Polypyrrole Stability and Coatings for Radar Absorbing Materials

Abstract

Resistive materials absorb microwaves by converting the induced current into heat. Polypyrrole is an electrically conducting polymer that has the potential to be used as a radar absorbing material. The long-term electrical stability of polypyrrole and its composites will determine its utility for advanced applications. This paper describes the formulation of coating materials containing polypyrrole synthesized with different counter ions. Observations of the electrical and permittivity stability of the powders and coatings are presented as a function of time. The results show that embedding the conductive material in a matrix stabilises the properties. The results also highlight the challenges that will be faced in reproducibly formulating a coating with consistent properties.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2004
Accession Number
ADA436251

Entities

People

  • Andrew Leslie
  • Mike Kopac
  • Paul Saville

Organizations

  • Defence Research and Development Canada

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Alkenes
  • Ball Mills
  • Biomedical And Dental Materials
  • Chemical Synthesis
  • Chemistry
  • Composite Materials
  • Conductive Polymers
  • Diffusion Coefficient
  • Films
  • Information Operations
  • Materials
  • Materials Science
  • Measurement
  • Organic Chemistry
  • Organic Materials
  • Polymers
  • Radar Absorbing Materials

Fields of Study

  • Materials science

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Polymer Science and Technology
  • Surface Coatings Technology.