Effect of carbon black content on electrical and microwave absorbing properties of polyaniline/carbon black nanocomposites

被引:142
作者
Wu, K. H. [1 ]
Ting, T. H. [1 ]
Wang, G. P. [2 ]
Ho, W. D. [2 ]
Shih, C. C. [2 ]
机构
[1] Natl Def Univ, Chung Cheng Inst Technol, Dept Appl Chem & Mat Sci, Tao Yuan, Taiwan
[2] Chung Shan Inst Sci & Technol, Chem Syst Res Div, Tao Yuan, Taiwan
关键词
carbon black; polyaniline; reflection loss; microwave absorber;
D O I
10.1016/j.polymdegradstab.2007.11.009
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Carbon black coated with polyaniline, forming a core-shell structure, was synthesized by in situ polymerization at different carbon black contents (5-30 wt.%) and introduced into epoxy resin to be a microwave absorber. The spectroscopic characterizations of the formation processes of polyaniline/carbon black composites were studied using Fourier transform infrared, ultraviolet-visible spectrophotometer, X-ray diffraction, scanning electron microscopy, transmission electron microscopy and electron spin resonance. Microwave absorbing properties were investigated by measuring reflection loss in the 2-18 and 18-40 GHz microwave frequencies range using the free space method. The results showed that a wider absorption frequency range could be obtained by adding different carbon black contents in polyaniline. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码:483 / 488
页数:6
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