Polyaniline/Co–Cu ferrite nanocomposites for electromagnetic interference shielding in X-band

Saini, Monika; Shukla, Rajni; Sheoran, Nidhi; Singh, Satbir

doi:10.1063/1.5097079

Cited by 6 publications

(7 citation statements)

References 4 publications

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“…The highest shielding effectiveness value showed up to 35.1dB for the composites with a 20 wt% concentration of CoCuFe 2 O 4 in X-band frequency of 8–12 GHz range with a minimum thickness of 2.2 mm. 142…”

Section: Polyaniline (Pani)-based Emi Shielding Materialsmentioning

confidence: 99%

“…The highest shielding effectiveness value showed up to 35.1dB for the composites with a 20 wt% concentration of CoCuFe 2 O 4 in X-band frequency of 8-12 GHz range with a minimum thickness of 2.2 mm. 142 In another work, Hosseini et al prepared conductive polyaniline (PANI) and with core-shell structure of manganese ferrite (MnFe 2 O 4 ) nanocomposites through in situ polymerization in the presence of an oxidant such as ammonium persulfate (APS)and a surfactant or dopant such as dodecylbenzene sulfonic acid (DBSA). Negatively charged core nanoparticles were synthesized through the emulsion polymerization technique.…”

Section: Polyaniline Ferrites-based Nanocompositesmentioning

confidence: 99%

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Polyaniline-based nanocomposites for electromagnetic interference shielding applications: A review

Zahid

Anum

Siddique

et al. 2021

Journal of Thermoplastic Composite Materials

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Based on recent advancements, the emission of electromagnetic radiation has become a serious issue of electromagnetic interferences. These electromagnetic interferences comprise of various undesirable emission of radiation that can create unwanted deprivation of equipment or structure performance. If these complications remain unresolved can create extreme damage to the security operation or communication system of several electronic devices. Various studies have been made to resolve these problems. In past years, electrically conductive polyaniline has attained a unique position due to the prosperity of its features. The absorption of microwave and EMI shielding characteristics of the electrically conductive polyaniline can be described in the relation of great electrical conductivity with strong relaxation and, polarization effects due to the existence of stronger bonds or localized charges. In the present article, the advancement in electromagnetic interference shielding with the use of nanosized polyaniline particles and their derivative nanocomposites is discussed by various parameters such as the size of the particle, absorption properties, magnetic properties, reflective properties, electrical conductivities, and dielectric properties. The electromagnetic absorption performance of conducting polyaniline nanocomposites associated with dielectric nanomaterials (graphene) and magnetic materials (γ-Fe2O3) are widely discussed. The most appropriate polyaniline-based nanocomposites can be identified by this context. Due to increasing demand of electrically conductive polyaniline for shielding materials, it is considered to be review for better understanding in advancement. This article presents recent electromagnetic interference shielding materials knowledge of nanosized polyaniline and their nanocomposites as well as their possibilities and challenges.

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Section: Polyaniline (Pani)-based Emi Shielding Materialsmentioning

confidence: 99%

Section: Polyaniline Ferrites-based Nanocompositesmentioning

confidence: 99%

Polyaniline-based nanocomposites for electromagnetic interference shielding applications: A review

Zahid

Anum

Siddique

et al. 2021

Journal of Thermoplastic Composite Materials

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“…355,356 Their choice is mainly guided by their low cost, low density, high stability, saturation magnetization, permeability, resistivity, dielectric constant, adequate magnetic properties, and corrosion resistance as compared to metals and carbon. 357 Graphene nanosheets/RGO–NiFe 2 O 4 /cyanate ester composites prepared by the solution blending method exhibited a total EMI SE of ∼50 dB over X-bands with thicknesses of ∼2.7 mm following absorption as the dominant shielding mechanism. 358 The EMI shielding performance was found to follow absorption as a dominant shielding mechanism.…”

Section: Magnetic Nanomaterialsmentioning

confidence: 96%

“…Studies were conducted on several nanomaterials, such as ferromagnetic element nanoalloys, metal oxides, ferrites and their polymers and ICP-based nanocomposites in EMI shielding applications. 276–405 The choice of magnetic materials-filled ICP nanocomposites in EMI shielding applications is mainly guided by the dielectric loss, magnetic loss and impedance matching of the component(s) of the material(s) under investigation. It provides a combination of magnetic nanoparticles and ICPs that account for its additionally reduced weight, cost, enhanced flexibility and corrosion resistance, tuneability conductivity and tailorable permeability.…”

Section: Magnetic Nanomaterialsmentioning

confidence: 99%

Recent advancements in the electromagnetic interference shielding performance of nanostructured materials and their nanocomposites: a review

Srivastava

Manna

2022

J. Mater. Chem. A

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“…Table 4 shows a comparison with the state of the recent published literature dealing with the electromagnetic interference with different shielding materials. [16][17][18][19][20][21][22][46][47][48][49][50][51][52][53][54][55] The electromagnetic shielding effectiveness (ESE) can be expressed as: ESE ¼ 10 log…”

Section: Differential Scanning Calorimetry (Dsc)mentioning

confidence: 99%

Novel electromagnetic interference shield developed by gamma irradiation of strengthened WPE/WEPDM thermoplastic elastomer With carbon nanotubes

Fathy

Elnaggar

Sharaf

2022

Journal of Thermoplastic Composite Materials

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Carbon nanotubes (CNTs) have established wide attention as strengthened fillers because of their excellent several characters. Nano polymers based on thermoplastic elastomer composed of waste polyethylene (WPE)/Waste ethylene propylene diene monomer (WEPDM) blended equally 50/50 wt. % and strengthened with different concentrations of CNT (0.1, 0.3, and 0.5%) were fabricated via melt mixing. The prepared specimens were exposed to various gamma radiation doses, namely 50 and 100 kGy to evaluate the impact of radiation on the Nano polymers structure. FTIR and XRD were used to track the structure and crystallinity changes of thermoplastic elastomer with CNT filling. Mechanical features including tensile strength (TS), elongation at break (E%), modulus of elasticity (EM) and hardness (Shore D) of the unirradiated and irradiated samples were evaluated. Furthermore, the dynamic mechanical properties named storage (E′) and loss modulus as well as tan delta (δ) of the fabricated specimens were measured. TGA and also DSC monitored the thermal decomposition and the melting point alterations caused by CNT reinforcement. Electromagnetic Interference (EMI) was studied for all fabricated samples as an application of shielding for radio frequency signals. In general, all the studied parameters revealed improvements of thermoplastic elastomer properties via CNT interference. Subsequent reinforcement of CNT concentrations into WPE/WEPDM produced higher shielding for radio frequency signals. Furthermore, applied gamma radiation doses improved the shielding properties of the fabricated nanocomposites.

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Polyaniline/Co–Cu ferrite nanocomposites for electromagnetic interference shielding in X-band

Cited by 6 publications

References 4 publications

Polyaniline-based nanocomposites for electromagnetic interference shielding applications: A review

Polyaniline-based nanocomposites for electromagnetic interference shielding applications: A review

Recent advancements in the electromagnetic interference shielding performance of nanostructured materials and their nanocomposites: a review

Novel electromagnetic interference shield developed by gamma irradiation of strengthened WPE/WEPDM thermoplastic elastomer With carbon nanotubes

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