A novel ternary composite: fabrication, performance and application of expanded graphite/polyaniline/CoFe2O4 ferrite

被引：142

作者：

Chen, Keyu ^{[1
]}

Xiang, Chen ^{[1
]}

Li, Liangchao ^{[1
]}

Qian, Haisheng ^{[1
]}

Xiao, Qiushi ^{[1
]}

Xu, Feng ^{[1
]}

机构：

[1] Zhejiang Normal Univ, Zhejiang Key Lab React Chem Solid Surface, Jinhua 321004, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2012年 / 22卷 / 13期

关键词：

MICROWAVE-ABSORPTION PROPERTIES; NANOCOMPOSITES; ABSORBERS; GRAPHITE; HEXAFERRITES; POLYANILINE; PROPERTY; POLYMER;

D O I：

10.1039/c2jm15096d

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Expanded graphite-polyaniline microparticles (EG/PANI), synthesized by the emulsion polymerization of aniline in the presence of expanded graphite, were coated with CoFe2O4 ferrite (CF) to form ternary composites of EG/PANI/CoFe2O4 (EG/PANI/CF). The phase composition, morphology, electrical and magnetic performances of the composites were characterized by means of modern measurement technology. The results indicated that the electrical and magnetic performances of the ternary composites were related to their composition, and were better than those of binary composites. The EG/PANI/CF composites with a m(CF)/m(EG/PANI) of 0.2 had the best conductivity (86.207 S cm(-1)) of all ternary composites. The EG/PANI/CF composites with a m(CF)/m(EG/PANI) of 0.8 at a thickness of 0.5 mm had the minimum reflection loss of 19.13 dB at 13.28 GHz and an available bandwidth of 5.94 GHz. Hence, the obtained composites had potential and valuable applications in microwave shielding and absorption fields.

引用

页码：6449 / 6455

页数：7

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