Intelligent corrosion resistant coating
Nearly all metals and their alloys are subject to corrosion that causes them to lose their structural integrity or other critical functionality. Protective coatings are the most commonly used method of corrosion control. However, progressively stricter environmental regulations have resulted in the ban of many commercially available corrosion protective coatings due to the harmful effects of their solvents corrosion inhibitors.
To battle this problem NASA developed a multifunctional smart coating that autonomously controls corrosion. This coating has the ability to detect the chemical changes associated with the onset of corrosion and respond autonomously to indicate it and control it.
The multi-functionality of the coating is based on microencapsulation technology specifically designed for corrosion control applications. This design has, in addition to all the advantages of existing microcapsulation designs, the corrosion controlled release function that triggers the delivery of corrosion indicators and inhibitors on demand, only when and where needed.
Source: techniline.sirris.beAdded: 13 April 2012