Corrosion protection by hydrophobic silica particle-polydimethylsiloxane composite coatings
2015 (English)In: Corrosion Science, ISSN 0010-938X, E-ISSN 1879-0496, no 99, 89-97 p.Article in journal (Refereed) Published
In this study, the time-dependent corrosion protection ability of 10–15 µm thin polydimethylsiloxane -nanoparticle composite coatings was evaluated using mainly open circuit potential and electrochemical impedance spectroscopy measurements. The best result was obtained for the coating containing 20 wt% hydrophobic silica nanoparticles, where it was possible to achieve protection for almost 80 days in 3 wt% NaCl solution. The protective properties offered by this coating are suggested to be due to a synergistic effect of the hydrophobicity of the polydimethylsiloxane matrix and the prolonged diffusion path caused by addition of hydrophobic silica particles.
Place, publisher, year, edition, pages
2015. no 99, 89-97 p.
Carbon steel, organic coating, EIS, electrochemical calculation, polymer coatings
Metallurgy and Metallic Materials
Research subject Chemistry
IdentifiersURN: urn:nbn:se:kth:diva-175400DOI: 10.1016/j.corsci.2015.06.018ISI: 000362619900007ScopusID: 2-s2.0-84941805107OAI: oai:DiVA.org:kth-175400DiVA: diva2:860814
QC 201510152015-10-142015-10-142015-11-03Bibliographically approved