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Testing of elastomer icephobic coatings in the AIWT: lessons learned

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.4271/2019-01-1994
AuthorSearch for: 1; Search for: 1; Search for: 2; Search for: 2
Affiliation
  1. National Research Council of Canada. Aerospace
  2. National Research Council of Canada. Automotive and Surface Transportation
FormatText, Article
ConferenceInternational Conference on Icing of Aircraft, Engines, and Structures, June 17, 2019
Subjecticing and ice detection; test equipment and instrumentation; wind tunnel tests; ethanol; coatings; colorants and finishes; elastomers
Abstract
A study has been conducted into icephobic properties of some highly durable “off-the-shelf” elastomer materials using a rotating ice adhesion test rig installed in the NRC’s Altitude Icing Wind Tunnel. This enabled the formation of ice at environmental conditions similar to those experienced during in-flight icing encounters. Initially, the tests indicated some very positive results with ice adhesion shear stress as low as 8KPa. On further examination, however, it became apparent that the test preparation process, in which the samples were cleaned with an ethanol alcohol solution, influenced the results due to absorption and prolonged retention of the cleaning fluid. The uptake of the ethanol alcohol solution by the elastomer was found to be a function of the surface temperature and remained absorbed into the coating during the ice accretion process changing the characteristics of the coating in such a way that led to a reduction in the ice/surface bond strength.
Publication date
PublisherSAE International
In
  • SAE International Journal of Advances and Current Practices in Mobility, 2019-01-1994 (10 June 2019).
LanguageEnglish
Peer reviewedYes
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Record identifier12f97b9a-d115-4563-9e74-d7c43975421d
Record created2021-08-26
Record modified2021-08-26
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