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Orthogonal pattern of spinnable multiwall carbon nanotubes for electromagnetic interference shielding effectiveness

Title
Orthogonal pattern of spinnable multiwall carbon nanotubes for electromagnetic interference shielding effectiveness
Author
김선정
Keywords
Electromagnetic interference; Spinnable multiwall carbon nanotubes; Orthogonal pattern; Relative permittivity; X-band frequency range
Issue Date
2019-11
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
CARBON, v. 152, Page. 33-39
Abstract
The need for thin and lightweight electromagnetic interference shielding materials is rapidly increasing in several industries, such as aerospace and telecommunication. This research finds that a shielding material, which is developed by the orthogonal pattern of spinnable multiwall carbon nanotubes (MWNTs), is ultra-light weight, thin, and has a high shielding effectiveness (SE). An orthogonal pattern, generated by just alignment of the spinnable MWNTs without adding any support materials such as polymers, ceramics, and magnets demonstrates that it is possible to efficiently attenuate electromagnetic interference (EMI) in the X-band frequency range (8.2-12.4 GHz). EMI SE in the developed shielding material is about 19.2 dB with a specific shielding effectiveness (SSE)/t (thickness) value of 73,633 dB cm(2) g (-1) at a thickness of about 4.48 mu m. In addition, absorption effectiveness in this shielding material is as high as 96.3%, which provides excellent ability to reduce the secondary damage by reflection. (C) 2019 Elsevier Ltd. All rights reserved.
URI
https://www.sciencedirect.com/science/article/pii/S0008622319305251?via%3Dihub#!https://repository.hanyang.ac.kr/handle/20.500.11754/155502
ISSN
0008-6223; 1873-3891
DOI
10.1016/j.carbon.2019.05.052
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRICAL AND BIOMEDICAL ENGINEERING(전기·생체공학부) > Articles
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