Multifunctional, Length-Tailored Hydroxyapatite Nanowire/Aramid Nanofiber Composites: Implications for Electrical Insulation Applications DOI
Yabo Cao, Zezhou Yang, Jun Li

et al.

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(17), P. 20317 - 20325

Published: Aug. 24, 2024

Modern electrical devices are increasingly miniaturized and high-powered, leading to greater demands for advanced insulating materials. Herein, multifunctional aramid nanofiber (ANF) materials were prepared by in situ generation of hydroxyapatite (HAP) nanowires with a controllable aspect ratio. The dense network structure ANF/HAP as well the interlayer interactions resulted preparation composite film high tensile strength (102.35 MPa) excellent properties (89.57 kV/mm). In particular, fire-resistant flame-retardant multilayer hot-pressed HAP/ANF paper also greatly improved due HAP. addition, this study provides theoretical reference application HAP flame retardants ideas design nanodielectric

Language: Английский

Achieving synchronously high thermal conductivity and breakdown strength in PVA modulated via multiple ordered liquid crystal domains DOI

Jingyu Di‐wu,

Wenying Zhou,

Yandong Wang

et al.

FlatChem, Journal Year: 2025, Volume and Issue: unknown, P. 100813 - 100813

Published: Jan. 1, 2025

Language: Английский

Citations

10
Construction strategies and recent advances of flexible EMI phase change composites DOI Open Access

Ruihan Yan,

Qianhui Lin,

K.-I. You

et al.

Soft Science, Journal Year: 2025, Volume and Issue: 5(1)

Published: Jan. 22, 2025

With the continuous development of small and medium-sized electronic devices, which bring convenience to people’s lives, electromagnetic wave (EMW) pollution has emerged as a significant issue. The materials with interference (EMI) shielding capabilities for protection against harmful radiation plays vital role. Currently, wide range multifunctional, lightweight EMI have been created address various environmental requirements. However, single material difficult meet requirements high-speed transmission equipment because when such devices operate at high speeds, they typically generate elevated temperatures, excessive further exacerbates heat accumulation, reducing both efficiency lifespan. Therefore, thermal management is essential lower operating temperatures ensure optimal performance. Phase change (PCMs) are known storing large amount energy, potential in management, so flexible phase composites (PCCs) emerged. This review provides detailed examination based on fillers, PCMs latest advancements developing new PCCs. Finally, we suggest some research directions PCCs, hoping contribute rapid advancement next-generation electronics, human artificial intelligence.

Language: Английский

Citations

4
A Dual Gelation Strategy Under Gravity‐Enhanced Orientation to Construct Super‐Strong and Tough Bacterial Cellulose Phase Change Fiber for Wearable Heat Supply DOI
Dong Zhang, Qianqian Liang, Tao Zhang

et al.

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

Citations

6
A state of review for graphene-based materials in preparation methods, characterization, and properties DOI
Kang Yang, Chao‐Hsin Wu, Guoqing Zhang

et al.

Materials Science and Engineering B, Journal Year: 2024, Volume and Issue: 310, P. 117698 - 117698

Published: Sept. 13, 2024

Language: Английский

Citations

5
Flexible multifunctional MXene/polyimide films with Janus structure for superior electromagnetic interference shielding DOI
Lei Wang,

Zelong Yang,

Lang Li

et al.

Advanced Composites and Hybrid Materials, Journal Year: 2024, Volume and Issue: 8(1)

Published: Dec. 6, 2024

Language: Английский

Citations

4
Intrinsic Thermal Conductivity of Polyesters with Flexible Segments in Main Chains DOI

Panpan Yang,

Yifei Wu,

Kunxin Wang

et al.

The Journal of Physical Chemistry C, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 24, 2025

Language: Английский

Citations

0
Ag‐Deposited Pitch‐Based Carbon Fiber/Silicone Composites With Enhanced Thermal Conductivity Through Reducing Interfacial Thermal Resistance DOI

Jingbo Shen,

Yakai Feng

Polymers for Advanced Technologies, Journal Year: 2025, Volume and Issue: 36(2)

Published: Feb. 1, 2025

ABSTRACT Thermal interface materials are crucial for the thermal management of modern electronic devices. The conductivity polymer‐based composites, as widely used materials, is still limited by high interfacial resistance between polymer matrix and filler. Herein, pitch‐based carbon fibers co‐modified with silane coupling agent Ag nanoparticles were developed thermally conductive fillers to prepare silicone composites purpose improving compatibility reducing resistance. Under scanning electron microscope observation, modified dispersed uniformly, they adhered a number nanoparticles. composite 20 wt% filling amount reached up 1.624 W m −1 K , which was 1.46 times higher than that unmodified fiber filled composite. also exhibited relatively heat transfer rate excellent mechanical properties. electrical insulation dielectric properties satisfied requirements use materials. This approach provided an effective strategy development in field.

Language: Английский

Citations

0
Multiscale Porous Heat Insulation Polypropylene Foam with High Infrared Absorption Performance DOI
Chenguang Yang, Ying Xu, Hai‐Yang Liu

et al.

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 18, 2025

Polypropylene (PP) foam is a potential high-temperature insulating porous material with high mechanical properties and service temperature. However, the development of multifunctional foams based on PP still faces challenges. In this study, grafting by ultraviolet (UV) radiation was successfully used to introduce ester-based groups into molecular chains. The grafted product then blended pure in specified proportion pelletized, subjected chemical foaming obtain modified rigid foams. effectively reduced melt flow rate heterogeneous nucleation during foaming, improved efficiency, promoted formation nanometer- micron-sized cells. newly introduced also absorbed near- far-infrared radiative energy; meanwhile, cells enhanced Knudsen Phonon Scattering Effects, resulting significant reduction thermal conductivity, from 186.7 65.3 mW/(m·K). Moreover, obtained exhibited well hydrophobic under complex environmental conditions. multiscale demonstrated simultaneous heat transfer coefficient, solid gas thereby providing new strategy for further reducing conductivity polymer-based achieving excellent insulation. This work realized preparation difficult-to-make foams, laying foundation diversification expanding their application areas.

Language: Английский

Citations

0
Thermal interface polymer-based composites materials: a critical review DOI

Mesum Abbas,

Athanasia Amanda Septevani,

Fitra Yurid

et al.

Multiscale and Multidisciplinary Modeling Experiments and Design, Journal Year: 2025, Volume and Issue: 8(3)

Published: Feb. 19, 2025

Language: Английский

Citations

0
Research on PVDF/BNNSs/MXene multilayer films with high energy density and thermal conductivity for dielectric capacitors DOI

Shuo Meng,

Tong Zhao, Zhijuan Wang

et al.

The Journal of Chemical Physics, Journal Year: 2025, Volume and Issue: 162(8)

Published: Feb. 25, 2025

Polyvinylidene fluoride (PVDF) has promising applications in the field of dielectric capacitors. However, its low constant and thermal conductivity limit energy storage density. To address this, three multilayer composite topologies were designed with PVDF/boron nitride nanosheets as insulation PVDF/MXene polarization layers. A performance evaluation framework based on analytic hierarchy process technique for order preference by similarity to ideal solution method identified insulation–polarization–polarization–insulation topology optimal configuration. This structure enhanced (εr/tan δ) 239.44% over pure PVDF at 103 Hz, increased 60.45%, improved breakdown strength. In addition, charge–discharge efficiency 300 MV/m reached 75%, a discharge density 6.3 J/cm3, which is 152% higher than PVDF. The design effectively integrates strengths each layer significantly enhance overall performance, demonstrating that operational research methods are practical evaluating materials guiding design.

Language: Английский

Citations

0