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Electromagnetic shielding performance research of composite metal plating carbon nanotubes
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School of Materials Science and Engineering, Kunming University of Science and Technology

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    Abstract:

    Carbon nanotubes(CNTs) coated with metals will show further improvement of electromagnetic shielding performance,due to the composite effect of CNTs and metal coatings. In this paper, Ni-coated CNTs (Ni-CNTs)were firstly prepared with a novel electroless plating method assisted with ultrasonic spray atomization, and then silver coated Ni-CNTs(Ni/Ag-CNTs) and copper coated Ni-CNTs(Ni/Cu-CNTs) were prepared respectively by electroless plating or coprecipitation. The obtained composite powders were characterized by TEM、FESEM and XRD. The Ni-CNTs showed continuous and uniform nickel layers on highly dispersed CNTs,and both the Ni/Ag-CNTs and Ni/Cu-CNTs composite powders showed the morphology of Ni-CNTs embedded in silver or copper particles. The multi-metal coated CNTs showed significant improvement of electromagnetic shielding properties, and the shielding effectiveness of Ni/Ag-CNTs, Ni/Cu-CNTs and Ni-CNTs was 89.34 dB, 72.21 dB and 55.62 dB, respectively.

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[Zhao Qi, Liu Yichun. Electromagnetic shielding performance research of composite metal plating carbon nanotubes[J]. Rare Metal Materials and Engineering,2019,48(1):249~253.]
DOI:10.12442/j. issn.1002-185X.20170361

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History
  • Received:May 03,2017
  • Revised:August 15,2017
  • Adopted:September 11,2017
  • Online: February 18,2019
  • Published: