Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5204208 | Polymer Degradation and Stability | 2008 | 6 Pages |
Abstract
Carbon black coated with polyaniline, forming a core-shell structure, was synthesized by in situ polymerization at different carbon black contents (5-30Â 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 18-40Â 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.
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Authors
K.H. Wu, T.H. Ting, G.P. Wang, W.D. Ho, C.C. Shih,