Ladder-structured boron nitride nanosheet skeleton in flexible polymer films for superior thermal conductivity

Dielectric materials with high thermal conductivity and outstanding dielectric properties are highly desirable for advanced electronics. However, simultaneous integration of those superior properties for a material remains a daunting challenge. Here, a multifunctional epoxy composite is fulfilled by incorporation of boron nitride nanosheets (BNNSs) and mesoporous silica coated multi-walled carbon nanotubes (MWCNTs@mSiO2). Owing to the effective establishment of continuous thermal conductive network, the obtained BNNSs/MWCNTs@mSiO2/epoxy composite exhibits a high thermal conductivity of 0.68 W m−1 K−1, which is 187% higher than that of epoxy matrix. In addition, the introducing of mesoporous silica dielectric layer can screen charge movement to shut off leakage current between MWCNTs, which imparts BNNSs/MWCNTs@mSiO2/epoxy composite with high dielectric constant (8.10) and low dielectric loss (<0.01) simultaneously. It is believed that the BNNSs/MWCNTs@mSiO2/epoxy composites with admirable features have potential applications in modern electronics.

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Quasi‐Isotropically Thermal Conductive, Highly Transparent, Insulating and Super‐Flexible Polymer Films Achieved by Cross Linked 2D Hexagonal Boron Nitride Nanosheets

Small ◽

10.1002/smll.202101409 ◽

2021 ◽

pp. 2101409

Author(s):

Lulu An ◽

Rong Gu ◽

Bo Zhong ◽

Jilin Wang ◽

Junyan Zhang ◽

...

Keyword(s):

Boron Nitride ◽

Polymer Films ◽

Hexagonal Boron Nitride ◽

Boron Nitride Nanosheets ◽

Flexible Polymer

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Boron nitride nanosheet nanofluids for enhanced thermal conductivity

Nanoscale ◽

10.1039/c8nr00651b ◽

2018 ◽

Vol 10 (27) ◽

pp. 13004-13010 ◽

Cited By ~ 28

Author(s):

Xiao Hou ◽

Mengjie Wang ◽

Li Fu ◽

Yapeng Chen ◽

Nan Jiang ◽

...

Keyword(s):

Thermal Conductivity ◽

Boron Nitride ◽

High Thermal Conductivity ◽

Boron Nitride Nanosheet ◽

Water Based ◽

Enhanced Thermal Conductivity

In this work, we focus on the preparation of water-based high thermal conductivity fluids by adding BNNSs.

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Fabrication of Highly Oriented Hexagonal Boron Nitride Nanosheet/Elastomer Nanocomposites with High Thermal Conductivity

Small ◽

10.1002/smll.201402569 ◽

2014 ◽

Vol 11 (14) ◽

pp. 1655-1659 ◽

Cited By ~ 186

Author(s):

Zhiqiao Kuang ◽

Yulong Chen ◽

Yonglai Lu ◽

Li Liu ◽

Shui Hu ◽

...

Keyword(s):

Thermal Conductivity ◽

Boron Nitride ◽

Hexagonal Boron Nitride ◽

High Thermal Conductivity ◽

Boron Nitride Nanosheet

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Formation and Structural Characteristic of Perpendicularly Aligned Boron Nitride Nanosheet Bridges in Polymer/Boron Nitride Composite Film and Its Thermal Conductivity

Japanese Journal of Applied Physics ◽

10.1143/jjap.50.01bj05 ◽

2011 ◽

Vol 50 ◽

pp. 01BJ05 ◽

Cited By ~ 6

Author(s):

Hong-Baek Cho ◽

Tadachika Nakayama ◽

Tsuneo Suzuki ◽

Satoshi Tanaka ◽

Weihua Jiang ◽

...

Keyword(s):

Thermal Conductivity ◽

Boron Nitride ◽

Composite Film ◽

Structural Characteristic ◽

Boron Nitride Nanosheet

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High thermal conductivity property of polyamide-imide/boron nitride composite films by doping boron nitride quantum dots

Journal of Materials Chemistry C ◽

10.1039/c9tc04381k ◽

2019 ◽

Vol 7 (44) ◽

pp. 13896-13903 ◽

Cited By ~ 3

Author(s):

Shuaishuai Zhou ◽

Tongle Xu ◽

Fang Jiang ◽

Na Song ◽

Liyi Shi ◽

...

Keyword(s):

Thermal Conductivity ◽

Quantum Dots ◽

Boron Nitride ◽

Composite Film ◽

Self Assembly ◽

Composite Films ◽

Conductivity Property ◽

Assembly Method ◽

Boron Nitride Nanosheet ◽

Evaporation Induced Self Assembly

In this study, we report a flexible polyamide-imide (PAI)/boron nitride nanosheet (BNNS) composite film with improved thermal conductivity by doping boron nitride quantum dots (BNQDs) using an evaporation-induced self-assembly method.

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