Low dielectric and high thermal conductivity epoxy nanocomposites filled with NH2-POSS/n-BN hybrid fillers

2015 ◽  
Vol 132 (19) ◽  
pp. n/a-n/a ◽  
Author(s):  
Yalan Wu ◽  
Fang Li ◽  
Juanni Huyan ◽  
Xiaorong Zou ◽  
Ying Li
Polymers ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 426 ◽  
Author(s):  
Yunjian Wu ◽  
Xiaoxing Zhang ◽  
Ankit Negi ◽  
Jixiong He ◽  
Guoxiong Hu ◽  
...  

Polymer composites, with both high thermal conductivity and high electrical insulation strength, are desirable for power equipment and electronic devices, to sustain increasingly high power density and heat flux. However, conventional methods to synthesize polymer composites with high thermal conductivity often degrade their insulation strength, or cause a significant increase in dielectric properties. In this work, we demonstrate epoxy nanocomposites embedded with silver nanoparticles (AgNPs), and modified boron nitride nanosheets (BNNSs), which have high thermal conductivity, high insulation strength, low permittivity, and low dielectric loss. Compared with neat epoxy, the composite with 25 vol% of binary nanofillers has a significant enhancement (~10x) in thermal conductivity, which is twice of that filled with BNNSs only (~5x), owing to the continuous heat transfer path among BNNSs enabled by AgNPs. An increase in the breakdown voltage is observed, which is attributed to BNNSs-restricted formation of AgNPs conducting channels that result in a lengthening of the breakdown path. Moreover, the effects of nanofillers on dielectric properties, and thermal simulated current of nanocomposites, are discussed.


2020 ◽  
Vol 24 ◽  
pp. 100985 ◽  
Author(s):  
Rui Wang ◽  
Congzhen Xie ◽  
Shoukang Luo ◽  
Huasong Xu ◽  
Bin Gou ◽  
...  

2020 ◽  
Vol 46 (6) ◽  
pp. 8431-8437
Author(s):  
Pei Yang ◽  
Lixiang Wang ◽  
Weihua Zhao ◽  
Laixin Cai ◽  
Yongbao Feng

RSC Advances ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 1984-1991
Author(s):  
Yue Yuan ◽  
Wei Wu ◽  
Huanbo Hu ◽  
Dongmei Liu ◽  
Hui Shen ◽  
...  

The introduction of hybrid fillers in SLS technology is an effective method for the manufacture of thermally conductive polymer composites with high thermal conductivity, complex structures and good mechanical properties.


2016 ◽  
Vol 2 (5) ◽  
pp. 1500485 ◽  
Author(s):  
Xiaoliang Zeng ◽  
Lei Ye ◽  
Kun Guo ◽  
Rong Sun ◽  
Jianbin Xu ◽  
...  

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