Synergetic improvement in electromagnetic interference shielding characteristics of polyaniline-coated graphite oxide/γ-Fe2O3/BaTiO3 nanocomposites

被引:44
作者
Moon, Young-E [1 ]
Yun, Jumi [1 ,2 ]
Kim, Hyung-Il [1 ]
机构
[1] Chungnam Natl Univ, Dept Fine Chem Engn & Appl Chem, BK21 E2 M, Taejon 305764, South Korea
[2] Univ Wollongong, ISEM, Wollongong, NSW 2522, Australia
关键词
Electromagnetic interference shielding; Polyaniline; Graphite oxide; Ferromagnetic; Ferroelectrics; Nanocomposite; MICROWAVE ABSORBING PROPERTIES; MAGNETIC-PROPERTIES; CARBON NANOTUBES; ELECTRICAL-PROPERTIES; COMPOSITES; FILMS; CONDUCTIVITY; DISPERSION; EFFICIENCY; ABSORPTION;
D O I
10.1016/j.jiec.2012.09.002
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Polymer nanocomposites were prepared by in situ polymerization of aniline with graphite oxide (GO), gamma-Fe2O3, and BaTiO3 as electromagnetic interference (EMI) shielding materials. GO, gamma-Fe2O3, and BaTiO3 nanoparticles were incorporated in the nanocomposites to improve the electromagnetic properties. The nanocomposites showed the significant improvement in both EMI shielding efficiency (SE) and thermal property due to the thermal conductivity of GO, the magnetic effect of gamma-Fe2O3, and the electric effect of BaTiO3. The EMI SE of nanocomposites was improved due to the synergetic effect of reflection and absorption of electromagnetic interference by GO, gamma-Fe2O3, and BaTiO3 additives. (c) 2012 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:493 / 497
页数:5
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