Functionalized glass fibers cloth/spherical BN fillers/epoxy laminated composites with excellent thermal conductivities and electrical insulation properties

Tang, Lin; He, Mukun; Na, Xinyu; Guan, Xiangjiu; Zhang, Ruihan; Zhang, Junliang; Gu, Junwei

doi:10.1016/j.coco.2019.08.007

Cited by 156 publications

(48 citation statements)

References 41 publications

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“…BN possesses a hexagonal crystal structure and exhibits a layer-like structure with a high aspect ratio. Such morphology makes it difficult to obtain a uniform dispersion of BN grains in a composite material, and the resulting composite loaded with BN tends to have an anisotropic thermal conductivity owing to its high aspect ratio 11 – 14 . AlN and Si 3 N 4 are easily available commercially compared to BN.…”

Section: Introductionmentioning

confidence: 99%

Improving the thermal conductivity of epoxy composites using a combustion-synthesized aggregated β-Si3N4 filler with randomly oriented grains

Shimamura

Hotta

Hyuga

et al. 2020

Sci Rep

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Electrically insulating and thermally conductive polymer matrix composites are desirable for industry applications as they improve the reliability of high-performance electronic devices, particularly via heat dissipation in devices loaded with several electronic components. In this study, an aggregated β-Si3N4 filler with randomly oriented grains was produced via combustion synthesis to improve the thermal conductivity of epoxy composites. The thermal conductivities of the prepared composites were investigated as a function of the filler content, and the values were compared to those of composites loaded with commercial β-Si3N4 (non-aggregated). Negligible difference was observed in the thermal conductivities of both types of composites when the Si3N4 content was below 40 vol%; however, above 40 vol%, the aggregated β-Si3N4 filler-loaded composites showed higher thermal conductivities than the commercial β-Si3N4-loaded composites. The aggregated β-Si3N4 filler-loaded composites exhibited isotropic thermal conductivities with a maximum value of 4.7 W m−1 K−1 at 53 vol% filler content, which is approximately 2.4 times higher than that of the commercial β-Si3N4-loaded composites, thereby suggesting that the morphology of the aggregated filler would be more efficient than that of the commonly used non-aggregated filler in enhancing the thermal conductivity of a polymer matrix composite.

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Section: Introductionmentioning

confidence: 99%

Improving the thermal conductivity of epoxy composites using a combustion-synthesized aggregated β-Si3N4 filler with randomly oriented grains

Shimamura

Hotta

Hyuga

et al. 2020

Sci Rep

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“…Tang et al reported a laminated hybrid GF/spherical h-BN/epoxy composite, made by blending-impregnation and hot compression. The as-fabricated composite exhibited considerable improvement in both vertical (3 times) and parallel directions (6 times) [81]. Table 1 summarizes the recent efforts devoted to the improvement of thermoset polymer matrices' TC.…”

Section: H-bn Within Hybrid Filler Configurationsmentioning

confidence: 99%

Recent Progress in the Study of Thermal Properties and Tribological Behaviors of Hexagonal Boron Nitride-Reinforced Composites

et al. 2020

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Ever-increasing significance of composite materials with high thermal conductivity, low thermal expansion coefficient and high optical bandgap over the last decade, have proved their indispensable roles in a wide range of applications. Hexagonal boron nitride (h-BN), a layered material having a high thermal conductivity along the planes and the band gap of 5.9 eV, has always been a promising candidate to provide superior heat transfer with minimal phonon scattering through the system. Hence, extensive researches have been devoted to improving the thermal conductivity of different matrices by using h-BN fillers. Apart from that, lubrication property of h-BN has also been extensively researched, demonstrating the effectivity of this layered structure in reduction of friction coefficient, increasing wear resistance and cost-effectivity of the process. Herein, an in-depth discussion of thermal and tribological properties of the reinforced composite by h-BN will be provided, focusing on the recent progress and future trends.

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“…[1][2][3][4][5][6] These nanomaterials exhibit unique structures and excellent properties, which have unparalleled advantages over traditional materials in many fields. [7][8][9][10][11][12][13] Since the discovery of CNTs in the 1990s, great efforts have been made toward developing low-dimensional materials. [14] BN is a lowdimensional nanomaterial composed of alternating covalent bonds of nitrogen and boron [15,16] due to the difference in electronegativity (i. e., B (2.04) < N (3.04), vs F (4.0)), the covalent bonds between nitrogen and boron have some characteristics of ionic bonds.…”

Section: Introductionmentioning

confidence: 99%

The Properties and Preparation Methods of Different Boron Nitride Nanostructures and Applications of Related Nanocomposites

Pan

Liu

et al. 2020

The Chemical Record

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Due to special non-metallic polar bond between the III group (with certain metallic properties) element boron (B) and the V group element nitrogen (N), boron nitride (BN) has unique physical and chemical properties such as strong high-temperature resistance, oxidation resistance, heat conduction, electrical insulation and neutron absorption. Its unique lamellar, reticular and tubular morphologies and physicochemical properties make it attractive in the fields of adsorption, catalysis, hydrogen storage, thermal conduction, insulation, dielectric substrate of electronic devices, radiation protection, polymer composites, medicine, etc. Therefore, the synthesis and properties of BN derived materials become the main research hotspots of lowdimensional nanomaterials. This paper reviews the synthetic methods, overall properties, and applications of BN nanostructures and nanocomposites. In addition, challenges and prospect of this kind of materials are discussed.

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Functionalized glass fibers cloth/spherical BN fillers/epoxy laminated composites with excellent thermal conductivities and electrical insulation properties

Cited by 156 publications

References 41 publications

Improving the thermal conductivity of epoxy composites using a combustion-synthesized aggregated β-Si3N4 filler with randomly oriented grains

Improving the thermal conductivity of epoxy composites using a combustion-synthesized aggregated β-Si3N4 filler with randomly oriented grains

Recent Progress in the Study of Thermal Properties and Tribological Behaviors of Hexagonal Boron Nitride-Reinforced Composites

The Properties and Preparation Methods of Different Boron Nitride Nanostructures and Applications of Related Nanocomposites

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