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Type: Artigo de periódico
Title: Influence of processing time and composition in the microwave absorption of EPDM/PAni blends
Author: Faez, R
Martin, IM
De Paoli, M
Rezende, MC
Abstract: Blends of ethylene-propylene-diene monomer (EPDM) and polyaniline (PAni) doped with dodecylbenzene sulfonic acid were prepared by mechanical mixing in an internal mixer at various compositions and times. Reflectivity characteristics of the blends in the 8-12-GHz range were investigated with the Naval Research Laboratory arch method. The microwave absorption behavior was affected by the processing time and blend composition. The correlation of reflectivity measurements with morphology observations made with scanning electron microscopy suggested that the distribution and concentration of the PAni phase within the EPDM matrix altered the wave-matter interactions. The radar-absorbing materials prepared in this work showed broadband behavior with microwave radiation absorption of up to 90%. (C) 2002 John Wiley & Sons, Inc. J Appl Polym Sci 83: 1568-1575, 2002.
Subject: stealth technology
conductive elastomers
radar-absorbing materials
conductive polymer
scanning electron microscopy
Country: EUA
Editor: John Wiley & Sons Inc
Citation: Journal Of Applied Polymer Science. John Wiley & Sons Inc, v. 83, n. 7, n. 1568, n. 1575, 2002.
Rights: fechado
Identifier DOI: 10.1002/app.10133
Date Issue: 2002
Appears in Collections:Unicamp - Artigos e Outros Documentos

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