Polypyrrole Stability and Coatings for Radar Absorbing Materials

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Authors
  1. Saville, P.
  2. Kopac, M.
  3. Leslie, A.
Corporate Authors
Defence R&D Canada - Atlantic, Dartmouth NS (CAN)
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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Keywords
polypyrrole;radar absorbing material;conducting polymers
Report Number
DRDC-ATLANTIC-TM-2004-299 — Technical Memorandum
Date of publication
16 Dec 2004
Number of Pages
42
DSTKIM No
CA025947
CANDIS No
523750
Format(s):
Electronic Document(PDF)

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