The inhibitive action of metacryloxypropylmethoxysilane (MAOS) on aluminium corrosion in NaCl solutions
| Autor: | Laura Chiaruttini, Anna Maria Beccaria |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Aluminium oxides
Aqueous solution General Chemical Engineering Inorganic chemistry chemistry.chemical_element General Chemistry Electrochemistry Corrosion law.invention Corrosion inhibitor chemistry.chemical_compound X-ray photoelectron spectroscopy chemistry Optical microscope law Aluminium General Materials Science |
| Zdroj: | Corrosion Science. 41:885-899 |
| ISSN: | 0010-938X |
| DOI: | 10.1016/s0010-938x(98)00161-9 |
| Popis: | The inhibitive action of MAOS (metacryloxypropylmethoxysilane) used for silanising pre-treatment on aluminium corrosion in NaCl aqueous 3.5% solutions has been examined. Free corrosion and electrochemical tests (potentiodynamic polarisation and electrochemical impedance) were performed to characterise the resistance of pre-treated specimens against general and localised corrosion. The surface of the specimens was examined by XPS, FT/IR and optical microscopy before and after immersion in NaCl solution. It was found that silanising inhibits general and localised corrosion of aluminium because of the formation of an Al–siloxane polymeric film, the inhibitive action of which increases with increasing immersion time due to the synergistic effect of aluminium oxides precipitated as corrosion products on aluminium surfaces. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect