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Study of green film-forming corrosion inhibitor based on mussel adhesive protein
KTH, School of Chemical Science and Engineering (CHE).
2013 (English)Student thesis
Abstract [en]

Today there are numerous methods to slow down a corrosion process of metallic materials. However, due to environmental effects and health risk issues, several traditional corrosion inhibitors have to be phased out. Hence, it is of great importance to develop new corrosion inhibitors that are “green”, safe, smart and multifunctional. In this essay, the focus is on mussel adhesive protein (MAP) and its possibility to reduce the rate of the corrosion process. The protein exhibit great adhesive strength and protective properties, allowing it to adhere to a multitude of different surfaces and is therefore of great interest of corrosion science.

The protein Mefp-1, derived from the blue mussel´s foot, had been pre-adsorbed on the carbon steel surface and provided good corrosion inhibition in a basic chloride solution for a short exposure time. The protection was further improved with the assist of iron and ceria ions by formation of protein/ions complexes within the surface films and thus enhanced the corrosion protection for longer exposure time. Ceria nanoparticles were used in order to create a multi-layer composite film with an even higher corrosion protection. The results suggest a denser film compared to previous samples and a more uniform surface.

Place, publisher, year, edition, pages
2013.
Keyword [en]
Mussel adhesive protein (MAP), corrosion, corrosion protection, electrochemical impedance spectroscopy (EIS), potentiodynamic polarization
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-143553OAI: oai:DiVA.org:kth-143553DiVA: diva2:707631
Educational program
Master of Science in Engineering - Chemical Science and Engineering
Available from: 2014-03-25 Created: 2014-03-25 Last updated: 2014-03-25Bibliographically approved

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CiteExportLink to record
Permanent link

Direct link
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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  • asciidoc
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