Phase-change materials for thermal management of electronic devices

Bianco, Vincenzo; Роса, Маттиа Де; Vafai, Kambiz

doi:10.1016/j.applthermaleng.2022.118839

Cited by 78 publications

(17 citation statements)

References 129 publications

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“…Accompanied by the 5G period, miniaturization and integration are the main trend in the research of the electronic devices. Meanwhile, the requirements of higher heat dissipation have become a necessary research to ensure the safe operation of electronic devices 1–4 . Thermal conductive polymers are widely used in 5G communication, radar technology, new energy vehicles and flexible wearable electronics by reason of their high flexibility, good electrical insulation performance, lightweight, high strength, chemical resistance, low cost, and easy processability 5–10 .…”

Section: Introductionmentioning

confidence: 99%

Flexible and thermally conductive epoxy‐dispersed liquid crystal composites filled with functionalized boron nitride nanosheets

Huang

et al. 2023

Polymer Composites

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In view of the problem of heat accumulation in electronic devices, the development of new composites with high thermal conductivity (TC) is the current research focus. Nowadays, improving TC often lead to inevitable deterioration of the mechanical properties of materials. In this work, the E‐functionalized boron nitride nanosheets (f‐BNNS)/liquid crystal monomer (LCM)/Epoxy‐thiol films with high TC were prepared by using flexible epoxy‐thiol polymer as matrix and LCM and f‐BNNS as thermal fillers via high voltage orientation molding. The epoxy‐thiol polymer possessed high intrinsic TC due to the regular arrangement of molecular chains and the f‐BNNS showed favorable dispersibility because of the modification by isopropyl tri(dioctylpyrophosphate) titanate (ITDPT). The results show that TC of E‐f‐BNNS/LCM/Epoxy‐thiol films with 30 wt% f‐BNNS content achieves 1.65 W/m·K and is 511.11% higher than that of pure epoxy‐thiol polymer (0.27 W/m·K). The tensile strength and elongation at break increase to 24.9 MPa and 47.41%, respectively. The favorable results are attributed to the ordered arrangement of f‐BNNS and molecular chains, resulting from the hydrogen‐bonding interaction between OH group in f‐BNNS, LCM and epoxy‐thiol polymer. This research provides a simple and feasible method for preparing flexible epoxy polymer films with high TC.Highlights The functional BNNS was achieved by isopropyl tri(dioctylpyrophosphate) titanate. Effects of matrix thermal conductivity on films thermal conductivity are probed. High voltage orientation molding are used for preparing epoxy composite films. The films demonstrate excellent thermal conductivity and favorable tensile strength.

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Section: Introductionmentioning

confidence: 99%

Flexible and thermally conductive epoxy‐dispersed liquid crystal composites filled with functionalized boron nitride nanosheets

Huang

et al. 2023

Polymer Composites

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“…Thermal energy management is a topic with applications in several industrial fields, such as temperature regulation in green buildings, [1][2][3][4][5][6][7] prevention of overheating in electronic devices, [8][9][10][11][12] and heat and energy harvesting. [13][14][15][16][17] Various methods have been researched and employed with the goal of attaining high efficiency and a low carbon footprint in alignment with the goal of sustainability.…”

Section: Introductionmentioning

confidence: 99%

Recent Progress in Polyethylene‐enhanced Organic Phase Change Composite Materials for Energy Management

Wu,

Yeo,

Wang

et al. 2023

Chemistry An Asian Journal

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Phase Change Materials (PCMs) are utilized to regulate temperature and store thermal energy in various industries such as infrastructure, electronics, solar power, and more. However, they face several limitations, such as leakage, poor thermal properties, incompatibility, as well as high flammability. Polyethylene (PE) is one of many polymers explored to enhance the desirable properties of PCMs, due to their versatile properties such as high strength, durability, chemical resistance, and low cost. The combination of PCMs and PE can be used to create composite materials, through micro/nano-encapsulation, melt-blending, formation of composites and with proper additives. They create enhanced thermal energy storage properties and in the meantime, benefited from the mechanical properties of the PE. This review provides a concise summary of the recent developments regarding PE-enhanced PCMs and provides insights into possible topics for further investigation. We summarised enhancement methods based on commonly adopted types of PEs, such as encapsulation, melt-blending, hot pressing, extrusion, and 3D printing. We then elaborate on how these PE-PCM composites are effectively utilised for heat management applications and the potential future directions in energy-saving buildings, electronic devices, and energy storage systems.

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“…Since its discovery by Joseph Black while observing a pot of water boiling isothermally in 1762, 1 the property of latent heat has been recognised as a ubiquitous feature of all first order phase transitions. Materials utilising this property, named phase change materials (PCMs), have found various energy applications including in electronic devices, 2 cold-chain transportation, 3 and space 4 and water 5 heating. The suitability of a PCM for a given application is determined by the nature of the transition (solid–solid, solid–liquid, liquid–gas, etc.…”

Section: Introductionmentioning

confidence: 99%

Probing crystal structures of dicarbamate phase change materials to inform structural design

Piper,

Forsyth,

Kar

et al. 2023

Mater. Adv.

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Phase-change materials for thermal management of electronic devices

Cited by 78 publications

References 129 publications

Flexible and thermally conductive epoxy‐dispersed liquid crystal composites filled with functionalized boron nitride nanosheets

Flexible and thermally conductive epoxy‐dispersed liquid crystal composites filled with functionalized boron nitride nanosheets

Recent Progress in Polyethylene‐enhanced Organic Phase Change Composite Materials for Energy Management

Probing crystal structures of dicarbamate phase change materials to inform structural design

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