Effect of aminopropylisobutyl polyhedral oligomeric silsesquioxane functionalized graphene on the thermal conductivity and electrical insulation properties of epoxy composites

RSC Advances ◽  
2016 ◽  
Vol 6 (13) ◽  
pp. 10498-10506 ◽  
Author(s):  
Peisong Zong ◽  
Jifang Fu ◽  
Liya Chen ◽  
Jintao Yin ◽  
Xing Dong ◽  
...  

To obtain homogeneous dispersion and strong interfacial interaction in epoxy nanocomposites, an effective approach is proposed to prepare ApPOSS-graphene enhancement epoxy hybrids with high thermal conductivity and electrical insulating property.

RSC Advances ◽  
2014 ◽  
Vol 4 (83) ◽  
pp. 44282-44290 ◽  
Author(s):  
Jun Hou ◽  
Guohua Li ◽  
Na Yang ◽  
Lili Qin ◽  
Maryam E. Grami ◽  
...  

The fabricated surface modified boron nitride epoxy composites exhibit high thermal conductivity, superior thermal stability and good mechanical properties while retaining good electrical insulation properties.


Nanomaterials ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 1051 ◽  
Author(s):  
Xiu Wang ◽  
Zhihuai Yu ◽  
Liang Jiao ◽  
Huiyang Bian ◽  
Weisheng Yang ◽  
...  

Hexagonal boron nitride (h-BN)-based heat-spreading materials have drawn considerable attention in electronic diaphragm and packaging fields because of their high thermal conductivity and desired electrical insulation properties. However, the traditional approach to fabricate thermally conductive composites usually suffers from low thermal conductivity, and cannot meet the requirement of thermal management. In this work, novel h-BN/cellulose-nano fiber (CNF) composite films with excellent thermal conductivity in through plane and electrical insulation properties are fabricated via an innovative process, i.e., the perfusion of h-BN into porous three dimensional (3D) CNF aerogel skeleton to form the h-BN thermally conductive pathways by filling the CNF aerogel voids. When at an h-BN loading of 9.51 vol %, the thermal conductivity of h-BN/CNF aerogel perfusion composite film is 1.488 W·m−1·K−1 at through plane, an increase by 260.3%. The volume resistivity is 3.83 × 1014 Ω·cm, superior to that of synthetic polymer materials (about 109~1013 Ω·cm). Therefore, the resulting h-BN/CNF film is very promising to replace the traditional synthetic polymer materials for a broad spectrum of applications, including the field of electronics.


RSC Advances ◽  
2017 ◽  
Vol 7 (65) ◽  
pp. 40761-40766 ◽  
Author(s):  
Jin Jiang ◽  
Feixiang Liu ◽  
Kunyi Zhuang ◽  
Danqing Chen ◽  
Guohua Chen

In this work, we developed a single-step process to cast epoxy composites having a high thermal conductivity but a low electric conductivity.


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