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Corrosion protection by hydrophobic silica particle-polydimethylsiloxane composite coatings
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber. KTH Royal Institute of Technology, Sweden.
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik. KTH Royal Institute of Technology, Sweden.ORCID iD: 0000-0002-6394-6990
KTH Royal Institute of Technology, Sweden.
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik. KTH Royal Institute of Technology, Sweden.
2015 (English)In: Corrosion Science, ISSN 0010-938X, E-ISSN 1879-0496, Vol. 99, p. 89-97Article in journal (Refereed) Published
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Abstract [en]

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
Elsevier, 2015. Vol. 99, p. 89-97
Keywords [en]
carbon steel, organic coatings, EIS, electrochemical calculation, polymer coatings
National Category
Corrosion Engineering Materials Chemistry Manufacturing, Surface and Joining Technology
Identifiers
URN: urn:nbn:se:ri:diva-161DOI: 10.1016/j.corsci.2015.06.018Scopus ID: 2-s2.0-84941805107OAI: oai:DiVA.org:ri-161DiVA, id: diva2:939302
Note

Publication no: A3568

Available from: 2016-06-18 Created: 2016-06-07 Last updated: 2019-07-02Bibliographically approved

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