Ultrafine Aramid Nanofiber-Assisted Large-Area Dense Stacking of MXene Films for Electromagnetic Interference Shielding and Multisource Thermal Conversion

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(29), P. 38620 - 38630

Published: July 10, 2024

Polymers are often used as adhesives to improve the mechanical properties of flexible electromagnetic interference (EMI) shielding layered films, but introduction these insulating inevitably reduces EMI performance. Herein, ultrafine aramid nanofibers (UANF) with a diameter only 2.44 nm were binder effectively infiltrate and minimize gaps in MXene for balancing properties. Combining evaporation-induced scalable assembly assisted by blade coating, large-scale MXene/UANF films highly aligned compact stacking successfully fabricated. Compared conventional ANF larger 7.05 nm, UANF-reinforced film exhibits "brick-mortar" structure higher orientation compacter nanosheets, thus showing properties, electrical conductivity, By optimizing content, can achieve optimal tensile strength 156.9 MPa, toughness 2.9 MJ m

Language: Английский

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Absorption–Reflection–Transmission Power Coefficient Guiding Gradient Distribution of Magnetic MXene in Layered Composites for Electromagnetic Wave Absorption

Nano-Micro Letters, Journal Year: 2025, Volume and Issue: 17(1)

Published: Feb. 17, 2025

Abstract The morphological distribution of absorbent in composites is equally important with absorbents for the overall electromagnetic properties, but it often ignored. Herein, a comprehensive consideration including component regulation, layered arrangement structure, and gradient concentration was used to optimize impedance matching enhance loss. On microscale, incorporation magnetic Ni nanoparticles into MXene nanosheets (Ni@MXene) endows suitable intrinsic permittivity permeability. macroscale, Ni@MXene increases effective interaction area waves, inducing multiple reflection/scattering effects. this basis, according analysis absorption, reflection, transmission (A–R–T) power coefficients composites, constructed realize at low-concentration surface layer, loss middle interlayer microwave reflection high-concentration bottom layer. Consequently, composite (LG5-10–15) achieves complete absorption coverage X-band thickness 2.00–2.20 mm RL min −68.67 dB 9.85 GHz 2.05 mm, which 199.0%, 12.6%, 50.6% higher than non-layered, descending respectively. Therefore, work confirms importance structure improving performance broadens design high-performance materials.

Language: Английский

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Flow-Aligned Layered Polyethylene/Graphene Films for Thermal Management

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

Published: Feb. 4, 2025

Language: Английский

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Anisotropic Thermal Conductivity of 3D Printed Graphene Enhanced Thermoplastic Polyurethanes Structure toward Photothermal Conversion

Carbon, Journal Year: 2025, Volume and Issue: unknown, P. 120023 - 120023

Published: Jan. 1, 2025

Language: Английский

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Tree-inspired Bio-composites with 3D Anisotropic Thermal and Electrical Conductivities Prepared by Parallel-Engineered Graphene Integration

Composites Science and Technology, Journal Year: 2025, Volume and Issue: unknown, P. 111112 - 111112

Published: Feb. 1, 2025

Language: Английский

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Effect of Morphology and Structure of Polyethylene Fibers on Thermal Conductivity of PDMS Composites

Polymer, Journal Year: 2025, Volume and Issue: unknown, P. 128194 - 128194

Published: Feb. 1, 2025

Language: Английский

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A comparison of the corrosion inhibition performance in sulfamic acid medium between refluxed and ultrasonic extracts of rapeseed meal

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 688, P. 714 - 735

Published: Feb. 27, 2025

Language: Английский

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Stretchable Thermoplastic Polyurethane/Boron Nitride Nanosheet Fabrics with Highly Anisotropic Thermal Conductivity for Multi-scenario Passive Radiative Cooling

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

Published: March 18, 2025

Language: Английский

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Flexible and high durability Aramid Nanofiber/Ti3C2Tx MXene@CuNPs Nanocomposite Films for Superior Electromagnetic Interference Shielding

Composites Communications, Journal Year: 2024, Volume and Issue: 50, P. 102012 - 102012

Published: July 19, 2024

Language: Английский

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A Dual Gelation Strategy Under Gravity‐Enhanced Orientation to Construct Super‐Strong and Tough Bacterial Cellulose Phase Change Fiber for Wearable Heat Supply

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 11, 2024

Abstract The development of wearable heat supply textiles in cold conditions utilizing the photothermal conversion effect is crucial for advancement thermal management that do not require any power connection or other external energy input. Here, a dual gelation strategy under gravity‐enhanced orientation proposed to construct super‐strong bacterial cellulose (BC) aerogel fiber using BC as matrix material and hydroxylated carbon nanotubes (HCNT) material. Under assistance property network structure with soft–hard synergy, silanized BC/HCNT (SBT) has rich network, tensile strength up 26.0 MPa, flexibilityand knittability. Thanks enhanced backbone, after introduction phase change eicosane SBT (SBTE), SBTE achieves high enthalpy 105 J g −1 , low leakage, storage stabilityand tough mechanical properties 23.9 MPa 8.7 MJ m −3 while maintaining flexibility, knittabilityand hydrophobicity. textile woven by also exhibits long‐lasting capacity at temperatures real‐world conditions. Therefore, finely designed potential be used solar‐driven weather.

Language: Английский

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