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INHIBITION OF ACIDIC ALUMINIUM CORROSION USING ETHANOL SOLUTION OF LAVENDER ESSENTIAL OIL


Halambek, Jasna; Berković, Katarina; Gojo, Miroslav
INHIBITION OF ACIDIC ALUMINIUM CORROSION USING ETHANOL SOLUTION OF LAVENDER ESSENTIAL OIL // Conference proceedings MATRIB 2013 / Alar, Ž. ; Jakovljević, S. (ur.).
Zagreb: Croatian Society for Materials and Tribology, 2013. str. 185-191 (poster, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)


Naslov
INHIBITION OF ACIDIC ALUMINIUM CORROSION USING ETHANOL SOLUTION OF LAVENDER ESSENTIAL OIL

Autori
Halambek, Jasna ; Berković, Katarina ; Gojo, Miroslav

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Conference proceedings MATRIB 2013 / Alar, Ž. ; Jakovljević, S. - Zagreb : Croatian Society for Materials and Tribology, 2013, 185-191

Skup
MATRIB 2013

Mjesto i datum
Vela luka, Hrvatska, 26.-29. 06. 2013

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Corrosion; inhibition; lavender oil; polarization; EIS

Sažetak
Corrosion inhibition of aluminium in 1 M HCl solution using 30% (v/v) ethanol solution of Lavandula angustifolia L. oil was studied by potentiodynamic polarization and EIS methods. It was found that lavender oil effectively inhibits aluminium corrosion in concentration range from 50 to 500 ppm by volume. Polarization curves showed that lavender oil behaves as cathodic inhibitor for aluminium in HCl solution. EIS results confirmed that active compounds present in this oil have ability to form protective layer on aluminium surface. Inhibitive effect was probably caused by adsorption of active compounds such as linalool, linalyl acetate, 1, 8-cineole and camphor on aluminium surface. This study showed that ethanol solution of Lavandula angustifolia L. oil could be used as an effective green corrosion inhibitor for aluminium corrosion in acidic medium, but must be handled as mixture of inhibitors which can act synergistically to inhibit aluminium corrosion.

Izvorni jezik
Engleski

Znanstvena područja
Grafička tehnologija, Biotehnologija



POVEZANOST RADA


Projekt / tema
058-0582261-2256 - Biološki aktivni spojevi domaćih sorta brokule i kakao zrna. (Ivana Radojčić Redovniković, )
128-1201785-2228 - Razvoj metoda mjerenja površina tiskovnih formi (Miroslav Gojo, )

Ustanove
Prehrambeno-biotehnološki fakultet, Zagreb,
Grafički fakultet, Zagreb