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2004, vol. 45, br. 1, str. 19-25
Koroziono ispitivanje elektrohemijski taloženog polianilina i polianilina/epoksi prevlaka na mekom čeliku u rastvoru sumporne kiseline
Univerzitet u Beogradu, Tehnološko-metalurški fakultet

e-adresabngrgur@elab.tmf.bg.ac.yu
Sažetak
Koroziono ponašanje mekog čelika, mekog čelika sa elektrohemijski taloženim filmom polianilina (PANI), epoksi prevlake na mekom čeliku i PANI/epoksi sistema na mekom čeliku, je ispitivano primenom elektrohemijske impedansne spektroskopije (EIS). Elektrohemijsko taloženja filma PANI na mekom čeliku je ostvareno u vodenom rastvoru 0.5 M Na-benzoata i 0.1 M anilina, pod galvanostatskim uslovima (1.5 mA cm-2). Eposkidne prevlake na mekom čeliku i mekom čeliku modifikovanom sa filmom PANI, su taložene u uslovima konstantnog napona. Pokazano je da PANI film omogućava dobru zaštitu mekom čeliku od korozije u 0.1 M rastvoru sumporne kiseline, pa se može koristiti kao modifikacija mekog čelika pre taloženja epoksidnih prevlaka. Uočena je povećana koroziona zaštita mekog čelika sa prevlakom PANI/epoksi, u odnosu na meki čelik sa epoksi prevlakom.
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objavljen u SCIndeksu: 02.06.2007.