Mitigation of biofouling using coatings, year 3. Quarterly progress report No. 1

Technical Report · Mon Dec 20 04:00:00 EST 1982

OSTI ID:6536150

Meyer, A E; Fornalik, M S; King, R W

Preliminary results (critical surface tension, final contact potential, and film thickness) of the freshwater experiments are given. The critical surface tension (..gamma..c) data are very similar to the results for the brackish Hudson River exposures: both the high energy and the medium energy surfaces acquired films having ..gamma..c's in the 20's (dynes/cm) during the early stages of the experiment. These films were predominantly proteinaceous. As soon as mineral deposition was established, the ..gamma..c's of all of the test surfaces increased to between 40 and 45 dynes/cm. In general, the final contact potentials of the test plates increased through time; the average values were 300 to 500 millivolts higher than those observed in the Hudson experiments. To date, all of the film thicknesses for the Niagara River experiments are 1000 Angstroms or less (even after 20 days of exposure). Plates exposed to the Hudson water acquired films of this thickness within only 5 days.

• Research Organization: Arvin Calspan, Buffalo, NY (USA). Applied Technology Group
• DOE Contract Number: AC02-80ER10766
• OSTI ID: 6536150
• Report Number(s): DOE/ER/10766-9; ON: DE83004070
• Country of Publication: United States
• Language: English

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