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Protective Coatings in Arctic Environments

Protective Coatings in Arctic Environments

Kategori
Vitenskapelig foredrag
Sammendrag
Protective coating systems were investigated in the laboratory at temperatures down to -60˚C to simulate arctic conditions. Ageing resistance testing according to ISO 20340 showed generally acceptable rust creep. Polysiloxane topcoats, however, showed cracking after testing. Investigation of internal stress of topcoats showed an increased stress level with decreasing temperatures. The highest internal stress was found for one of the polysiloxane topcoats that cracked in the corrosion test. The calculated stress level was in the order of 40 MPa, which is significantly higher than the tensile strength of the coating. Hence, internal stress at low temperature is an important parameter to consider when selecting coatings for arctic environments.
Oppdragsgiver
  • Research Council of Norway (RCN) / 193823.
Språk
Engelsk
Institusjon(er)
  • SINTEF Industri / Materialer og nanoteknologi
  • Norges teknisk-naturvitenskapelige universitet
Presentert på
EUROCORR 2012
Sted
Istanbul
Dato
09.09.2012 - 13.09.2012
Arrangør
European Federation of Corrosion - EFC
År
2012