Minimization of Ice Adhesion to Space Shuttle Component Surfaces

Autor: Roberto J. Cano, Barry A. Coutermarsh, Erik S. Weiser, Leslie Curtis, Michael G. Ferrick, Eloy C. Martinez, Nathan D. Mulherin, Charles G. Stevenson, Trent M. Smith, Glenn D. Durell, Terry L. St. Clair
Rok vydání: 2012
Předmět:
Zdroj: Journal of Adhesion Science and Technology. 26:473-503
ISSN: 1568-5616
0169-4243
DOI: 10.1163/016942411x574619
Popis: The goals of this two-phase experimental program were to optimize the effectiveness of an icephobic coating for use on several Space Shuttle surfaces. Coating application with a foam brush provided consistent, controlled and reproducible surface coverage. Ice samples were grown slowly and consistently at −10°C prior to cooling to a constant −112°C temperature for cryogenic double lap shear testing. Phase 1 tests were focused on finding an optimal coating mix of Rain-X and varying weight fractions of PTFE powders MP-55 and UF-8TA. The MP-55 coatings produced large reductions in ice adhesion to aluminum coupons while the UF-8TA coatings were similar to uncoated controls. The M4 mixture with 40% MP-55 and 60% Rain-X gave the best and most consistent coating with outstanding performance and durability through five cycles of ice growth and adhesion failure. Phase 2 tests verified the effectiveness and durability of this coating over Koropon, Kapton tape, Kapton film and fire-retardant-paint surfaces o...
Databáze: OpenAIRE