Novel Poly(m‐phenyleneisophthalamide) Dielectric Composites with Enhanced Thermal Conductivity and Breakdown Strength Utilizing Functionalized Boron Nitride Nanosheets

2019 ◽  
Vol 304 (11) ◽  
pp. 1900310
Author(s):  
Guangyu Duan ◽  
Yan Wang ◽  
Junrong Yu ◽  
Jing Zhu ◽  
Zuming Hu
Keyword(s):  
Thermal Conductivity ◽  
Boron Nitride ◽  
Breakdown Strength ◽  
Boron Nitride Nanosheets ◽  
Enhanced Thermal Conductivity

scholarly journals Simultaneously enhanced dielectric properties and through-plane thermal conductivity of epoxy composites with alumina and boron nitride nanosheets

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Zhengdong Wang ◽  
Guodong Meng ◽  
Liangliang Wang ◽  
Liliang Tian ◽  
Siyu Chen ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Dielectric Properties ◽  
Boron Nitride ◽  
Heat Dissipation ◽  
Breakdown Strength ◽  
Epoxy Composite ◽  
Dielectric Materials ◽  
Hydrogen Bond Interaction ◽  
Boron Nitride Nanosheets ◽  
Hybrid Fillers

AbstractDielectric materials with good thermal transport performance and desirable dielectric properties have significant potential to address the critical challenges of heat dissipation for microelectronic devices and power equipment under high electric field. This work reported the role of synergistic effect and interface on through-plane thermal conductivity and dielectric properties by intercalating the hybrid fillers of the alumina and boron nitride nanosheets (BNNs) into epoxy resin. For instance, epoxy composite with hybrid fillers at a relatively low loading shows an increase of around 3 times in through-plane thermal conductivity and maintains a close dielectric breakdown strength compared to pure epoxy. Meanwhile, the epoxy composite shows extremely low dielectric loss of 0.0024 at room temperature and 0.022 at 100 ℃ and 10−1 Hz. And covalent bonding and hydrogen-bond interaction models were presented for analyzing the thermal conductivity and dielectric properties.

scholarly journals Enhanced Thermal Conductivity of Polyimide Composites with Boron Nitride Nanosheets

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Ting Wang ◽  
Mengjie Wang ◽  
Li Fu ◽  
Zehui Duan ◽  
Yapeng Chen ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Boron Nitride ◽  
Boron Nitride Nanosheets ◽  
Polyimide Composites ◽  
Enhanced Thermal Conductivity
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