Magnetically driven hierarchically ordered carbonyl iron@SiO<sub>2</sub>/Ni@Ag/silicone rubber composite film for enhanced electromagnetic interference shielding with ultralow reflection

Chen, Teng; Cai, Jun; Gong, De; Cheng, Xiang; Liu, Peng Zheng; Zhang, Deyuan

doi:10.1039/d3tc00626c

Cited by 10 publications

(1 citation statement)

References 67 publications

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“…Composites of ferromagnetic particles and conductive polymers have potential applications in the wave-absorbing stealth technology. , Therefore, it can be expected that the composite of polyaniline with flaky FeSiAl is very likely to produce a highly efficient FeSiAl-based wave-absorbing material. In this paper, FeSiAl@PANI composites were prepared through in situ oxidative polymerization.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Microwave Absorption Properties of FeSiAl@PANI Composites

Liu,

Sun,

Yan

et al. 2023

ACS Appl. Electron. Mater.

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Composites of ferromagnetic particles and conductive polymers have potential applications in the wave-absorbing stealth technology. In this paper, FeSiAl@polyaniline (FeSiAl@ PANI) composites were prepared through in situ oxidative polymerization. Electromagnetic parameters of the FeSiAl composites were modulated by varying the aniline content. The inhomogeneous interface between amorphous PANI and FeSiAl provides interfacial polarization, charge accumulation, and defects in the PANI layer, which causes dipole polarization and conductive loss, so that multiple loss mechanisms result in the FeSiAl@PANI composites with superior absorbing properties. When 1 g of aniline monomer is added, the lowest reflection loss (RL) can be obtained for the S 1 sample at a thickness of only 1 mm with an RL min value of −37.87 dB. Radar cross-sectional (RCS) simulations using computer simulation technology (CST) for the S 1 sample showed an RCS reduction value of 31.64 dBm 2 . Therefore, the FeSiAl@PANI composite is anticipated to be a candidate material for radar stealth technology and electromagnetic absorption.

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Section: Introductionmentioning

confidence: 99%

Fabrication and Microwave Absorption Properties of FeSiAl@PANI Composites

Liu,

Sun,

Yan

et al. 2023

ACS Appl. Electron. Mater.

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Recent Advances and Future Prospects for Construction Strategies of Flexible Electromagnetic Protection Patches

Gong,

Chen,

Cui

et al. 2024

Adv Materials Technologies

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With the rapid development of morphing aircraft, increasing demands are put forward for flexible patches (FP). In addition to sufficient deformation capability and mechanical strength, FP are required for electromagnetic continuity especially at active gaps of morphing aircraft. The existing FP are developed with enhanced deformability and load‐bearing capacity, yet their limits in electromagnetic wave (EMW) absorption and electromagnetic interference (EMI) shielding cannot meet practical applications of electromagnetic protection, and their interlayer bonding also needs to be strengthened. Besides, flexible electromagnetic protection materials (FEMPM) have been developed to address electromagnetic radiation in wearable electronics and other fields, yet their deformability and mechanical properties still need to be improved. Thereon, based on reasonable structure design and fabrication methods, delicate integration of FP and FEMPM can offer a significant paradigm to construct flexible electromagnetic protection patches (FEMPP) with great potentials in engineering applications. Herein, recent advances in FP as well as FEMPM are consolidated, and detailed development in multifunctional construction of FEMPP are involved. Furthermore, challenges and developing perspectives are also discussed, aiming to inspire the relevant researches and promote development in the related fields.

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Multifunctional Flexible MXene/AgNW Composite Thin Film with Ultrahigh Conductivity Enabled by a Sandwich‐Structured Assembly Strategy

Cheng,

Cai,

Liu

et al. 2023

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Flexible composite films have attracted considerable attention due to great potential for healthcare, telecommunication, and aerospace. However, it is still challenging to achieve high conductivity and multifunctional integration, mainly due to poorly designed composite structures of these films. Herein, a novel sandwich‐structured assembly strategy is proposed to fabricate flexible composite thin films made of Ag nanowire (AgNW) core and MXene layers by combination of spray coating and vacuum filtration process. In this case, ultrathin MXene layers play crucial roles in constructing compact composite structures strongly anchored to substrate with extensive hydrogen‐bonding interactions. The resultant sandwich‐structured MXene/AgNW composite thin films (SMAFs) exhibit ultrahigh electrical conductivity (up to 27193 S cm−1), resulting in exceptional electromagnetic interference shielding effectiveness of 16 223.3 dB cm2 g−1 and impressive Joule heating performance with rapid heating rate of 10.4 °C s−1. Moreover, the uniform SMAFs can also be facilely cut into kirigami‐patterned interconnects, which indicate superior strain‐insensitive conductance even after long‐term exposure to extreme temperatures. The demonstrated strategy offers a significant paradigm to construct multifunctional composite thin films for next‐generation integrated flexible electronics with practical applications.

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Magnetically driven hierarchically ordered carbonyl iron@SiO₂/Ni@Ag/silicone rubber composite film for enhanced electromagnetic interference shielding with ultralow reflection

Abstract: Multilayered, highly ordered, and heterogeneously constructed flexible composite film can greatly reduce secondary electromagnetic pollution and maintain effective EMI shielding performances under large tensile strain.

Cited by 10 publications

References 67 publications

Fabrication and Microwave Absorption Properties of FeSiAl@PANI Composites

Fabrication and Microwave Absorption Properties of FeSiAl@PANI Composites

Recent Advances and Future Prospects for Construction Strategies of Flexible Electromagnetic Protection Patches

Multifunctional Flexible MXene/AgNW Composite Thin Film with Ultrahigh Conductivity Enabled by a Sandwich‐Structured Assembly Strategy

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Magnetically driven hierarchically ordered carbonyl iron@SiO2/Ni@Ag/silicone rubber composite film for enhanced electromagnetic interference shielding with ultralow reflection

Abstract: Multilayered, highly ordered, and heterogeneously constructed flexible composite film can greatly reduce secondary electromagnetic pollution and maintain effective EMI shielding performances under large tensile strain.

Cited by 10 publications

References 67 publications

Fabrication and Microwave Absorption Properties of FeSiAl@PANI Composites

Fabrication and Microwave Absorption Properties of FeSiAl@PANI Composites

Recent Advances and Future Prospects for Construction Strategies of Flexible Electromagnetic Protection Patches

Multifunctional Flexible MXene/AgNW Composite Thin Film with Ultrahigh Conductivity Enabled by a Sandwich‐Structured Assembly Strategy

Contact Info

Product

Resources

About

Magnetically driven hierarchically ordered carbonyl iron@SiO₂/Ni@Ag/silicone rubber composite film for enhanced electromagnetic interference shielding with ultralow reflection