Lightweight multifunctional polypropylene/carbon nanotubes/carbon black nanocomposite foams with segregated structure, ultralow percolation threshold and enhanced electromagnetic interference shielding performance

2020 ◽  
Vol 193 ◽  
pp. 108116 ◽  
Author(s):  
Jiajun Ju ◽  
Tairong Kuang ◽  
Xipeng Ke ◽  
Min Zeng ◽  
Zhou Chen ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Black ◽  
Percolation Threshold ◽  
Electromagnetic Interference ◽  
Electromagnetic Interference Shielding ◽  
Nanocomposite Foams ◽  
Segregated Structure

scholarly journals Electromagnetic Interference Shielding Efficiency in the Range 8.2-12.4 GHz of Polymer Composites with Dispersed Carbon Nanoparticles

2011 ◽  
Vol 14 (1) ◽  
pp. 55 ◽  
Author(s):  
Anna V. Gubarevich ◽  
Kazuki Komoriya ◽  
Osamu Odawara
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Black ◽  
Polymer Composites ◽  
Electromagnetic Interference ◽  
Carbon Nanoparticles ◽  
Hot Press ◽  
Frequency Range ◽  
Electromagnetic Interference Shielding ◽  
X Band ◽  
Graphite Nanoparticles

In the present work, electromagnetic interference shielding properties of polymer composites with dispersed cup-stacked carbon nanotubes, graphite nanoparticles and carbon black were investigated. The polymer composites with carbon nanoparticles content from 1 to 5 w% were successfully prepared by the coagulation method, and composite sheets with thickness from 0.25 to 0.77 mm were formed by the hot press technique. The electromagnetic interference shielding efficiency measured in the frequency range of 8.2~12.4 GHz (X-band) of cup-stacked carbon nanotubes/polymer composite was considerably higher than that of carbon black and graphite nanoparticles polymer composites at the same contents of carbon nanoparticles, and contribution of absorption to the shielding efficiency was found to be higher than that of reflection.

Electrically conductive and electromagnetic interference shielding of polyethylene composites with devisable carbon nanotube networks

2015 ◽  
Vol 3 (36) ◽  
pp. 9369-9378 ◽  
Author(s):  
Li-Chuan Jia ◽  
Ding-Xiang Yan ◽  
Cheng-Hua Cui ◽  
Xin Jiang ◽  
Xu Ji ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Electromagnetic Interference ◽  
Electromagnetic Interference Shielding ◽  
Electrically Conductive ◽  
Carbon Nanotube Networks ◽  
Emi Se ◽  
Segregated Structure ◽  
Polyethylene Composites

A segregated structure results in an EMI SE up to 46.4 dB in CNT/polyethylene composites with only 5 wt% CNTs.

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