scholarly journals Preparation and performance evolution of enhancement polystyrene composites with graphene oxide/carbon nanotube hybrid aerogel: mechanical properties, electrical and thermal conductivity

2021 ◽  
pp. 107283
Author(s):  
Hui Xu ◽  
Guojun Song ◽  
Lina Zhang ◽  
Zetian Zhao ◽  
Zhitao Liu ◽  
...  
Materials ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 317 ◽  
Author(s):  
Guang-jie Yuan ◽  
Jie-Fei Xie ◽  
Hao-Hao Li ◽  
Bo Shan ◽  
Xiao-Xin Zhang ◽  
...  

Thermally reduced graphene oxide/carbon nanotube (rGO/CNT) composite films were successfully prepared by a high-temperature annealing process. Their microstructure, thermal conductivity and mechanical properties were systematically studied at different annealing temperatures. As the annealing temperature increased, more oxygen-containing functional groups were removed from the composite film, and the percentage of graphene continuously increased. When the annealing temperature increased from 1100 to 1400 °C, the thermal conductivity of the composite film also continuously increased from 673.9 to 1052.1 W m−1 K−1. Additionally, the Young’s modulus was reduced by 63.6%, and the tensile strength was increased by 81.7%. In addition, the introduction of carbon nanotubes provided through-plane thermal conduction pathways for the composite films, which was beneficial for the improvement of their through-plane thermal conductivity. Furthermore, CNTs apparently improved the mechanical properties of rGO/CNT composite films. Compared with the rGO film, 1 wt% CNTs reduced the Young’s modulus by 93.3% and increased the tensile strength of the rGO/CNT composite film by 60.3%, which could greatly improve its flexibility. Therefore, the rGO/CNT composite films show great potential for application as thermal interface materials (TIMs) due to their high in-plane thermal conductivity and good mechanical properties.


Carbon ◽  
2012 ◽  
Vol 50 (15) ◽  
pp. 5429-5440 ◽  
Author(s):  
Hyungu Im ◽  
Jooheon Kim

RSC Advances ◽  
2016 ◽  
Vol 6 (60) ◽  
pp. 54668-54678 ◽  
Author(s):  
Xumin Zhang ◽  
Jingyi Wang ◽  
Hongbing Jia ◽  
Biao Yin ◽  
Lifeng Ding ◽  
...  

Graphene oxide is modified by polyvinyl pyrrolidone and modified graphene oxide can remarkably improve the mechanical properties of natural rubber nanocomposite.


RSC Advances ◽  
2018 ◽  
Vol 8 (19) ◽  
pp. 10573-10581 ◽  
Author(s):  
Laiyun Wei ◽  
Xuan Fu ◽  
Mingchao Luo ◽  
Zhengtian Xie ◽  
Cheng Huang ◽  
...  

Graphene oxide (GO) and carbon nanotube (CNT) hybrid fillers were used to replace partial carbon black (CB), and GO/CNT/CB/NR composites were prepared with excellent crack growth resistance, low heat build-up and superior mechanical properties.


2009 ◽  
Vol 17 (4) ◽  
pp. 205-245 ◽  
Author(s):  
K. Prashantha ◽  
J. Soulestin ◽  
M.F. Lacrampe ◽  
P. Krawczak

Carbon nanotube reinforcement is a key emerging technology to simultaneously impart enhanced mechanical properties while adding multifunctional characteristics to polymer materials and systems. The promise of extraordinary improvement in-end use properties of polyolefin/carbon nanotube hybrid systems has spurred great interest and intensive activity in academics and industries. This review offers a comprehensive discussion of the preparation, compounding, properties and applications of such nanocomposites. The processing, dispersion and orientation of nanotubes, as well as the characterisation of physical and mechanical properties of carbon nanotube filled polyolefins are discussed. In particular the scientific principles and mechanisms in relation to the methods of manufacturing are highlighted, with an outlook towards commercial applications.


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