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Testing a fluorinated compound as a protective material for calcarenite
Institution:1. Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, MN 55455-0132, USA;2. Department of Chemistry and Chemical Theory Center, University of Minnesota, 207 Pleasant Street SE, Minneapolis, MN 55455-0431, USA;3. Theoretical Separation Science Laboratory, Kroungold Analytical Inc., 1299 Butler Pike, Blue Bell, PA 19422, USA;1. Université de Limoges, Institut 145 GEIST, EA 3842 “Homéostasie cellulaire et pathologies”, Faculté de Médecine, 2 rue du Dr Marcland, 87025 Limoges Cedex, France;2. CHU de Limoges, Service de chirurgie digestive générale et endocrinienne, 2 rue Martin Luther King, 87042 Limoges Cedex, France;3. Oncomedics, 1 Avenue d’Ester, 87069 Limoges, France;4. Université de Limoges, Institut 145 GEIST, EA 3842 “Homéostasie cellulaire et pathologies”, Faculté de Pharmacie, Laboratoire de Chimie Analytique et Bromatologie, 87025 Limoges Cedex, France;1. Department of Chemical Engineering, University of California Santa Barbara, Santa Barbara, CA 93106-5080, United States;2. Jülich Centre for Neutron Science, JCNS at MLZ, Forschungszentrum Jülich GmbH, 85747 Garching, Germany;3. Department of Chemical, Materials and Production Engineering, University of Naples “Federico II”, Piazzale Tecchio 80, 80125 Naples, Italy;4. CSGI, Consorzio interuniversitario per lo sviluppo dei Sistemi a Grande Interfase, Florence, Italy;5. Department of Chemical Sciences, University of Naples “Federico II”, Complesso di, Monte S. Angelo, via Cintia, 80126 Naples, Italy;6. Jülich Centre for Neutron Science, JCNS-1, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
Abstract:A polyfluorinated compound was studied as a material for the specific protection of calcarenite. Water capillary absorption and vapour permeability measurements were carried out in order to evaluate efficiency as a protective agent. Particular attention was given to characterising its resistance against bio-deterioration induced by microorganisms such as blue and green algae. Chemical surface modifications were induced by UV-irradiation in a specially designed climatic chamber and were investigated through comparative tests on untreated and artificially weathered samples using X-ray photoelectron spectroscopy (XPS). This paper discusses the potential use of the compound studied as a specific coating material for the protection of calcarenite.
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