Low Dielectric and High Thermal Conductive Phononic Crystal Nanofiber Metamaterial Film

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 23, 2025

Abstract The rapid advancement of 3D heterogeneous integration technology has created stringent requirements for the thermal conductivity low dielectric materials. However, common materials generally have conductivity, which hinders ability to simultaneously optimize signal transmission and heat dissipation in integrated systems. Here, a crystallization control strategy is proposed tackle challenge balancing high with constant. Through precise synthesis parameters, phononic crystal nanofiber (NF) metamaterial film composed boron nitride nanosheets (BNNS) crystalline polyimide (PI) bridges been successfully developed. PI bridging structure BNNS synergistically form crystal‐like inside fiber, enhancing lattice vibration facilitating transfer. Meanwhile, around fiber maintains long‐range disordered structure, hindering arrangement dipoles. synergistic effect enables NF achieve up 6.51 W/(m·k) relatively constant 2.63, thereby energy efficiency

Язык: Английский

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Enabling multifunctional bio-based waterborne polyurethane through polyphenol-mediated assembly of zirconium phosphate nanoplatelets for patternable coating

Composites Science and Technology, Год журнала: 2025, Номер unknown, С. 111178 - 111178

Опубликована: Апрель 1, 2025

Язык: Английский

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Evaluating the Thermal Conductivity of Hemp-Based Insulation

Materials, Год журнала: 2025, Номер 18(8), С. 1723 - 1723

Опубликована: Апрель 9, 2025

This study evaluates the thermal conductivity of hemp-based insulation materials, focusing on loose bulk mixtures hemp fibre and hurd. Transient Plane Source (TPS) measurements were employed to assess these with a controlled variation in fibre-to-hurd ratio density. Samples from various suppliers, including those different diameters hurd contents, tested. The results indicate conductivities ranging 0.055 0.065 W/mK, demonstrating good performance. also highlights influence sample compression conductivity, higher leading both increased density conductivity. When compared conventional materials glass wool polystyrene, exhibited approximately double However, same resistance (R-value) could be achieved by increasing thickness insulation.

Язык: Английский

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Component-Based Modulation Engineering to Improve Magnetoelectric Coupling for Self-Anticorrosion Broadband Absorption

Carbon, Год журнала: 2025, Номер unknown, С. 120325 - 120325

Опубликована: Апрель 1, 2025

Язык: Английский

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