Naslov
Green approach to preventing corrosion of metals and alloys

Autori
Halambek, Jasna

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

Izvornik
Proceedings of Natural Resources, Green Technology & Sustainable development / Radojčić Redovniković, Ivana ; Jakovljević, Tamara, Halambek, Jasna ; Vuković, Mladen ; Erdec Hendrih, Dina - Zagreb : Prehrambeno-biotehnološki fakultet Sveučilišta u Zagrebu, 2014, 75-80

ISBN
978-953-6893-04-1

Skup
Natural Resources, Green Technology & Sustainable development

Mjesto i datum
Zagreb, Hrvatska, 26.11.2014. - 28.11.2014

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
: corrosion; natural products; essential oils; green corrosion inhibitors

Sažetak
Corrosion of metals and alloys is an important and unavoidable problem in almost all industrial processes, which results in a large economic losses caused by shortening the duration of the industrial and equipment, and quality deterioration of the final product. The use of corrosion inhibitors in the industry has a long tradition, because it provides good protection of metals and thus minimize economic loses. Despite the large number of synthetic compounds are used for this purpose, most of them are highly toxic. In the 21st century, the research in the field of green or eco-friendly corrosion inhibitors has been addressed to natural products of plant origin. From the economic and environmental points of view, these natural sources are an excellent alternative as corrosion inhibitors because of their availability, biodegradability and nontoxicity. Natural products of plant origin such as essentials oils and extracts, are incredibly rich sources of naturally synthesized chemical compounds such as glucosinolates, alkaloids, polyphenols, tannins, terpenes etc. In general, these compounds present conjugated aromatic structures, long aliphatic chains, and heteroatoms that are available to form bonds with the metal surface ; in most cases, they act synergistically to exhibit good efficiency regarding the corrosion protection. This work focuses on studying essential oils of lavender, bay laurel, dill and basil as inhibitors for corrosion protection of aluminium and its alloy in acidic and neutral solutions. The investigation of corrosion inhibition parameters was performed by weight loss, potentiodynamic polarization, electrochemical impedance spectroscopy and scanning electron microscopy methods.

Izvorni jezik
Engleski

Znanstvena područja
Matematika, Kemija, Arhitektura i urbanizam

POVEZANOST RADA