Microencapsulation of Corrosion Indicators for Smart CoatingsA multifunctional smart coating for the autonomous detection, indication, and control of corrosion is been developed based on microencapsulation technology. This paper summarizes the development, optimization, and testing of microcapsules specifically designed for early detection and indication of corrosion when incorporated into a smart coating. Results from experiments designed to test the ability of the microcapsules to detect and indicate corrosion, when blended into several paint systems, show that these experimental coatings generate a color change, indicative of spot specific corrosion events, that can be observed with the naked eye within hours rather than the hundreds of hours or months typical of the standard accelerated corrosion test protocols.. Key words: smart coating, corrosion detection, microencapsulation, microcapsule, pH-sensitive microcapsule, corrosion indicator, corrosion sensing paint
Document ID
20110014386
Acquisition Source
Kennedy Space Center
Document Type
Conference Paper
Authors
Li, Wenyan (NASA Kennedy Space Center Cocoa Beach, FL, United States)
Buhrow, Jerry W. (NASA Kennedy Space Center Cocoa Beach, FL, United States)
Jolley, Scott T. (NASA Kennedy Space Center Cocoa Beach, FL, United States)
Calle, Luz M. (NASA Kennedy Space Center Cocoa Beach, FL, United States)
Hanna,Joshua S. (University of Southern Mississippi Hattiesburg, MS, United States)
Rawlins, James W. (University of Southern Mississippi Hattiesburg, MS, United States)