Structural design underpinning self-healing materials for electromagnetic interference shielding: coupling of dynamic polymer chemistry and electrical conductivity

Meng, Yu; Liu, Tong; Jia, YongQiang; Hang, ZuSheng; Xu, JianHua; Fu, JiaJun

doi:10.1039/d3ta07416a

J. Mater. Chem. A

2024

DOI: 10.1039/d3ta07416a

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Structural design underpinning self-healing materials for electromagnetic interference shielding: coupling of dynamic polymer chemistry and electrical conductivity

Yu Meng,

Tong Liu,

YongQiang Jia

et al.

Abstract: Electromagnetic interference (EMI) shielding materials can address the troublesome problem of electromagnetic pollution, but they are inevitably subject to damage during use, severely weakening or depriving them of their inherent...

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Cited by 7 publications

References 152 publications

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Lignocellulose‐Mediated Functionalization of Liquid Metals toward the Frontiers of Multifunctional Materials

Li,

Zhu,

et al. 2024

Advanced Materials

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Lignocellulose‐mediated liquid metal (LM) composites, as emerging functional materials, show tremendous potential for a variety of applications. The abundant hydroxyl, carboxyl, and other polar groups in lignocellulose facilitate the formation of strong chemical bonds with LM surfaces, enhancing wettability and adhesion for improved interface compatibility. Beyond serving as a supportive matrix, lignocellulose can be tailored to optimize the microstructure of the composites, adapting them for diverse applications. This review comprehensively summarizes the fundamental principles and recent advancements in lignocellulose‐mediated LM composites, highlighting the advantages of lignocellulose in composite fabrication, including facile synthesis, versatile interactions, and inherent functionalities. Key modulation strategies for LMs and innovative synthesis methods for functionalized lignocellulose composites are discussed. Furthermore, the roles and structure–performance relationships of these composites in electromagnetic shielding, flexible sensors, and energy storage devices are systematically summarized. Finally, the obstacles and prospective advancements pertaining to lignocellulose‐mediated LM composites are thoroughly scrutinized and deliberated upon. This review is expected to provide basic guidance for researchers to boost the popularity of LMs in diverse applications and provide useful references for design strategies of state‐of‐the‐art LMs.

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Lignocellulose‐Mediated Functionalization of Liquid Metals toward the Frontiers of Multifunctional Materials

Li,

Zhu,

et al. 2024

Advanced Materials

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Adhesion Strategy for Cross‐Linking AgNWs/MXene Janus Membrane: Stretchable and Self‐Healing Electromagnetic Shielding and Infrared Stealth Capabilities

Bai,

Zhang,

et al. 2024

Small

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Developing lightweight polymer shielding membranes with additional physicochemical properties is of great significance for addressing the complex contemporary security demands. However, precise structural design at the molecular level remains a challenge. Herein, a unique Janus composite membrane is assembled from conductive AgNWs/MXene 1D/2D network and polyurethane elastomer (MPHEA), displaying combined superior electromagnetic shielding effectiveness (EMSE) of up to 80 dB and remarkable infrared stealth capability at a wide temperature range of room temperature to 50 °C. Moreover, the endowed chemical crosslinking in the membrane resulted in the exceptional mechanical strength, self‐healing, and superior adhesion. The maintained electromagnetic shielding (over 20 dB) even under a strain of 40% and the recovered shielding efficiency of 90% after mechanical damage and self‐healing are observed, which is attributed to the synergistic 3D polymer elastic and 1D/2D conductive network in the multi‐dimensional crosslinked MPHEA@AgNWs/MXene composite membrane. This work has represented an excellent micro‐nano structure design strategy on multifunctional electromagnetic wave manager in complex application scenario.

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A Review on MXene/Nanocellulose Composites: Toward Wearable Multifunctional Electromagnetic Interference Shielding Application

Li,

Wang,

Huang

2024

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With the rapid development of mobile communication technology and wearable electronic devices, the electromagnetic radiation generated by high‐frequency information exchange inevitably threatens human health, so high‐performance wearable electromagnetic interference (EMI) shielding materials are urgently needed. The 2D nanomaterial MXene exhibits superior EMI shielding performance owing to its high conductivity, however, its mechanical properties are limited due to the high porosity between MXene nanosheets. In recent years, it has been reported that by introducing natural nanocellulose as an organic framework, the EMI shielding and mechanical properties of MXene/nanocellulose composites can be synergically improved, which are expected to be widely used in wearable multifunctional shielding devices. In this review, the electromagnetic wave (EMW) attenuation mechanism of EMI shielding materials is briefly introduced, and the latest progress of MXene/nanocellulose composites in wearable multifunctional EMI shielding applications is comprehensively reviewed, wherein the advantages and disadvantages of different preparation methods and various types of composites are summarized. Finally, the challenges and perspectives are discussed, regarding the performance improvement, the performance control mechanism, and the large‐scale production of MXene/nanocellulose composites. This review can provide guidance on the design of flexible MXene/nanocellulose composites for multifunctional electromagnetic protection applications in the future intelligent wearable field.

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Structural design underpinning self-healing materials for electromagnetic interference shielding: coupling of dynamic polymer chemistry and electrical conductivity

Abstract: Electromagnetic interference (EMI) shielding materials can address the troublesome problem of electromagnetic pollution, but they are inevitably subject to damage during use, severely weakening or depriving them of their inherent...

Cited by 7 publications

References 152 publications

Lignocellulose‐Mediated Functionalization of Liquid Metals toward the Frontiers of Multifunctional Materials

Lignocellulose‐Mediated Functionalization of Liquid Metals toward the Frontiers of Multifunctional Materials

Adhesion Strategy for Cross‐Linking AgNWs/MXene Janus Membrane: Stretchable and Self‐Healing Electromagnetic Shielding and Infrared Stealth Capabilities

A Review on MXene/Nanocellulose Composites: Toward Wearable Multifunctional Electromagnetic Interference Shielding Application

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