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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Scalable, Robust, Low‐Cost, and Highly Thermally Conductive Anisotropic Nanocomposite Films for Safe and Efficient Thermal Management

Advanced Functional Materials, Journal Year: 2021, Volume and Issue: 32(8)

Published: Nov. 9, 2021

Abstract Recently, soaring developments in microelectronics raise an urgent demand for thermal management materials to tackle their “overheating” concerns. Polymer nanocomposites are promising candidates but often suffer from inability of mass production, high‐cost, poor mechanical robustness, and even flammability. Hence, it is desirable scalably fabricate low‐cost, robust polymeric that highly thermally conductive fire‐retardant ensure safe efficient management. Herein, the scalable production nacre‐like anisotropic nanocomposite films using layer‐by‐layer assembly phenylphosphonic acid@graphene nanoplatelets (PPA@GNPs)‐poly(vinyl alcohol) (PVA) layer GNPs layers, demonstrated. The PPA serves as interfacial modifiers fire retardants flammable PVA (film‐forming agent) (inexpensive nanofillers) via hydrogen‐bonding π–π stacking. resultant exhibits a high flexibility, tensile strength 259 MPa, ultrahigh in‐plane conductivity 82.4 W m ‐1 K , making effectively cool smartphone high‐power light emitting diode modules, outperforming commercial tinfoil counterparts. Moreover, as‐designed intrinsically can shield electromagnetic interference. This work offers general strategy holding great promise electronic, military, aerospace fields.

Language: Английский

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Multifunctional Wearable Silver Nanowire Decorated Leather Nanocomposites for Joule Heating, Electromagnetic Interference Shielding and Piezoresistive Sensing

Angewandte Chemie, Journal Year: 2022, Volume and Issue: 134(15)

Published: Feb. 5, 2022

Abstract Multifunctional wearable electronic devices based on natural materials are highly desirable for versatile applications of energy conversion, skin and artificial intelligence. Herein, multifunctional silver nanowire decorated leather (AgNW/leather) nanocomposites with hierarchical structures integrated visual Joule heating, electromagnetic interference (EMI) shielding piezoresistive sensing fabricated via the facile vacuum‐assisted filtration process. The AgNWs penetrate micro‐nanoporous in corium side constructing highly‐efficient conductive networks. resultant flexible mechanically strong AgNW/leather exhibit extremely low sheet resistance 0.8 Ω/sq, superior heating temperatures up to 108 °C at supplied voltage 2.0 V due efficient excellent EMI effectiveness (EMI SE) ≈55 dB outstanding ability human motion detection. This work demonstrates fabrication next‐generation intelligence, etc.

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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A review on electromagnetic shielding magnesium alloys

Journal of Magnesium and Alloys, Journal Year: 2021, Volume and Issue: 9(6), P. 1906 - 1921

Published: Nov. 1, 2021

Electromagnetic waves generated by electronic equipment are widely present in all living and working spaces because of the rapid development products frequent use digital systems. shielding is an effective method protection against these waves. Therefore, demand for materials with high electromagnetic properties has remarkably increased. Magnesium (Mg) alloys, as potential materials, have sparked great interest worldwide. This review highlights effects grain size, texture, alloying elements second phase on Mg alloys. Recent progress Mg–Zn, Mg–Al, Mg–RE other new alloys then summarised, successful design superior properties, such Mg–Zn–Y–Ce–Zr, Mg–Sn–Zn–Ca–Ce, Mg–Gd–Y–Zn–Zr Mg-based composite described. Finally, this provides insights into future applications properties.

Language: Английский

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Superhydrophobic self-extinguishing cotton fabrics for electromagnetic interference shielding and human motion detection

Journal of Material Science and Technology, Journal Year: 2022, Volume and Issue: 132, P. 59 - 68

Published: June 17, 2022

Language: Английский

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Flexible and flame-retarding phosphorylated MXene/polypropylene composites for efficient electromagnetic interference shielding

Journal of Material Science and Technology, Journal Year: 2021, Volume and Issue: 111, P. 66 - 75

Published: Dec. 1, 2021

Language: Английский

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Sustainable electromagnetic shielding graphene/nanocellulose thin films with excellent joule heating and mechanical properties via in-situ mechanical exfoliation and crosslinking with cations

Composites Science and Technology, Journal Year: 2023, Volume and Issue: 233, P. 109913 - 109913

Published: Jan. 7, 2023

Language: Английский

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Dual 3D networks of graphene derivatives based polydimethylsiloxane composites for electrical insulating electronic packaging materials with outstanding electromagnetic interference shielding and thermal dissipation performances

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 462, P. 142017 - 142017

Published: Feb. 20, 2023

Language: Английский

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Achieving absorption-type microwave shielding performance in polydimethylsiloxane/carbon nanotube sandwiched composites via regulating microwave interference effect

Composites Part A Applied Science and Manufacturing, Journal Year: 2023, Volume and Issue: 169, P. 107532 - 107532

Published: March 17, 2023

Language: Английский

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