Coating degradation

Statistical Analysis of Coatings Degradation by Time-Series Methods... 

T.K.Rehfeldt, Polymeric Coatings Degradation Properties. Report Number AFWAL-TR-84-4174, Air Force Wright Aeronautical Laboratory, (1984). 

Abou-Assaf, N. and Coats, J.R. Coats. Degradation of [ Cjisofenphos in soil in the laboratory under different soil pH s, temperatures, and moistures. J. Environ. Sci. Health, B22(3) 285-301, 1987. 

Any electrochemical technique that could be employed as a means of rapid coating degradation assessment should ideally be able to correlate with the actual observable degradation. The visual appearance of the specimens is outlined in Table 3. This appearance has been relatively stable for the past 600 days. 

There are complications however. The cathodic potential effectively stops corrosion on the metal substrate but it also contributes to early debonding of adherends, the development of leak paths under seals, and the blistering and peeling of coatings. Degradation of protective coatings is a basic life-limiting problem for underwater equipment exposed to a cathodic potential. 

Renwu Zhang, PhD. Dissertation at the University of Missouri-Kansas City, May, 2002, Studies of Coating Degradation and Polymer Chemical Environment Using Positron Annihilation Spectroscopy. ... 

Virtually all of the research on acid deposition effects on finishes has dealt with coating degradation and did not include the effect on the substrate. In early laboratory experiments of SO ... 

Coatings and films Most paints and coatings degrade by a photoelectrochemical mechanism. Applications are summarized that include protective coatings for automobiles, encapsulants for microelectronic devices, electrocatalysts, and microencapsulation techniques for controlled release of electroactive components. 

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