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undergraduate thesis
Utjecaj hrapavosti površine na svojstva samoorganizirajućih monoslojeva organskih kiselina
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2016. urn:nbn:hr:149:639563
Petričević, Mario
University of Zagreb
Faculty of Chemical Engineering and Technology

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

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Petričević, M. (2016). Utjecaj hrapavosti površine na svojstva samoorganizirajućih monoslojeva organskih kiselina (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:639563

Petričević, Mario. "Utjecaj hrapavosti površine na svojstva samoorganizirajućih monoslojeva organskih kiselina." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2016. https://urn.nsk.hr/urn:nbn:hr:149:639563

Petričević, Mario. "Utjecaj hrapavosti površine na svojstva samoorganizirajućih monoslojeva organskih kiselina." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2016. https://urn.nsk.hr/urn:nbn:hr:149:639563

Petričević, M. (2016). 'Utjecaj hrapavosti površine na svojstva samoorganizirajućih monoslojeva organskih kiselina', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 26 November 2024, https://urn.nsk.hr/urn:nbn:hr:149:639563

Petričević M. Utjecaj hrapavosti površine na svojstva samoorganizirajućih monoslojeva organskih kiselina [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2016 [cited 2024 November 26] Available at: https://urn.nsk.hr/urn:nbn:hr:149:639563

M. Petričević, "Utjecaj hrapavosti površine na svojstva samoorganizirajućih monoslojeva organskih kiselina", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2016. Available at: https://urn.nsk.hr/urn:nbn:hr:149:639563

Metadata
TitleUtjecaj hrapavosti površine na svojstva samoorganizirajućih monoslojeva organskih kiselina
Title (english)Influence of surface roughness on properties of self-assembled monolayers of organic acids
AuthorMario Petričević
MentorHelena Otmačić Ćurković (mentor)
Committee memberHelena Otmačić Ćurković (predsjednik povjerenstva)
Committee memberSuzana Sopčić (član povjerenstva)
Committee memberZana Hajdari Gretić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2016-09-07, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Chemical Engineering in Material Development
Abstract
Korozijsko djelovanje morskog okoliša štetno utječe na metalne konstrukcije, koje su sastavni dio svake industrije, te na taj način indirektno uzrokuje velike štete gospodarstvu. U današnje vrijeme razvijaju se nove metode zaštite metalnih konstrukcija, koje nisu štetne za morski okoliš i organizme u njemu. Jedna od tih metoda je modificiranje metalne površine tankim uređenim slojem organskih kiselina tzv. samoorganizirajućim monoslojem. U ovome radu se kao građevna jedinica monosloja koristila stearinska kiselina, koja se uranjanjem nanosila na površinu nehrđajućeg čelika te legure bakra i nikla. Ta dva metalna materijala se zbog svojih kemijskih, fizičkih i metalurških svojstava često primjenjuju u morskom okolišu. Cilj rada bio je ispitati utjecaj hrapavosti metalnih površina na adsorpciju stearinske kiseline i stvaranje kompaktnog i stabilnog samoorganizirajućeg monosloja. Uzorci metala različite hrapavosti sa nanesenim monoslojem stearinske kiseline podvrgnuti su elektrokemijskim ispitivanjima, elektrokemijske impedancijske spektroskopije, linearne polarizacije i Tafelove ekstrapolacije. Dobiveni rezultati pokazali su da se uređeniji monoslojevi stearinske kiseline stvaraju na manje hrapavim metalnim površinama.
Abstract (english)
Corrosivity of the marine environment has negative impacts on the metal structures that are the main component of every industry and thereby indirectly causes big losses to economy. Nowadays, new protection methods for metal constructions have been developed. Those methods are not harmful for a marine environment and its organisms. One of these methods is modification of metal surface with thin well ordered layer of organic acid, so called self-assembled monolayer. In this work stearic acid was used as the monolayer building block, which was applied on the stainless steel and copper and nickel alloy surface by dip coating technique. These two metallic materials have been frequently used in marine environment because of their chemical, physical and metallurgical performances. The aim of this work was to examine influence of roughness of metal surfaces on the stearic acid adsorption and the formation of compact and stable self-organized monolayer. Metal samples of different roughness with applied stearic acid monolayer were exposed to electrochemical examination by electrochemical impedance spectroscopy, linear polarization and Tafel extrapolation method. The final results showed that the ordered stearic acid monolayers were created on the less rough metal surfacecs.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:639563
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 on2018-02-02 11:49:06