scholarly journals Largely enhanced thermal conductivity and thermal stability of ultra high molecular weight polyethylene composites via BN/CNT synergy

RSC Advances ◽  
2019 ◽  
Vol 9 (70) ◽  
pp. 40800-40809
Author(s):  
Yiyou Guo ◽  
Changlin Cao ◽  
Fubin Luo ◽  
Baoquan Huang ◽  
Liren Xiao ◽  
...  

The carbon nanotubes (CNTs) synergistically assist boron nitride microsheets (BNs) to form a more continuous and effective thermal conduction path.

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.


2014 ◽  
Vol 2 (48) ◽  
pp. 20958-20965 ◽  
Author(s):  
Wei Yan ◽  
Yi Zhang ◽  
Huawei Sun ◽  
Siwei Liu ◽  
Zhenguo Chi ◽  
...  

Polyimide nanocomposites with boron nitride-coated multi-walled carbon nanotubes (BN-c-MWCNTs) were successfully prepared with enhanced thermal conductivity and electrical insulation.


2013 ◽  
Vol 856 ◽  
pp. 314-317 ◽  
Author(s):  
Min Li ◽  
Zhi Shen Wu

Carbon nanotubes grafted with stearyl alcohol (CNTs-SA) was used to enhance the thermal conductivities of the microcapsules. Differential Scanning Calorimeter (DSC) and thermogravimetry (TG) analysis method are employed to measure thermal properties of the prepared MicroPCM containing the grafted CNTs (MicroPCM/CNTs-SA). The results indicated the phase change temperature and latent heat of MicroPCM/CNTs-SA was 26.2°C and 47.7J/g. An increase in thermal conductivity, thermal stability of MicroPCM/CNTs-SA was observed. After 100 heating and cooling cycles, MicroPCM/CNTs-SA still had better durability and thermal stability.


2020 ◽  
Vol 1003 ◽  
pp. 173-178
Author(s):  
Chen Liu ◽  
Hao Ran Zhou ◽  
Zhen Yuan

Boron nitride (BN) was modified by silane coupling agent (KH560) and used as heat conductive filler to prepare the modified BN (BN560)/epoxy composite. The effect of the BN560 filler content on the thermal conductivity and thermal stability of the epoxy composite was studied. The results show that BN560 can be uniformly dispersed in the epoxy matrix by an ultrasonic disperser. The BN560 added can effectively improve the thermal conductivity of the epoxy composite. With the increase of BN560 content to 20 wt.%, the thermal conductivity of the composite increases accordingly to 0.27 W/(m·K), 50% higher than that of pure epoxy, and a heat conductive network is formed. The BN560 added can improve the thermal stability of the composite. With increasing BN560 content, the thermal decomposition temperature and glass transition temperature of the composite increase. The composite with the BN560 content of 20 wt.% has the weight loss of 10 wt.% at 395.12 °C and the glass transition temperature of 144.59 °C.


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