| Titre : |
Determination of the dye penetration rate in porous aluminum oxide using Raman spectroscopy |
| Type de document : |
texte imprimé |
| Auteurs : |
Tadas Matijosius, Auteur ; Svajus J. Asadauskas, Auteur ; Gedvidas Bikulcius, Auteur ; Algirdas Selskis, Auteur ; Sigitas Jankauskas, Auteur ; Jevgenij Visniakov, Auteur ; Ilja Ignatjev, Auteur |
| Année de publication : |
2019 |
| Article en page(s) : |
p. 275-282 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Alumine
Caractérisation
Colorants
Matériaux poreux
Métaux -- Oxydation anodique
Pénétration (physique)
Spectroscopie Raman
|
| Index. décimale : |
667.2 Colorants et pigments |
| Résumé : |
Oxidised aluminum coatings are useful in various high technology applications to protect surfaces from negative environmental effects. In this study, aluminum discs and foils of industrial alloys were anodised in a sulphuric acid/oxalic acid electrolyte. Scanning electron microscopy was used to determine the pore diameter, distribution and surface porosity. The anodising procedure was adapted to produce near‐hollow templates on aluminium foil, onto which aqueous solutions of commercial chromium‐complexed anionic azodyes were dropped. Raman spectroscopy was used to detect the penetration of dye compounds based on the most intensive vibrational modes. Each dye was successfully monitored to assess its penetration rate and behaviour in the anodised coating. This method could be applied to characterise newly developed organic dyes for aluminum colouring. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Procedure - Characterisation
- RESULTS AND DISCUSSION : Structural aspects of anodised specimens - Spectroscopic observations of undyed surfaces - Characterisation of dyes - Measurement of dye penetration rates |
| DOI : |
10.1111/cote.12404 |
| En ligne : |
https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12404 |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32830 |
in COLORATION TECHNOLOGY > Vol. 135, N° 4 (08/2019) . - p. 275-282
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