Highly-efficient thermal management of electronic devices enabled by boron nitride-incorporated phase change material gels

Zou, Liang; Lin, Pengcheng; Zhang, Jianyang; Su, Hua; Chen, Ying

doi:10.1007/s10853-022-07872-8

Cited by 7 publications

(2 citation statements)

References 43 publications

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“…The most effective method to improve the thermal conductivity of polymer is embedded with inorganic fillers, such as aluminum oxide, boron nitride, and carbon-based materials. − Over the past decade, researchers have developed a series of methods for preparing highly thermally conductive polymer composites, such as hybrid filling of different fillers, inducing anisotropic ordered arrangement, and preconstructing three-dimensional framework structures . All of these methods aim to fabricate filler–filler conductive paths, which are demonstrated to be effective and feasible. − Kim et al used an applied electric field boron nitride (BN) aligned in one direction to increase the in-plane thermal conductivity of vertically oriented composites to 1.54 W m –1 K –1 compared to random alignment of 0.78 W m –1 K –1 when the filler amount was 20 vol % .…”

Section: Introductionmentioning

confidence: 99%

Biobased and Recyclable Epoxy Composite with High Thermal Conductivity Based on Disulfide Exchange

Sun,

Xu,

Zou

et al. 2024

ACS Appl. Polym. Mater.

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The demand for thermal management materials is growing due to the rapid development of electronics. However, most thermally conductive composites cannot be recycled after use, resulting in a significant waste of resources and environmental pollution. In this work, a recyclable and reprocessable high thermally conductive epoxy resin composite is developed by utilizing biobased raw materials epoxidized soybean oil (ESO). The recyclability and reprocessability are achieved by disulfide exchange. The thermal conductivity of the matrix is improved by adding boron nitride (BN) fillers, which are further compelled to be aligned in the matrix to fabricate a highly thermally conductive bulk epoxy composite in an oriented direction. Results reveal that a thermal conductivity of 3.01 W m −1 K −1 is achieved in the composites with aligned arrangement BN, which is increased by 32.6% compared to composites with randomly distributed filler. Moreover, due to the disulfide exchange, the matrix can be decomposed under chemical conditions, which allows for the filler to be completely separated through physical filtration for reuse, completing the closed-loop recycling of the filler. This study provides an effective and facile method for the fabrication of biobased thermal management materials and also offers paramount potential for sustainable development.

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Section: Introductionmentioning

confidence: 99%

Biobased and Recyclable Epoxy Composite with High Thermal Conductivity Based on Disulfide Exchange

Sun,

Xu,

Zou

et al. 2024

ACS Appl. Polym. Mater.

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“…Among thermal energy storage (TES) systems, phase change materials (PCMs) are the most attractive materials for improving energy utilization efficiency owing to their high thermal storage capacity, ease of operation, and transformative industrial potential [2][3][4]. PCMs have been extensively studied in recent years in the fields of solar energy harvesting, building energy efficiency, smart textiles, waste heat recovery, electronic components, and food and drug industries [5][6][7][8][9][10]. PCMs can be divided into two categories, inorganic and organic PCMs, based on their chemical composition.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Thermal Properties of Propyl Palmitate-Based Phase Change Composites with Enhanced Thermal Conductivity for Thermal Energy Storage

2023

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Phase change materials (PCMs), which can absorb and release large amounts of latent heat during phase change, have been extensively studied for heat storage and thermal management. However, technical bottlenecks regarding low thermal conductivity and leakage have hindered practical applications of PCMs. In this paper, a simple, economical, and scalable absorption polymerization technique is proposed to prepare the polymethyl methacrylate/propyl palmitate/expanded graphite (MPCM/EG) phase change composites by constructing the microencapsulated phase change materials (polymethyl methacrylate/propyl palmitate, MPCM) with core-shell structures in the three-dimensional (3D) EG networks, taking propyl palmitate as the PCM core, polymethyl methacrylate (PMMA) as the shell, and long-chain “worm-like” EG as the thermally conductive networks. This technique proved to be a more appropriate combinatorial pathway than direct absorption of MPCM via EG. The MPCM/EG composites with high thermal conductivity, high enthalpy, excellent thermal stability, low leakage, and good thermal cycle reliability were prepared. The results showed that the MPCM-80/EG-10 composite demonstrated a high thermal conductivity of 3.38 W/(m·K), a phase change enthalpy up to 152.0 J/g, an encapsulation ratio of 90.3%, outstanding thermal stability performance, and long-term thermal cycle reliability when the EG loading is 10% and propyl palmitate is 80%. This research offers an easy and efficient approach for designing and fabricating phase change composites with promising applications in diverse energy-saving fields, such as renewable energy collection, building energy conservation, and microelectronic devices thermal protection.

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Liquid metal/metal porous skeleton with high thermal conductivity and stable thermal reliability

Tan,

Zhang,

Shen

2023

J Mater Sci

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Highly-efficient thermal management of electronic devices enabled by boron nitride-incorporated phase change material gels

Cited by 7 publications

References 43 publications

Biobased and Recyclable Epoxy Composite with High Thermal Conductivity Based on Disulfide Exchange

Biobased and Recyclable Epoxy Composite with High Thermal Conductivity Based on Disulfide Exchange

Preparation and Thermal Properties of Propyl Palmitate-Based Phase Change Composites with Enhanced Thermal Conductivity for Thermal Energy Storage

Liquid metal/metal porous skeleton with high thermal conductivity and stable thermal reliability

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