Polymer composites of boron nitride nanotubes and nanosheets

Meng, Weina; Huang, Yang; Fu, Yuqiao; Wang, Zifeng; Chen, Zhi

doi:10.1039/c4tc01998a

Cited by 190 publications

(138 citation statements)

References 167 publications

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“…The copper cylinders assembly (sandwiching the TIM composite adhesive) was placed between the heating and cooling stages. After achieving steady state conditions, temperatures were noted which were used to calculate thermal contact resistances according to equations reported in [17]. The total thermal contact resistance of the coating is proportional to its bond line thickness.…”

Section: Methodsmentioning

confidence: 99%

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Effect of boron nitride addition on properties of vapour grown carbon nanofiber/rubbery epoxy composites for thermal interface applications

Raza

Westwood

Stirling

et al. 2015

Composites Science and Technology

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This work is focused on developing an epoxy-based hybrid composite using BN and VGCNF, with the main motivation of producing thermally conducting but electrically insulating composite thermal interface materials (TIMs). Various compositions of BN/VGCNF/rubbery epoxy hybrid composites were developed by 3-roll milling. The thermal conductivity of hybrid composites increases with increasing VGCNF content and electrical conductivity decreases with increasing BN content. SEM showed that BN inclusion inhibits VGCNF contacts resulting in more electrically insulating composites. Compression testing showed that BN inclusion produced stiffer composites than those produced with VGCNFs at equivalent loading. The thermal contact resistance of 6 wt.% BN/8 wt.% VGCNF/rubbery epoxy composite was 3.36 × 10 -5 m 2 .K/W at a bond line thickness of 18 m. Thermal contact resistance measurements showed that hybrid composites can offer better interfacial thermal transport at thick bond lines and this improves with increasing VGCNF content due to increased thermal conductivity imparted by VGCNF.

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Section: Methodsmentioning

confidence: 99%

“…Like carbon nanomaterials, BN can also have several nanostructures which make it an interesting filler material for polymer composites [17]. Few research articles report thermal conductivity of hybrid composites produced with BN and carbon nanomaterials.…”

Section: Introductionmentioning

confidence: 99%

Effect of boron nitride addition on properties of vapour grown carbon nanofiber/rubbery epoxy composites for thermal interface applications

Raza

Westwood

Stirling

et al. 2015

Composites Science and Technology

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show abstract

“…[178,179]. Huang et al [42,43] reported an ideal dielectric thermally conductive epoxy nanocomposite using POSS-functionalized BNNTs as fillers (Fig.…”

Section: Bn Bnns and Bnntsmentioning

confidence: 99%

A review on thermally conductive polymeric composites: classification, measurement, model and equations, mechanism and fabrication methods

Yang

Liang

et al. 2018

Adv Compos Hybrid Mater

302

124

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With the fast-developing miniaturization and integration of microelectronics packaging materials, ultrahigh-voltage electrical devices, light-emitting diodes (LEDs), and in areas which require good heat dissipation and low thermal expansion, the investigations on the polymeric composites with highly thermal conductivities and excellent thermal stabilities are urgently required, which would be beneficial to transferring the heat to the outside of the products, finally to effectively avoid substantial overheating and prolong their working life. Our article reviews recent progress in the classification, measurement methods, model and equations, mechanisms, commonly used thermally conductive fillers, and the correlative fabrication methods for the thermally conductive polymeric composites, aiming to understand and grasp how to enhance the λ value effectively. And future perspectives, focusing scientific problems and technical difficulties of the present thermally conductive polymeric composites are also described and evaluated.

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“…[3][4][5] Therefore, there is an urgent need to develop a new strategy to prepare desired materials with high thermal conductivity. Inorganic llers, such as aluminum nitride, 6,7 alumina, 8,9 or boron nitride, [1][2][3][4][5][10][11][12][13][14][15][16][17] have been added to polymer matrices to improve the thermal performance because of their high thermal conductivity and electric insulation. Hexagonal boron nitride (hBN), also called white graphite, has attracted much attention due to its high thermal conductivity, relatively lower density, and a large band gap (nearly 5.9 eV), which make it suitable for applications in thermally conductive and insulating composites.…”

Section: Introductionmentioning

confidence: 99%

Hot pressing-induced alignment of hexagonal boron nitride in SEBS elastomer for superior thermally conductive composites

Gong

Zhang

et al. 2018

RSC Adv.

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Styrene-ethylene-butylene-styrene (SEBS) composite films containing well-dispersed and highly aligned hexagonal boron nitride (hBN) platelets were achieved by a ball milling process followed by hot-pressing treatment. An ultrahigh in-plane thermal conductivity of 45 W m À1 K À1 was achievable in the SEBS composite film with 95 wt% hBN. The corresponding out-of-plane thermal conductivity was also as high. The hBN/SEBS composite film was further used to cool a CPU connected to a computer, resulting in a decrease by about 4 C in the stable temperature. Percolation thresholds over 40 wt% and 60 wt% in the hBN/SEBS composites were obtained in the in-plane and out-of-plane directions, respectively. This phenomenon has rarely been reported in polymer composites. Molecular dynamics simulations were also conducted to support this percolation threshold. The linear coefficients of the thermal expansion value of the hBN/SEBS composite with 95 wt% hBN was as low as 16 ppm K À1.This was a significant decrease compared to that of pure SEBS (149 ppm K À1). The proposed strategy provides valuable advice about the heat-transfer mechanism in polymer composites containing oriented two-dimensional materials.

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Polymer composites of boron nitride nanotubes and nanosheets

Abstract: A comprehensive review of polymer composites of BN nanotubes and nanosheets with distinguished properties.

Cited by 190 publications

References 167 publications

Effect of boron nitride addition on properties of vapour grown carbon nanofiber/rubbery epoxy composites for thermal interface applications

Effect of boron nitride addition on properties of vapour grown carbon nanofiber/rubbery epoxy composites for thermal interface applications

A review on thermally conductive polymeric composites: classification, measurement, model and equations, mechanism and fabrication methods

Hot pressing-induced alignment of hexagonal boron nitride in SEBS elastomer for superior thermally conductive composites

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