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Zaštita materijala
2015, vol. 56, br. 4, str. 429-434
jezik rada: srpski
vrsta rada: naučni članak
objavljeno: 11/06/2016
doi: 10.5937/ZasMat1504429V
Inhibicija korozije bakra primenom derivata tiazola
aUniverzitet u Novom Sadu, Prirodno-matematički fakultet
bResearch Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary

e-adresa: djendji.vastag@dh.uns.ac.rs

Projekat

Proučavanje sinteze, strukture i aktivnosti organskih jedinjenja prirodnog i sintetskog porekla (MPNTR - 172013)

Sažetak

Primenom elektrohemijske impedansne spektroskopije (EIS) i skenirajućeg elektronskog mikroskopa (SEM) ispitivano je inhibitorsko dejstvo 5-(4'-dimetilaminobenziliden)-2,4-dioksotetrahidro-1,3-tiazola, DABDT, na koroziju bakra u kiselo-sulfatnoj sredini (0,1moldm-3 Na2SO4, pH=3). Dobijeni rezultati ukazuju na dobru inhibitorsku efikasnost ispitivanog derivata, koja raste sa porastom primenjene koncentracije. Zaštitni efekat DABDT-a ostvaruje putem hemisorpcije (prateći Langmirovu izotermu) u obliku vrlo tankog inhibitorskog filma na bakarnu površinu, što se manifestuje povećanjem ukupnog otpora, sniženjem kapaciteta dvojnog sloja, kao i manje oštećenom bakarnom površinom u odnosu na korozionu sredinu.

Ključne reči

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