Aluminijska i niklena nanokompozitna epoksidna prevlaka

master's thesis

• Title (english): Aluminium and nickel nanocomposition epoxy coating
• Author: Jelena Soldo
• Mentor: Vesna Alar (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2023-12-07, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering

Abstract

U teorijskom dijelu rada ukratko su opisana svojstva i primjena lijevanog željeza. Nakon toga opisana je korozija te elektrokemijska korozija koja napada ukopane cjevovode. Također, mikrobiološki poticana korozija je još jedna vrsta korozije koja se često javlja na konstrukcijama koje su ukopane u zemlju. Za zaštitu konstrukcija od različitih korozivnih djelovanja koriste se zaštitne prevlake koje mogu biti pripravljene na bazi anorganskih i organskih komponenti. Najčešće korišteni zaštitni sustav su epoksidne prevlake koje se sastoje od epoksidne smole i učvršćivača (otvrdnjivača). Dodatkom raznih vrsta nanočestica u organske premaze pospješuju se njihova antikorozijska svojstva.
U eksperimentalnom dijelu rada provedena su fizikalna i kemijska ispitivanja nanokompozitnih Al i Ni epoksidnih prevlaka. Elektrokemijskim tehnikama izlaganjem uzoraka u 3,5% otopini NaCl-a određena su zaštitna svojstva prevlaka. Biološkim ispitivanjem ispitano je djelovanje nanokompozitne prevlake prema bakterijama Pseudomonas aeruginosa i Bacillus subtilis. Na samom kraju analizirani su eksperimentalni podaci te je donesen zaključak.

Abstract (english)

The properties and application of cast iron are briefly described in the theoretical part of the paper. After that, corrosion and electrochemical corrosion attacking buried pipelines are described. Also, microbiologically induced corrosion is another type of corrosion that often occurs on structures that are buried in the ground. To protect structures from various corrosive effects, protective coatings are used, which can be prepared on the basis of inorganic and organic components. The most commonly used protective system are epoxy coatings consisting of epoxy resin and a hardener. The addition of various types of nanoparticles to organic coatings improves their anti-corrosion properties.
In the experimental part of the work, physical and chemical tests of nanocomposite Al and Ni epoxy coatings were performed. The protective properties of the coatings were determined by electrochemical techniques by exposing the samples to a 3.5% NaCl solution. A biological test tested the effect of the nanocomposite coating against the bacteria Pseudomonas aeruginosa and Bacillus subtilis. At the very end, the experimental data were analysed and a conclusion was drawn.

• Keywords: lijevano željezo; korozija; epoksidne prevlake
• Keywords (english): cast iron; corrosion; epoxy coating
• Language: croatian
• URN:NBN: urn:nbn:hr:235:896536
• Project: Number: KK.01.1.1.07.0045; Title: Razvoj sustava antikorozivne zaštite za višenamjensku uporabu cijevi; Title: Development of anti-corrosion protection system for multipurpose pipe use; Acronym: RSAZ; Leader: Vesna Alar; Jurisdiction: Croatia; Funder: EK; Funding stream: EFRR
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2023-12-01 10:07:48