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undergraduate thesis
Zaštita korodiralih površina dugolančanim organskim kiselinama
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2019. urn:nbn:hr:149:135165
Raspor, Marija
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

Raspor, M. (2019). Zaštita korodiralih površina dugolančanim organskim kiselinama (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:135165

Raspor, Marija. "Zaštita korodiralih površina dugolančanim organskim kiselinama." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2019. https://urn.nsk.hr/urn:nbn:hr:149:135165

Raspor, Marija. "Zaštita korodiralih površina dugolančanim organskim kiselinama." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2019. https://urn.nsk.hr/urn:nbn:hr:149:135165

Raspor, M. (2019). 'Zaštita korodiralih površina dugolančanim organskim kiselinama', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 26 November 2024, https://urn.nsk.hr/urn:nbn:hr:149:135165

Raspor M. Zaštita korodiralih površina dugolančanim organskim kiselinama [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2019 [cited 2024 November 26] Available at: https://urn.nsk.hr/urn:nbn:hr:149:135165

M. Raspor, "Zaštita korodiralih površina dugolančanim organskim kiselinama", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2019. Available at: https://urn.nsk.hr/urn:nbn:hr:149:135165

Metadata
TitleZaštita korodiralih površina dugolančanim organskim kiselinama
Title (english)Protection of corroded surfaces with long-chain organic acids
AuthorMarija Raspor
MentorHelena Otmačić Ćurković (mentor)
Committee memberHelena Otmačić Ćurković (predsjednik povjerenstva)
Committee memberLjerka Kratofil Krehula (član povjerenstva)
Committee memberJozefina Katić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2019-07-11, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
Cilj ovog rada je bio ispitati mogućnost zaštite korodiralih površina pomoću dugolančanih organskih kiselina. Eksperiment se proveo u simuliranoj morskoj vodi, odnosno 3%-tnoj otopini NaCl. Ispitivane su Cu/Ni elektrode koje su najprije bile izložene korozivnom mediju a potom se formirao film dugolančanih organskih kiselina uranjanjem u etanolne otopine 0,01M stearinske odnosno oktadecilfosfonske (ODPA) kiseline. Rezultati korozijskih ispitivanja provedenih linearnom polarizacijom, elektrokemijskom impedancijskom spektroskopijom te Tafelovom ekstrapolacijom, pokazuju kako se korodirale površine mogu zaštiti pomoću navedenih kiselina budući da im je otpornost prema koroziji veća nego kod netretiranih površina. Usporedbom rezultata dobivenih za filmove stearinske i oktadecilfosfonske kiseline utvrđeno je da filmovi ODPA pružaju bolju korozijsku zaštitu.
Abstract (english)
The aim of this study was to examine the possibility of protecting corroded surfaces by utilizing long-chain organic acids. The experiment was conducted in simulated sea water, i.e. in a 3% NaCl solution. Cu/Ni electrodes, which were first exposed to the corrosive medium, were tested. After the formation of a film of long-chain organic acids, the electrodes were immersed in a 0.01M ethanolic solution of stearic and octadecylphosphonic (ODPA) acid. The results of the corrosion tests carried out by linear polarization, electrochemical impedance spectroscopy and the Tafel extrapolation have shown that the corroded surfaces can be protected by the above listed acids since their corrosion resistance is higher than that of non-treated surfaces. By comparing the results obtained from the films of stearic and octadecylphosphonic acid it has been found that ODPA films provide better corrosion protection.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:135165
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 conditionsOpen access
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Created on2023-05-28 16:37:30