Advances and mechanisms in polymer composites toward thermal conduction and electromagnetic wave absorption

Science Bulletin, Journal Year: 2023, Volume and Issue: 68(11), P. 1195 - 1212

Published: May 2, 2023

Language: Английский

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Morphology controllable urchin-shaped bimetallic nickel-cobalt oxide/carbon composites with enhanced electromagnetic wave absorption performance

Journal of Material Science and Technology, Journal Year: 2022, Volume and Issue: 148, P. 250 - 259

Published: Dec. 29, 2022

Language: Английский

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3D Printed Integrated Gradient-Conductive MXene/CNT/Polyimide Aerogel Frames for Electromagnetic Interference Shielding with Ultra-Low Reflection

Nano-Micro Letters, Journal Year: 2023, Volume and Issue: 15(1)

Published: Feb. 8, 2023

Construction of advanced electromagnetic interference (EMI) shielding materials with miniaturized, programmable structure and low reflection are promising but challenging. Herein, an integrated transition-metal carbides/carbon nanotube/polyimide (gradient-conductive MXene/CNT/PI, GCMCP) aerogel frame hierarchical porous gradient-conductivity has been constructed to achieve EMI ultra-low reflection. The gradient-conductive structures obtained by continuous 3D printing MXene/CNT/poly (amic acid) inks different CNT contents, where the slightly conductive top layer serves as EM absorption highly bottom layer. In addition, could extend dissipation path dissipate multiple reflections. Consequently, GCMCP frames exhibit excellent average efficiency (68.2 dB) (R = 0.23). Furthermore, miniaturized can be used gaskets effectively block wireless power transmission, which shows a prosperous application prospect in defense industry aerospace.

Language: Английский

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Carbon‐Based Radar Absorbing Materials toward Stealth Technologies

Advanced Science, Journal Year: 2023, Volume and Issue: 10(32)

Published: Sept. 21, 2023

Abstract Stealth technology is used to enhance the survival of military equipment in field surveillance, as it utilizes a combination techniques render itself undetectable by enemy radar systems. Radar absorbing materials (RAMs) are specialized reduce reflection (or absorption) signals provide stealth capability, which core component passive countermeasures applications. The properties RAMs can be optimized adjusting their composition, microstructure, and surface geometry. Carbon‐based present promising approach for fabrication ultrathin, versatile, high‐performance due large specific area, lightweight, excellent dielectric properties, high electrical conductivity, stability under harsh conditions. This review begins with brief history an introduction electromagnetic waves, systems, materials. followed discussion recent research progress carbon‐based RAMs, including carbon blacks, fibers, nanotubes, graphite, graphene, MXene, along in‐depth examination principles strategies on attenuation characteristics. Hope this will offer fresh perspectives design thereby fostering deeper fundamental understanding promoting practical

Language: Английский

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Design and advanced manufacturing of electromagnetic interference shielding materials

Materials Today, Journal Year: 2023, Volume and Issue: 66, P. 245 - 272

Published: April 10, 2023

Electromagnetic interference (EMI) shielding is critical in electronic applications. However, the currently available EMI materials are restricted customizability and application flexibility. Recent advances manufacturing technologies have provided a unique path to achieve custom creation of solutions. A successful example additive (AM), which has enabled high design freedom, efficient performance regulation, multifunctionality simultaneously into fabricated shields, offering an opportunity start revolution field shielding. In this review, we summarize latest AM materials, aiming provide deep understanding connection between raw methods, considerations, performances shields. We first introduce mechanism subsequently focusing on characteristics representative methods as-created Based requirements create application-oriented solutions, these also critically compared. Thereafter, present state-of-the-art considerations shields examine pivotal roles realizing designs. conclude by discussing future research directions, at motivating use developments

Language: Английский

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Construction of Self-Assembly Based Tunable Absorber: Lightweight, Hydrophobic and Self-Cleaning Properties

Nano-Micro Letters, Journal Year: 2023, Volume and Issue: 15(1)

Published: May 28, 2023

Although multifunctional aerogels are expected to be used in applications such as portable electronic devices, it is still a great challenge confer multifunctionality while maintaining their inherent microstructure. Herein, simple method proposed prepare NiCo/C with excellent electromagnetic wave absorption properties, superhydrophobicity, and self-cleaning by water-induced NiCo-MOF self-assembly. Specifically, the impedance matching of three-dimensional (3D) structure interfacial polarization provided CoNi/C well defect-induced dipole primary contributors broadband absorption. As result, prepared have width 6.22 GHz at 1.9 mm. Due presence hydrophobic functional groups, improve stability humid environments obtain hydrophobicity large contact angles > 140°. This aerogel has promising absorption, resistance water or environments.

Language: Английский

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External field-assisted techniques for polymer matrix composites with electromagnetic interference shielding

Science Bulletin, Journal Year: 2023, Volume and Issue: 68(17), P. 1938 - 1953

Published: Aug. 1, 2023

Language: Английский

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Heterostructured CoFe@N-doped carbon porous polyhedron for efficient microwave absorption

Nano Research, Journal Year: 2022, Volume and Issue: unknown

Published: Dec. 23, 2022

Language: Английский

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Top-down construction strategy toward sustainable cellulose composite paper with tunable electromagnetic interference shielding

Materials Today Physics, Journal Year: 2023, Volume and Issue: 31, P. 100962 - 100962

Published: Jan. 7, 2023

Language: Английский

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Highly permeable and ultrastretchable E-textiles with EGaIn-superlyophilicity for on-skin health monitoring, joule heating, and electromagnetic shielding

Nano Energy, Journal Year: 2023, Volume and Issue: 108, P. 108194 - 108194

Published: Jan. 9, 2023

Language: Английский

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