Citation: Yi-lan Guo, Run-zhi Zhang, Kai Wu, Feng Chen, Qiang Fu. Preparation of Nylon MXD6/EG/CNTs Ternary Composites with Excellent Thermal Conductivity and Electromagnetic Interference Shielding Effectiveness[J]. Chinese Journal of Polymer Science, ;2017, 35(12): 1497-1507. doi: 10.1007/s10118-017-1985-7 shu

Preparation of Nylon MXD6/EG/CNTs Ternary Composites with Excellent Thermal Conductivity and Electromagnetic Interference Shielding Effectiveness

College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China

Corresponding author: Feng Chen, fengchen@scu.edu.cn Qiang Fu, qiangfu@scu.edu.cn
Received Date: 13 April 2017
Revised Date: 15 May 2017
Accepted Date: 26 May 2017

Fund Project: the National Natural Science Foundation of China 51573102the National Natural Science Foundation of China 21274095

In this article, hybrid fillers with different dimensions, namely, 2-dimensional (2-D) expanded graphite (EG) and 1-dimensional (1-D) multi-walled carbon nanotubes (CNTs), were added to aromatic nylon MXD6 matrix via melt-blending, to enhance its thermal and electrical conductivity as well as electromagnetic interference shielding effectiveness (EMI SE). For ternary composites of MXD6/EG/CNTs, the electrical conductivity reaches up nine orders of magnitude higher compared to that of the neat MXD6 sample, which turned the polymer-based composites from an insulator to a conductor, and the thermal conductivity has been enhanced by 477% compared with that of neat MXD6 sample. Meanwhile, the EMI SE of ternary composite reaches~50 dB at the overall filler loading of only 18 wt%. This work can provide guidance for the preparation of polymer composites with excellent thermal and electrical conductivity via using hybrid filler.
- Thermal and electrical conductivity,
- Electromagnetic interference shielding,
- Hybrid filler,
- Synergistic effect
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