A novel h-BN–RGO hybrids for epoxy resin composites achieving enhanced high thermal conductivity and energy density

Huang, Tao; Zeng, Xiaoliang; Yao, Yimin; Sun, Rong; Meng, Fanling; Xu, Jianbin; Wong, Ching‐Ping

doi:10.1039/c6ra28503a

Cited by 50 publications

(35 citation statements)

References 54 publications

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“…The introduction of GS with continuous 3D network promoted the dispersion of BN and remove agglomeration. The BN/epoxy composites usually existed the agglomeration of BN which blocked the effective heat transport along the composites and weak interaction between BN and polymer matrix . The agglomeration generated serious phonon scattering among the contacts with the BN particles, which was similar to the reports in the case of SiO 2 .…”

Section: Resultssupporting

confidence: 68%

Boron nitride‐graphene sponge as skeleton filled with epoxy resin for enhancing thermal conductivity and electrical insulation

Guo

Wang

et al. 2019

Polymer Composites

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3D Graphene sponge (GS) supported boron nitride (BN) skeleton (BN@GS) was fabricated through a facile method by using ammonium sulfide under mild conditions. Then, BN@GS sponge was infiltrated by epoxy resin to prepare the composites. The microstructures of BN@GS were controlled by adjusting the mass ratio of GS to BN and the dimension of BN to obtain thermally conductive but electrically insulating polymer composites. The thermal and electrical properties of composites were investigated and the results showed that thermal conductivity of composites reached 0.588 W m−1 K−1 at a low GS loading of 0.157 wt%, which was twice as large as the BN/epoxy composites without graphene. When the mass ratio of BN to GS was 60:1 and 100:1, the electrical conductivity of the resin composites corresponded to insulator region. The 3D continuous network of GS endowed the composites with enhanced thermal conductivity at a relatively low filler loading. In addition, the introduction of BN cut off the transmission of electrons which resulted in the composites with electrical insulation. The hybrid fillers were introduced to guarantee the enhanced thermal conductivity and electrical insulation at a relatively low filler loading. The thermal conductivity of the BN@GS/epoxy composites coincide well with the surface temperature variation of the BN@GS/epoxy composites acquired from an infrared camera. The mechanical properties of BN@GS/epoxy composites improved remarkably in comparison with pure epoxy resin. POLYM. COMPOS., 40:E1600–E1611, 2019. © 2019 Society of Plastics Engineers

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Section: Resultssupporting

confidence: 68%

Boron nitride‐graphene sponge as skeleton filled with epoxy resin for enhancing thermal conductivity and electrical insulation

Guo

Wang

et al. 2019

Polymer Composites

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“…An exceptional high thermal conductivity has been reported due to the synergic effect of hybrid systems . Hybrids of graphene or graphite with MWCNT showed an important synergy and improved κ more than 120 % respect to the neat epoxy resin and 90 % respect to the composites containing individual MWCNT or graphene.…”

Section: Properties Of Epoxy Nanocompositesmentioning

confidence: 99%

“…The authors reported a thermal conductivity of 5.06 W/mK for the epoxy composites with 65 vol.% hybrids, which is 27 times higher than the neat epoxy resin. Huang et al . also fabricated an organic‐inorganic hybrid made of hexagonal boron nitride, h‐BN and reduced GO.…”

Section: Properties Of Epoxy Nanocompositesmentioning

confidence: 99%

Epoxy Nanocomposites Filled with Carbon Nanoparticles

Martin-Gallego

Yuste-Sánchez

Sánchez-Hidalgo

et al. 2018

The Chemical Record

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Over the past decades, the development of high performance lightweight polymer nanocomposites and, in particular, of epoxy nanocomposites has become one the greatest challenges in material science. The ultimate goal of epoxy nanocomposites is to extrapolate the exceptional intrinsic properties of the nanoparticles to the bulk matrix. However, in spite of the efforts, this objective is still to be attained at commercially attractive scales. Key aspects to achieve this are ultimately the full understanding of network structure, the dispersion degree of the nanoparticles, the interfacial adhesion at the phase boundaries and the control of the localization and orientation of the nanoparticles in the epoxy system. In this Personal Account, we critically discuss the state of the art and evaluate the strategies to overcome these barriers.

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“…Figure , the graphite gave an intensive peak at 26.1°and graphene at 25° which effected its (002) crystal plane that could lead to increase in d‐spacing from 3.41 to 3.56 Å, further the formation of a monolayer of graphene nanosheets have occurred. In Figure , G/BN‐20% composite contain an intensive peak that occurred at 26.7° which corresponds to (002) lattice plane of h‐BNNNS and the sharp peak was observed at 21.2° which was similar to that of graphene peak . It was concluded that the formation of the G/BN composite.…”

Section: Resultsmentioning

confidence: 86%

Graphene Supported Boron Nitride Nanosheets as Advanced Electroanalytical Performance for Rechargeable Magnesium Storage System

2020

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Graphene supported boron nitride (G/BN) nanosheets were prepared via vacuum filtration process and followed by thermal treatment at 150 °C for 2 h in an argon atmosphere. The structural analysis of G/BN materials were conducted through field emission scanning electron microscopy, energy‐dispersive X‐ray spectroscopy, X‐ray diffraction, X‐ray photoelectron spectroscopy, FT‐IR spectroscopy. The structural analysis was clearly illustrated that the prepared BN nanosheets were supported on the graphene layer. It is confirmed that the G/BN‐20% content shown round leaf‐like morphology and particle size approximately 100 nm. Further, the electroanalytical performance of G/BN materials was measured by galvanostatic charge/discharge, cyclic voltammetry, and electrochemical impedance spectroscopy studies. It was observed that the G/BN‐20% material was exhibited with a good discharge capacity (105 mAh g−1) at the current density of 25 mA g−1, which is higher capacity retention and rate capability at around 100 cycles. Due to the exceptional magnesium storage behaviour of G/BN‐20% material which is used as a cathode, has shown a strong synergistic effect.

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A novel h-BN–RGO hybrids for epoxy resin composites achieving enhanced high thermal conductivity and energy density

Abstract: In recent decades, significant attention has been focused on developing composite materials with high thermal conductivity utilizing h-BN, which has outstanding thermal conductivity.

Cited by 50 publications

References 54 publications

Boron nitride‐graphene sponge as skeleton filled with epoxy resin for enhancing thermal conductivity and electrical insulation

Boron nitride‐graphene sponge as skeleton filled with epoxy resin for enhancing thermal conductivity and electrical insulation

Epoxy Nanocomposites Filled with Carbon Nanoparticles

Graphene Supported Boron Nitride Nanosheets as Advanced Electroanalytical Performance for Rechargeable Magnesium Storage System

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