MICROWAVE ABSORBING PAINTS AND SHEETS BASED ON CARBONYL IRON AND POLYANILINE: MEASUREMENT AND SIMULATION OF THEIR PROPERTIES. doi: 10.5028/jatm.2010.02016370

Authors

  • Luiza de C. Folgueras Instituto de Aeronáutica e Espaço, São José dos Campos – Brazil
  • Mauro A. Alves Instituto de Aeronáutica e Espaço, São José dos Campos – Brazil
  • Mirabel C. Rezende Instituto de Aeronáutica e Espaço, São José dos Campos – Brazil

Keywords:

Absorbing media, Radar absorbing material, Conducting polymer, Dielectric materials, Magnetic materials.

Abstract

This paper presents the processing and characterization of electromagnetic radiation absorbing paints and sheets based on magnetic and dielectric materials dispersed in polymeric matrices. Two different paint formulations containing carbonyl iron and/or polyaniline, using polyurethane as matrix, were prepared. Silicone sheets were also produced with polyaniline conducting polymer as filler. Measurements of the electric permittivity and magnetic permeability of the materials were also carried out. Simulations for the silicone sheets were performed in order to correlate the electromagnetic parameters with the material thickness. The paints absorbed 60 to 80% of the incident electromagnetic radiation and the silicone sheets absorbed 90%, indicating the material’s radar absorbing potential.

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Published

2011-07-28

Issue

Vol. 2 No. 1 (2010): Jan./Abr. 2010

Section

Original Papers

License

This work is licensed under a Creative Commons — Attribution 4.0 International — CC BY 4.0. Authors are free to Share (copy and redistribute the material in any medium or format) and Adapt (remix, transform, and build upon the material for any purpose, even commercially). JATM allow the authors to retain publishing rights without restrictions.