Flexible, robust, sandwich structure polyimide composite film with alternative MXene and Ag NWs layers for electromagnetic interference shielding

Gao, Qiang; Sheng, Xianzhe; Zhang, Shuai; Chen, Junjie; Ma, Yan; Qin, Jianbin; Zhao, Yongsheng; Shi, Xuetao; Zhang, Guangcheng

doi:10.1016/j.jmst.2022.10.091

Cited by 38 publications

(6 citation statements)

References 44 publications

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“…(a) EMI shielding model of WR-MXene coating film. Comparison of (b) EMI SE ,− and (c) switchable range. ,− …”

Section: Resultsmentioning

confidence: 99%

Succulent-Inspired Implicit Structural Change for Smart “ON/OFF” Switchable and Flexible EMI Shielding Coating

Li,

Zhang

et al. 2024

ACS Appl. Mater. Interfaces

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Modern miniaturized intelligent electronics call for smart switchable and flexible electromagnetic interference (EMI) shielding material for highly precise applications. However, most switchable EMI shielding materials are based on an explicit structural change. Herein, we report a succulent-inspired smart switchable MXene (WR-MXene) coating film realized by inner implicit structural change, which benefits from the insertion of our reversible large-cavity yolk−shell biomicrospheres. The novel switchable yolk−shell biomicrospheres contain a soft N-isopropylacrylamide (PNIPAM) hydrogel core, an "ON/OFF" switchable cavity (over 30% volume fraction), and a porous polydopamine (p-PDA) shell. The yolk−shell biomicrospheres can be obtained by a facile two-step polymerization and a simple drying-dehydration treatment. Because of the "ON/OFF" switchable void space brought by the smart biomicrospheres and conductive framework of MXene, an optimized ultralight and flexible WR-MXene coating film (vWR-coating film) showed both large switchable change (over 60 dB) and extraordinary EMI shielding effectiveness, reaching 95 and over 50 dB in the whole X band (8.2−12.4 GHz). These novel reversible yolk−shell biomicrospheres and the succulent-inspired switchable coating films are promising for smart flexible wearable devices and many advanced multifunctional systems needing dynamic real-time response.

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“…(a) EMI shielding model of WR-MXene coating film. Comparison of (b) EMI SE ,− and (c) switchable range. ,− …”

Section: Resultsmentioning

confidence: 99%

Succulent-Inspired Implicit Structural Change for Smart “ON/OFF” Switchable and Flexible EMI Shielding Coating

Li,

Zhang

et al. 2024

ACS Appl. Mater. Interfaces

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“…Miao 等 [111] WPU-Ti3C2Tx/WPU-AgNWs/WPU-Ti3C2Tx 复合材料的合成过程 [110] ， ( c)TPU/PAN/Fe3O4/MXene 复合材料的合成过程 [111] Figure 5 (a) synthesis process of MXene/PVDF-HFP composite [108] , (b) synthesis process of WPU-Ti3C2Tx/WPU-AgNWs/WPU-Ti3C2Tx composite [110] , (c) synthesis process of TPU/PAN/Fe3O4/MXene composite [111] 3.…”

Section: F O R R E V I E W O N L Yunclassified

Progress in the preparation of polymer-based MXene-enhanced electromagnetic shielding composites by electrospinning

ZENG,

CAO,

HUANG

et al. 2024

Sci. Sin.-Tech.

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“…Due to their strong absorbing ability, these layered materials find extensive applications in critical fields such as military technology and precision instruments, significantly reducing secondary pollution caused by electromagnetic wave reflection [165][166][167][168]. Yu et al [169] prepared PI(polyimide)/Ti 3 C 2 Tx Mxene/AgNW(silver nanowire) composite through electrostatic spinning and a hot-press approach. Wu et al [170] obtained PPA6@NiM(magnetic PA6 microspheres)/PDMS composite using the solvent coprecipitation method.…”

Section: Layered Structurementioning

confidence: 99%

Review of Polymer-Based Composites for Electromagnetic Shielding Application

et al. 2023

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The rapid advancement of electronic communication technology has greatly aided human productivity and quality of life, but it has also resulted in significant electromagnetic pollution issues. Traditional metals and alloys are often used for electromagnetic interference (EMI) shielding due to their excellent electrical conductivity. However, they have drawbacks such as being heavy, expensive, and having low corrosion resistance, which limits their application in electromagnetic shielding. Therefore, it is crucial to develop novel EMI shielding materials. Polymers, being highly flexible, corrosion-resistant, and possessing high specific strength, are frequently employed in electromagnetic shielding materials. In this review, we firstly introduce the basic theory of electromagnetic shielding. Then, we outline the processing methods and recent developments of polymer-based electromagnetic shielding composites, including uniform-, foam-, layered-, and segregated structures. Lastly, we present the challenges and prospects for the field, aiming to provide direction and inspiration for the study of polymer-based electromagnetic shielding composite materials.

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Flexible, robust, sandwich structure polyimide composite film with alternative MXene and Ag NWs layers for electromagnetic interference shielding

Cited by 38 publications

References 44 publications

Succulent-Inspired Implicit Structural Change for Smart “ON/OFF” Switchable and Flexible EMI Shielding Coating

Succulent-Inspired Implicit Structural Change for Smart “ON/OFF” Switchable and Flexible EMI Shielding Coating

Progress in the preparation of polymer-based MXene-enhanced electromagnetic shielding composites by electrospinning

Review of Polymer-Based Composites for Electromagnetic Shielding Application

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