Stretchable Wrinkle-Structured Liquid-Metal Sandwich Film Enables Strain-Insensitive Electromagnetic Shielding and Joule Heating

Materials Horizons, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Stretchable electromagnetic interference (EMI) shields with strain-insensitive EMI shielding and Joule heating performances are highly desirable to be integrated wearable electronics. To explore the possibility of applying geometric design in elastomeric liquid metal (LM) composites fully investigate influence LM geometry on stretchable heating, multifunctional wrinkle-structured LM/Ecoflex sandwich films excellent stretchability developed. The denser wrinkle enables not only better electrical conduction, higher effectiveness (SE) steady-state temperature, but also enhanced strain-stable far-field/near-field performance Joule-heating capability. More strikingly, compared most previously reported or electric heaters, densely wrinkled film could achieve multidirectional behavior slightly strain-enhanced strain-invariant SE under stretching parallel perpendicular field EM waves, as well show ideal over a larger strain range 250%. current findings suggest an effective strategy for developing LM-based properties.

Language: Английский

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Ultrathin and flexible carbonized MXene@PAN/Ni films with alternating multilayered structure for superior EMI Shielding, Joule heating and mechanical performance

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159777 - 159777

Published: Jan. 1, 2025

Language: Английский

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Filler-free cellulose nanofiber composite papers with excellent mechanical properties for efficient electromagnetic interference shielding

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: 302, P. 140562 - 140562

Published: Jan. 31, 2025

Language: Английский

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Electrospray and Assembly of PEDOT:PSS on Silver Nanowires for Multifunctional Stretchable Electronic Membranes

ACS Applied Electronic Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 10, 2025

Language: Английский

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Asymmetric Gradient Porous Fabric with Dynamically Tunable Thermal Management and Electromagnetic Interference Shielding via Delayed Phase Separation

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 21, 2025

Abstract The rapid development of global urbanization has exacerbated the urban heat island effect and electromagnetic radiation pollution. However, existing fabrics fail to provide both effective personal thermal management interference (EMI) shielding. To address this challenge, an asymmetric gradient porous fabric (AGPF) is developed using a delayed evaporation‐induced phase separation strategy. AGPF consists polystyrene‐block‐poly(ethylene‐ran‐butylene)‐block‐polystyrene (SEBS) transversely oriented liquid metal (LM) networks with wrinkled structures at bottom. Due complete sedimentation metal, SEBS maintains excellent solar reflectivity 93.9% atmospheric window infrared emissivity 94.7%. Upon activation by pre‐stretching, LM imparts high electrical conductivity enhanced stretchability AGPF, resulting in EMI shielding effectiveness 80.6 dB heating performance. Outdoor cooling tests further confirmed that achieves sub‐ambient ≈9.5 °C. Moreover, exhibits dynamically tunable performance across strain range 0% 200%, adapting complex outdoor environments. design provides advanced solution protect individuals from dual threats posed effects

Language: Английский

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Rheology of ethylene-vinyl acetate composites tuned by crosslinked rubber particles and carbon nanotubes

Polymer, Journal Year: 2025, Volume and Issue: unknown, P. 128400 - 128400

Published: April 1, 2025

Language: Английский

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Dual Dynamic Network Cross-Linked Recyclable, Self-Healing Biobased Elastomer with Electromagnetic Shielding and Photothermal Conversion Properties

ACS Applied Polymer Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 15, 2025

Language: Английский

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PEDOT:PSS/XNBR films for low-temperature stretchable electromagnetic interference shielding

Composites Communications, Journal Year: 2024, Volume and Issue: 50, P. 102029 - 102029

Published: Aug. 5, 2024

Language: Английский

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Robust Multifunctional Films with Excellent EMI Shielding, Anti‐Peeling, and Joule Heating Performances Enabled by an Encapsulated Highly Conductive Fabric Strategy

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 27, 2024

Abstract Recently, the issue of electromagnetic pollution has become increasingly prominent. Flexible polymer films with various conductive fillers are preferred to address this problem due their highly efficient and durable interference (EMI) shielding performance. However, applications restricted by unbalanced insufficient wave absorption capabilities, as well weak interlayer bonding force. In work, robust flexible multifunctional AgNW/MXene/NiCo‐C (AMN) fabricated hierarchical casting assembly an encapsulated fabric strategy. The synergistic effect conductive‐absorption integrated sandwich core encapsulation layer collaborate provide excellent absorption‐dominated EMI (EMI SE max = 89.12 dB ultralow reflectivity value 0.19) Joule heating (a high temperature 103.5 °C at 4.5 V) performances. Besides, AMN embedded fabrics a reinforcement structure achieved enhanced peel (1.97 N mm −1 ) tensile (7.85 MPa) strengths through interface enhancement process (plasma pre‐immersion treatments). conclusion, paper proposes feasible paradigm prepare films, which demonstrate tremendous potential for in wearable electronics aerospace fields.

Language: Английский

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Interfacial distribution of PMMA-grafted MWCNTs in immiscible blends for improved electrical conductivity

Composites Communications, Journal Year: 2024, Volume and Issue: 50, P. 101997 - 101997

Published: July 14, 2024

Language: Английский

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