A graphite nanoplatelet/epoxy composite with high dielectric constant and high thermal conductivity

Carbon ◽  
2013 ◽  
Vol 55 ◽  
pp. 116-125 ◽  
Author(s):  
Chao Min ◽  
Demei Yu ◽  
Jingyu Cao ◽  
Guolong Wang ◽  
Lihua Feng
2018 ◽  
Vol 6 (9) ◽  
pp. 2370-2378 ◽  
Author(s):  
Yang Liu ◽  
Cheng Zhang ◽  
Benyuan Huang ◽  
Xu Wang ◽  
Yulong Li ◽  
...  

A novel skin–core structured fluorinated MWCNT nanofiller was prepared to fabricate epoxy composite with broadband high dielectric constant and low dielectric loss.


Materials ◽  
2021 ◽  
Vol 14 (18) ◽  
pp. 5251
Author(s):  
Yutao Hao ◽  
Qihan Li ◽  
Xianhai Pang ◽  
Bohong Gong ◽  
Chengmei Wei ◽  
...  

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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