Few-Layer Hydroxyl-Functionalized Boron Nitride Nanosheets for Nanoscale Thermal Management

2020 ◽  
Vol 3 (3) ◽  
pp. 2310-2321 ◽  
Author(s):  
Xiaofei Shi ◽  
Kanghui Wang ◽  
Jie Tian ◽  
Xianglu Yin ◽  
Bingyan Guo ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Thermal Management ◽  
Boron Nitride Nanosheets

Polybenzimidazole thermal management composites containing functionalized boron nitride nanosheets and 2D transition metal carbide MXenes

Polymer ◽  
2019 ◽  
Vol 179 ◽  
pp. 121613 ◽  
Author(s):  
Zhong-Jie Liu ◽  
Chuan-Gen Yin ◽  
Volkan Cecen ◽  
Jin-Chen Fan ◽  
Peng-Hui Shi ◽  
...  
Keyword(s):  
Transition Metal ◽  
Boron Nitride ◽  
Thermal Management ◽  
Transition Metal Carbide ◽  
Metal Carbide ◽  
Boron Nitride Nanosheets

Aqueous-Phase Exfoliation and Functionalization of Boron Nitride Nanosheets Using Tannic Acid for Thermal Management Applications

2020 ◽  
Vol 59 (37) ◽  
pp. 16273-16282 ◽  
Author(s):  
Lihua Zhao ◽  
Lei Yan ◽  
Chengmei Wei ◽  
Zhong Wang ◽  
Lichuan Jia ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Thermal Management ◽  
Aqueous Phase ◽  
Tannic Acid ◽  
Boron Nitride Nanosheets

scholarly journals Anisotropic Thermally Conductive Perfluoroalkoxy Composite with Low Dielectric Constant Fabricated by Aligning Boron Nitride Nanosheets via Hot Pressing

Polymers ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 1638 ◽  
Author(s):  
Xinru Zhang ◽  
Xinzhi Cai ◽  
Xiaoyu Xie ◽  
Changyu Pu ◽  
Xuanzuo Dong ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Dielectric Constant ◽  
Dielectric Property ◽  
Boron Nitride ◽  
Thermal Management ◽  
Hot Pressing ◽  
Heat Dissipation ◽  
Low Dielectric Constant ◽  
Boron Nitride Nanosheets ◽  
Low Dielectric

Thermal management has become a critical challenge in electronics and portable devices. To address this issue, polymer composites with high thermal conductivity (TC) and low dielectric property are urgently needed. In this work, we fabricated perfluoroalkoxy (PFA) composite with high anisotropic TC and low dielectric constant by aligning boron nitride nanosheets (BNNs) via hot pressing. We characterized the thermal stability, microstructure, in-plane and through-plane TCs, heat dissipation capability, and dielectric property of the composites. The results indicate that the BNNs–PFA composites possessed good thermal stability. When the BNNs content was higher than 10 wt %, the BNNs were well layer aligned in the PFA matrix, and the composites showed obvious anisotropic TC. The in-plane TC and through-plane TCs of 30 wt % BNNs–PFA composite were 4.65 and 1.94 W m−1 K−1, respectively. By using the composite in thermal management of high-power LED, we found that alignment of BNNs in composite significantly improves the heat dissipation capability of composite. In addition, the composites exhibited a low dielectric property. This study shows that hot pressing is a facile and low-cost method to fabricate bulk composite with anisotropic TC, which has wide applications in electronic packaging.

Sign in / Sign up

Export Citation Format

Share Document