Electrodeposited silica film interlayer for active corrosion protection
| Autor: | Jun-Bo Xu, Yan-Hua Liu, Jiming Hu, Jin-Tao Zhang |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
General Chemical Engineering chemistry.chemical_element 02 engineering and technology Zinc Substrate (printing) engineering.material 010402 general chemistry Electrochemistry 01 natural sciences Corrosion Coating medicine General Materials Science Composite material Polyvinylpyrrolidone Metallurgy Nanocontainer General Chemistry Epoxy 021001 nanoscience & nanotechnology 0104 chemical sciences chemistry visual_art visual_art.visual_art_medium engineering 0210 nano-technology medicine.drug |
| Zdroj: | Corrosion Science. 120:61-74 |
| ISSN: | 0010-938X |
| DOI: | 10.1016/j.corsci.2017.01.017 |
| Popis: | In the present work, a pragmatic painting system with promising active protection property is proposed using electrodeposited silica (e-SiO2) interlayer as the nanocontainer of inhibitors. A 10 μm thick, highly porous and well adherent sol-gel silica film was prepared at mild steel substrate under the aid of electro-assist technique. Such film was capable of embedding desired amount of corrosion inhibitors (polyvinylpyrrolidone and zinc gluconate), upon which the epoxy coating was covered. Both the accelerated corrosion tests on the scratched coating and the in-situ electrochemical measurements of intact sample revealed the significantly improved corrosion resistance of the novel coating system. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect