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연구성과 > 금주의 우수논문

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SCI-E Article

Well-dispersed carbon nanotube/polymer composite films and application to electromagnetic interference shielding
성명 장광석 ()
소속 과학기술융합대학 화학분자공학과
캠퍼스
우수선정주 2019년 12월 4째주
Author Mo, Jun-Hyun (Dept Appl Chem); Jang, Kwang-Suk (Dept Appl Chem); 장광석 (Dept Chem & Mol Engn) corresponding author;
Corresponding Author Info Kim, KC (reprint author), Konkuk Univ, Dept Chem Engn, Seoul 05029, South Korea.; Jang, KS (reprint author), Hanyang Univ, Dept Chem & Mol Engn, Ansan 15588, Gyeonggi Do, South Korea.
E-mail 이메일kjang@hanyang.ac.kr
Document Type Article
Source JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY Volume:80 Issue: Pages:190-196 Published:2019
Times Cited 0
External Information http://dx.doi.org/10.1016/j.jiec.2019.07.048
Abstract Flexible and easily-processable materials exhibiting excellent electromagnetic interference (EMI) shielding performance are desirable for EMI shielding applications in electronic devices, which are getting progressively smaller and smarter. This study reports single-walled carbon nanotube (SWCNT)/poly(ethylene-alt-maleic anhydride) (PEMA) composite films with an excellent EMI shielding performance fabricated by a simple bar-coating and doping process. The AuCl3-doped SWCNT/PEMA composite films exhibited an excellent EMI shielding effectiveness (SE) of 96.3 dB at a thickness of 0.031 mm. The EMI SE values of the AuCl3-doped SWCNT/PEMA composite films are higher than any other reported synthetic materials with a similar thickness. The excellent EMI shielding performance is attributed to the high electrical conductivity. The conductivity of the SWCNT/PEMA composite films can be increased effectively to 8500 S cm(-1) through the AuCl3-doping process. It was further confirmed by MD simulations that the introduction of only 30 wt.% PEMA polymer is effective for obtaining well-dispersed SWCNTs in the composite films. It is noteworthy that such a small fraction of PEMA polymers is advantageous both for decreasing the volume fraction of the insulating polymers and facilitating the chemisorption of dopants onto the SWCNT surfaces. (C) 2019 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
Web of Science Categories Chemistry, Multidisciplinary; Engineering, Chemical
Funding Basic Science Research Program through the National Research Foundation of Korea(NRF) - Ministry of Science, ICT & Future Planning [NRF-2017R1C1B5017482, 2019R1F1A1054269]; Ministry of Education [2016R1D1A1B03930409]
Language English
attached file
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