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Recent Developments on Autonomous Corrosion Protection Through EncapsulationThis paper concerns recent progress in the development of a multifunctional smart coating, based on microencapsulation, for the autonomous detection and control of corrosion. Microencapsulation has been validated and optimized to incorporate desired corrosion control functionalities, such as early corrosion detection and inhibition, through corrosion-initiated release of corrosion indicators and inhibitors, as well as self-healing agent release triggered by mechanical damage. While proof-of-concept results have been previously reported, more recent research and development efforts have concentrated on improving coating compatibility and synthesis procedure scalability, with a targeted goal of obtaining easily dispersible pigment-grade type microencapsulated materials. The recent progress has resulted in the development of pH-sensitive microparticles as a corrosion-triggered delivery system for corrosion indicators and inhibitors. The synthesis and early corrosion indication results obtained with coating formulations that incorporate these microparticles are reported. The early corrosion indicating results were obtained with color changing and with fluorescent indicators.
Document ID
20150023108
Acquisition Source
Kennedy Space Center
Document Type
Conference Paper
Authors
Li, W.
(Vencore Services and Solutions, Inc. Kennedy Space Center, FL, United States)
Buhrow, J. W.
(Sierra Lobo, Inc. Kennedy Space Center, FL, United States)
Calle, L. M.
(NASA Kennedy Space Center Cocoa Beach, FL, United States)
Gillis, M.
(University of Southern Mississippi Hattiesburg, MS, United States)
Blanton, M.
(University of Southern Mississippi Hattiesburg, MS, United States)
Hanna, J.
(University of Southern Mississippi Hattiesburg, MS, United States)
Rawlins, J.
(University of Southern Mississippi Hattiesburg, MS, United States)
Date Acquired
December 15, 2015
Publication Date
November 15, 2015
Subject Category
Chemistry And Materials (General)
Report/Patent Number
KSC-E-DAA-TN25687
Meeting Information
Meeting: 2015 Department of Defense - Allied Nations Technical Corrosion Conference
Location: Pittsburgh, PA
Country: United States
Start Date: November 15, 2015
End Date: November 19, 2015
Sponsors: Department of Defense
Funding Number(s)
CONTRACT_GRANT: NNK11EA08C
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
Autonomous
Encapsulation
Corrision
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