagnetic interference shielding study in microwave and NIR regions by highly efficient Ag/ZnS and polyaniline-Ag/ZnS particles

Zahid

Shakir

Rehan

2021

Journal of Thermoplastic Composite Materials

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“…Figure 4(B) exhibits the constitute and dimensions of sample holder. [25][26][27][28] Tables 3, 4, 5, and 6 display the attenuation loss dB at frequency range (E, F, I, and J band) in Un-modified and surface-modified epoxy HMR designations at different thickness "2, 2.5, and 3 mm." The SE of HMR composites improved with frequency and via high Ag/Ni content.…”

Section: Shielding Behaviormentioning

confidence: 99%

Electromagnetic shielding behavior of epoxy multi‐hybrid composites comprises of E‐glass fiber, Ag nanoparticle, and Ni nanosheet: A novel approach

et al. 2021

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High performance epoxy based EMI shielding hybrid composites were prepared and characterized for their mechanical, magnetic, and Electromagnetic Interference (EMI) shielding behavior. The aim of this research was to enhance the electromagnetic interference shielding effect of a nanocomposite at high frequency with good mechanical strength. The shielding effectiveness of the epoxy composite was improved via the addition of E-glass/silver nanoparticle and nickel nanosheets. The reinforcements were silane surface modified to enhance the adhesion and dispersion of reinforcements with matrix. The composites were prepared via hand layup process using glass fiber, silver nanoparticle, and Ni nanosheets followed by room temperature curing. The characterization of hybrid composites was done in accordance with ASTM standards. The results revealed that the Ag and Ni along with E-glass fiber improved conductivity, permittivity, and permeability of epoxy composite. Similarly, the mechanical behavior of nanocomposite was found to be increased for tensile, flexural, and Izod impact toughness. Moreover, a maximum wave attenuation of -48 dB was observed for 3-mm thick composite shielding material in "J" band frequency. These mechanically sound high EMI shielding lightweight polymer composites could be used as potential material for aerospace, defense, tele-communication, and satellite data transfer applications. Besides the reduction of EMI effect between electronic gadgets could improves the utility and life span of electromagnetic devices and gadgets in several engineering applications. K E Y W O R D SEMI shielding, mechanical properties, Ni nanosheet, polymer matrix composite, silver NPs | INTRODUCTIONElectromagnetic (EM) shielding effectiveness (SE) is one of the helpful solution to minimize EMI problems and to warrant the safety of the electronic systems. [1,2] Metals are utilized in EM shielding implementations because they are conductive and liable to reflect forthcoming EM waves. [3,4] While, considerable issues appear concerning

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“…The protein-based animal fibers include wool, mohair, feathers of birds, and silk. [5][6][7] But natural fiber-based polymer composites have constrained uses in modern engineering structures due to their poor performance under impact. However, natural fibers are good candidate for product weight reduction, material cost reduction, and renewability.…”

Section: Introductionmentioning

confidence: 99%

Fatigue, fracture toughness and DMA of biosilica toughened epoxy with stacked okra fiber and Al 2024‐T3 fiber metal laminate composite

Ramesh¹,

Uvaraja²,

Jayaraja

et al. 2022

Polymer Composites

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In this present study, a natural fiber-based fiber metal laminate (FML) was fabricated for various engineering applications. The primary aim of this present investigation was to study the effect of adding natural fiber along with metal and the effect of the surface-treatment process on the reinforcements on load-bearing and thermo-mechanical properties. Okra fiber woven mat, aluminum 2024-T3 foil and rice husk-derived biosilica were used as reinforcements.For surface treatment, the metal foil was sandblasted whereas the okra fiber and biosilica were silane-treated. The FML was fabricated using the vacuum bag method utilizing as-received and silane-treated reinforcements as two separate models. According to the results, the addition of Al foil and okra fiber improved the storage modulus and loss factor of about 4.2 GPa and 0.39 for surface-treated reinforcements. Similarly, maximum fracture toughness and energy release of 39.42 MPa √m and 0.76 MJ/m 2 for surface-treated EOA2 composite designation. Moreover, the addition of okra fiber and Al foil increased the fatigue life counts up to 54,266, 48,116, and 26,263 for surfacetreated EOA2 composite at 30%, 60%, and 90% of ultimate tensile stress (UTS).Such thermo-mechanical and load-bearing properties improved FMLs could be used in automotive, aircraft, drone and other industrial applications requiring high structural rigidity and load absorbing capability.

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High Content of Siliconized MWCNTs and Cobalt Nanowire with E-Glass/Kenaf Fibers as Promising Reinforcement for EMI Shielding Material

Cited by 20 publications

References 23 publications

Electromagnetic interference shielding study in microwave and NIR regions by highly efficient Ag/ZnS and polyaniline-Ag/ZnS particles

Electromagnetic interference shielding study in microwave and NIR regions by highly efficient Ag/ZnS and polyaniline-Ag/ZnS particles

Electromagnetic shielding behavior of epoxy multi‐hybrid composites comprises of E‐glass fiber, Ag nanoparticle, and Ni nanosheet: A novel approach

Fatigue, fracture toughness and DMA of biosilica toughened epoxy with stacked okra fiber and Al 2024‐T3 fiber metal laminate composite

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