Naslov
Corrosion protection by self-assembled films of organic acids

Autori
Kristan Mioč, Ekatarina ; Katić, Vedrana ; Otmačić Ćurković, Helena

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

Izvornik
MTECH 2017 Zbornik radova / Kovačić, Saša - Zagreb : Hrvatsko društvo za materijale i tribologiju (HDMT), 2017, 187-197

Skup
International conference on materials: corrosion, heat treatment, testing and tribology 2017

Mjesto i datum
Zadar, Hrvatska, 04-07.10.2027

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Corrosion protection, stainless steel, self-assembled monolayers

Sažetak
Self-assembled monolayers (SAMs) of long-chain organic compounds have found their application in many fields such as sensors, electronic devices, lubrication as well as in corrosion protection. Most of the studies on SAMs application in corrosion protection are conducted by using alkanethioles SAMs on copper and silver. However, if metallic substrate is covered by an oxide layer corrosion protection by SAMs of alkanethioles is much weaker compared to those on non-oxidized metallic substrates. Thus, SAMs of long-chain organic acids that can bind strongly to oxidized metallic surfaces are much better choice for many commonly used metals and alloys. This work investigates the possibility of corrosion protection of stainless steel in chloride media by self-assembled mono- and multilayers of long-chain phosphonic acids. Various parameters of SAM preparation procedure determine if well- ordered and protective film will form, among others temperature, solution exposure time, surface roughness, solvent, etc. In this work the influence of solvent, organic acid concentration and drying time and temperature on its protective properties are examined. Based on the results obtained by electrochemical measurements and surface analysis, the optimal conditions for formation of protective organic film have been determined.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Kemijsko inženjerstvo

POVEZANOST RADA