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Enhancement of electromagnetic interference shielding effectiveness with alignment of spinnable multiwalled carbon nanotubes

Author:
Lee, Duck Weon, Park, Jongwoo, Kim, Bum Joon, Kim, Hyunsoo, Choi, Changsoon, Baughman, Ray H., Kim, Seon Jeong, Kim, Youn Tae
Source:
Carbon 2019 v.142 pp. 528-534
ISSN:
0008-6223
Subject:
barium titanate, carbon, carbon nanotubes, electromagnetic interference, iron oxides
Abstract:
This research develops a unique material to attenuate electromagnetic interference (EMI) by using spinnable multiwalled carbon nanotubes (MWNTs) combined with bio-polydimethylsiloxane (PDMS) that contains BaTiO3 (MBPBT). In particular, a plaid pattern, formed by the spinnable MWNTs, is very effective in attenuating the propagation of EM waves,which achieves over 20 dB at 8.2–12.4 GHz (X-band frequency range). This means that a filter type of the spinnable MWNTs is actively able to handle the directionality and movement of EMI propagation. In addition, the MBPBT is characterized by its strong mechanical advantage (bending radius 180°).
Agid:
6190621