Patterned liquid metal embedded in brush-shaped polymers for dynamic thermal management

Materials Horizons, Год журнала: 2023, Номер 11(2), С. 531 - 544

Опубликована: Ноя. 10, 2023

A series of patterned LM pathways are embedded in brush-shaped polymers, by combining vertically oriented graphene aerogels (VGAs) to fabricate soft elasticity thermally conductive composites for dynamic thermal management.

Язык: Английский

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Adjustable boron nitride segregated framework in epoxy resin for high performance thermal management and flame retardant applications

Composites Science and Technology, Год журнала: 2023, Номер 242, С. 110161 - 110161

Опубликована: Июль 14, 2023

Язык: Английский

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Structure, properties and applications of multi-functional thermally conductive polymer composites

Journal of Material Science and Technology, Год журнала: 2024, Номер 200, С. 141 - 161

Опубликована: Апрель 3, 2024

Язык: Английский

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Simultaneous Reduction of Bulk and Contact Thermal Resistance in High‐Loading Thermal Interface Materials Using Self‐Assembled Monolayers

Advanced Functional Materials, Год журнала: 2024, Номер 34(37)

Опубликована: Апрель 2, 2024

Abstract Thermal interface materials (TIMs) play a pivotal role in the transfer of heat from high‐temperature sources, such as CPUs, to sinks power electronics. The effectiveness grease‐type TIMs is determined by their effective thermal impedance ( R EFF ), which hinges on optimizing both specific bulk B ) and contact C resistances. Achieving concurrent optimization these resistances poses significant challenge, especially high filler loading TIMs, typically above 76 vol%. This research leverages engineering through Self‐Assembled Monolayers (SAMs) address this challenge. A substantial decrease realized 0.169 K cm 2 W −1 , tenfold enhancement compared non‐SAM treated exhibit values 2.265 . leap performance primarily ascribed reduced surface energy SAM Al O 3 leading lower particle‐to‐particle Van der Waals forces, thereby improving particle dispersion strengthening interfacial bonds. Furthermore, longer carbon chains SAMs result increased yet due chains' capacity for enhanced absorption molecular entanglement. investigation underscores significance shorter‐chain fine‐tuning resistance, highlighting crucial architecture design advanced TIMs.

Язык: Английский

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Thermal interface materials: From fundamental research to applications

SusMat, Год журнала: 2024, Номер unknown

Опубликована: Сен. 23, 2024

Abstract The miniaturization, integration, and high data throughput of electronic chips present challenging demands on thermal management, especially concerning heat dissipation at interfaces, which is a fundamental scientific question as well an engineering problem—a death problem called in semiconductor industry. A comprehensive examination interfacial resistance has been given from physics perspective 2022 Review Modern Physics . Here, we provide detailed overview materials perspective, focusing the optimization structure compositions interface (TIMs) interact/contact with source sink. First, discuss impact conductivity, bond line thickness, contact TIMs. Second, it pointed out that there are two major routes to improve transfer through interface. One reduce TIM's ( R TIM ) TIMs strategies like incorporating conductive fillers, enhancing treatment techniques. other c by improving effective contact, strengthening bonding, utilizing mass gradient alleviate vibrational mismatch between source/sink. Finally, such challenges theories, potential developments sustainable TIMs, application AI design also explored.

Язык: Английский

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Self-healing polyurethane elastomers with dynamic crosslinked networks for complex structure 3D printing

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160193 - 160193

Опубликована: Фев. 1, 2025

Язык: Английский

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Soft and Damping Thermal Interface Materials with Honeycomb‐Board‐Mimetic Filler Network for Electronic Heat Dissipation

Small, Год журнала: 2024, Номер 20(35)

Опубликована: Апрель 28, 2024

Abstract High‐power‐density electronic devices under vibrations call for soft and damping thermal interface materials (TIMs) efficient heat dissipation. However, integrating low hardness, high damping, superior transfer capability into one TIM is highly challenging. Herein, soft, thermally conductive TIMs are designed prepared by constructing a honeycomb‐board‐mimetic boron nitride nanosheet (BNNS) network in dynamic polyimine via one‐step horizontal centrifugal casting. The unique filler makes the perform through‐plane conductivity (> 7.69 W m −1 K ) uniform process. Meanwhile, hierarchical bonding of endows with compressive strength (2.16 MPa at 20% strain) excellent performance (tan δ > ≈0.3 10 −2 –10 2 Hz). resulting also exhibit electrical insulation remarkable recycling ability. Compared commercial ones, provide better dissipation (4.1 °C) high‐power 5G base station less temperature fluctuation (1.8 an automotive insulated gate bipolar transistor (IGBT) vibrations. This rational design offers viable approach to prepare effective high‐power‐density

Язык: Английский

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Highly oriented BN-based TIMs with high through-plane thermal conductivity and low compression modulus

Materials Horizons, Год журнала: 2024, Номер 11(17), С. 4064 - 4074

Опубликована: Янв. 1, 2024

In the pursuit of effective thermal management for electronic devices, it is crucial to develop insulation interface materials (TIMs) that exhibit exceptional through-plane conductivity, low resistance, and minimal compression modulus. Boron nitride (BN), given its outstanding conduction properties, has garnered significant attention as a potential material this purpose. However, previously reported BN-based composites have consistently demonstrated conductivity below 10 W m

Язык: Английский

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Grafted Alkene Chains: Triggers for Defeating Contact Thermal Resistance in Composite Elastomers

Small, Год журнала: 2023, Номер 20(2)

Опубликована: Сен. 1, 2023

Abstract The pursuit of enhancing the heat transfer performance composite elastomers as thermal interface materials (TIMs) is a compelling and timely endeavor, given formidable challenges posed by interfacial transport in domains energy science, electronic technology, etc. Despite efficacy phase change (PCMs) elastomers’ compatibility, thereby reducing contact resistance for improvement, their leakage post‐transition has impeded widespread adoption this approach. Herein, strategy proposed developing solid‐solid elastomer grafting alkene chains onto crosslink network to eliminate possibility leakage. A series characterization suggest that resulting material possesses self‐adjusting compatibility feature help reduce facilitating. investigations on adhesion strength surface reveal presence amorphous grafted alkane at facilitates easier absorption contacting solid surface, intermolecular interactions promote across‐boundary transfer. By integrating these findings with evaluation using real test vehicle, valuable insights are gained design elastomers, establishing suitability TIMs relevant fields.

Язык: Английский

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A robust bio-based polyurethane employed as surgical suture with help to promote skin wound healing

Biomaterials Advances, Год журнала: 2024, Номер 166, С. 214048 - 214048

Опубликована: Сен. 19, 2024

Язык: Английский

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