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  • Development of eco-friendly and non-hazardous outdoor bronze protective coatings [Elektronski vir]
    Kosec, Tadeja ...
    Copper and copper alloys such as bronze tend to oxidize into thermodynamically more stable state. One of these processes is spontaneous patination (ageing of bronze) or it can be patinated ... deliberately by different chemical compounds by a process called artificial patination. The objectives of this study is to find the eco-friendly and non-hazardous protection of outdoor bronze that are already patinated. Two different bronze alloys, supplied by an artistic foundry (Livartis d.o.o., Slovenia), are used as substrates: a modern silicon bronze (Cu-3Si-1Mn) that is used in contemporary art, artificially black patinated with K 2 S ("liver of sulphur"), and a historical quaternary bronze (Cu-6.5Sn-4Zn-2Pb), patinated by artificial ageing in conditions which closely simulate outdoor exposure (runoff and stagnant rain conditions). Results about surface characterization will be presented. The development of one type of the coatings for protection of patinated bronze substrates will be presented, namely fluoropolymere type of coating. The performance of protective coating will be assessed by electrochemical methods in artificial acid rain and by severe accelerated ageing involving environmental parameters (runoff, UV radiation,etc.). The effectiveness of the protection of bronze surfaces will be discussed and evaluated. This study is a part of B-IMPACT (Bronze-IMproved non-hazardous PAtina CoaTings) project, funded within the European M-ERA.Net consortium. Project aimed at developing innovative eco-friendly and non- hazardous protective coatings for the protection of bronze surfaces exposed to the outdoor environment (http://www.b-impact.eu, ). This 2-year project was coordinated by the Slovenian National Building and Civil Engineering Institute and involved academic partners (University of Toulouse (F), University of Bologna and University of Ferrara (I)), together with SME partners for coating research (Geida d.o.o., Slovenia), coating formulation and production (Pylote SAS and C2M Aurochs Industrie, France), and toxicity assessment (Ecamricert SRL, Italy).
    Vir: EUROCORR 2017 [Elektronski vir] : corrosion control for safer living (Str. 1)
    Vrsta gradiva - prispevek na konferenci ; neleposlovje za odrasle
    Leto - 2017
    Jezik - angleški
    COBISS.SI-ID - 2323559

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