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Full-Text Articles in Physical Sciences and Mathematics
Assessing The Protective Quality Of Wax Coatings On Bronze Sculptures Using Hydrogel Patches In Impedance Measurements, Alice H. England, Kathryn N. Hosbein, Capri A. Price, Morgan K. Wylder, Kenna S. Miller, Tami Lasseter Clare
Assessing The Protective Quality Of Wax Coatings On Bronze Sculptures Using Hydrogel Patches In Impedance Measurements, Alice H. England, Kathryn N. Hosbein, Capri A. Price, Morgan K. Wylder, Kenna S. Miller, Tami Lasseter Clare
Chemistry Faculty Publications and Presentations
In this work, we used chemically cross-linked acrylamide-based hydrogel patches that have been specifically developed for use as solid electrolytes in Electrochemical Impedance Spectroscopy to measure the impedance of two waxed bronze sculptures at the Seattle Art Museum’s (SAM) Olympic Sculpture Park (OSP) and compare those results to laboratory test panels. We determined that the impedance response in the frequency range in which measurements may be taken (10 kHz to 1 MHz) is mostly capacitive and that a freshly applied wax coating should ideally be less than 1 nF·cm−2for optimal protective performance.
Minimizing Corrosion Of Outdoor Metalworks Using Dispersed Chemically Stabilized Nanoclays In Polyvinylidene Fluoride Latex Coatings, Natasja Alexandria Swartz, Capri A. Price, Tami Lasseter Clare
Minimizing Corrosion Of Outdoor Metalworks Using Dispersed Chemically Stabilized Nanoclays In Polyvinylidene Fluoride Latex Coatings, Natasja Alexandria Swartz, Capri A. Price, Tami Lasseter Clare
Chemistry Faculty Publications and Presentations
Nanoclays are small enough to appear optically transparent, yet they have large surface-to-volume and high aspect ratios that can significantly inhibit water diffusion when incorporated into protective coatings. Clear coatings, which minimally affect the aesthetics of metalworks, are commonly applied to outdoor metalworks, such as sculptures, to prevent and slow corrosion. In recent years, waterborne clear coatings, rather than solvent-based clear coatings, are increasingly used in many applications to reduce the quantity of volatile organic components in the formulation, yet the performance of dry films produced from waterborne colloidal suspensions is generally poorer. In this work, we aim to improve …