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undergraduate thesis
Zaštita čelika inhibitorima korozije
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2021. urn:nbn:hr:149:465121
Alar, Toni
University of Zagreb
Faculty of Chemical Engineering and Technology

Institutional repository: Repository of Faculty of Chemical Engineering and Technology University of Zagreb

Cite this document

Alar, T. (2021). Zaštita čelika inhibitorima korozije (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:465121

Alar, Toni. "Zaštita čelika inhibitorima korozije." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2021. https://urn.nsk.hr/urn:nbn:hr:149:465121

Alar, Toni. "Zaštita čelika inhibitorima korozije." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2021. https://urn.nsk.hr/urn:nbn:hr:149:465121

Alar, T. (2021). 'Zaštita čelika inhibitorima korozije', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 29 December 2024, https://urn.nsk.hr/urn:nbn:hr:149:465121

Alar T. Zaštita čelika inhibitorima korozije [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2021 [cited 2024 December 29] Available at: https://urn.nsk.hr/urn:nbn:hr:149:465121

T. Alar, "Zaštita čelika inhibitorima korozije", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2021. Available at: https://urn.nsk.hr/urn:nbn:hr:149:465121

Metadata
TitleZaštita čelika inhibitorima korozije
Title (english)Corrosion protection of steel with corrosion inhibitors
AuthorToni Alar
MentorHelena Otmačić Ćurković (mentor)
Committee memberHelena Otmačić Ćurković (predsjednik povjerenstva)
Committee memberSanja Martinez (član povjerenstva)
Committee memberDragana Vuk (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2021-09-09, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
Cilj ovog rada bio je utvrditi mogućnost primjene dvaju derivata imidazola: 2-amino-5(6) – nitrobenzimidazola (1) i 2-aminobenzimidazola (2) kao inhibitora korozije u zaštiti ugljičnog čelika oznake C45E u kiselom i neutralnom kloridnom mediju. Ispitivanja su provedena u 0,5 M otopini HCl-a i neutralnoj 0,5 M otopini NaCl-a, sa i bez inhibitora, pri različitim koncentracijama 2-amino-5(6) – nitrobenzimidazola kako bi se utvrdila optimalna koncentracija. Primijenjene koncentracije inhibitora (1) u kiseloj otopini su 0,1 mM, 0,5 mM, 0,75 mM, 1 mM i 5 mM, a koncentracija inhibitora (2) iznosila je 1,0 mM, dok je u neutralnoj otopini koncentracija inhibitora (1) iznosila 0,75 mM. Za ispitivanje djelotvornosti inhibitora primijenjene su gravimetrijska i elektrokemijske metode. Sva ispitivanja provedena su u stacionarnim uvjetima pri sobnoj temperaturi. Dobiveni rezultat pokazali su da je ugljični čelik uronjen u kiselu otopinu u kojoj se nalazio inhibitor (1) koncentracije 0,75 mM pokazao najveću otpornost prema koroziji.
Abstract (english)
The aim of this study was to determine the possibility of using two imidazole derivatives: 2-amino-5 (6) - nitrobenzimidazole (1) and 2-aminobenzimidazole (2) as corrosion inhibitors for C45E carbon steel in acidic and neutral chloride media. Study was performed in 0,5 M HCl solution and in 0,5 M NaCl solution, with and without inhibitors, with various concentrations of inhibitor 2-amino-5 (6) - nitrobenzimidazole (1) to determine the optimal concentration. Applied concentrations of inhibitor (1) in the acid solution were 0,1 mM, 0,5 mM, 0,75 mM, 1 mM and 5 mM, and the concentration of inhibitor (2) was 1,0 mM, while in the neutral solution the concentration of inhibitor (1) was 0,75 mM. Gravimetric and electrochemical methods were used to test the effectiveness of the inhibitors. All tests were conducted under stationary conditions at room temperature. Results showed that carbon steel immersed in an acidic solution containing inhibitor (1) with a concentration of 0,75 mM showed the highest resistance to corrosion.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:465121
Study programmeTitle: Materials Science and Engineering - Undergraduate study
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to students and staff of home institution
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Created on2023-03-23 08:51:20