| Titre : |
Tendency to bleeding for organic pigments |
| Type de document : |
texte imprimé |
| Auteurs : |
Dehai Wang, Auteur ; Thadeus Schauer, Auteur ; Marc Entenmann, Auteur |
| Année de publication : |
2000 |
| Article en page(s) : |
p. 52-59 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The evaluation of a tendency to bleeding for pigments in coatings was carried out on the example of copper phthalocyanin in an acrylic water-based coating. It was found that the surface state of both the testing coating and the white top one affects greatly the bleeding tendency of pigments. It was also demonstrated that the bleeding effect can be accelerated if the white top coating of the test specimen is suitably mechanically or chemically treated and aged under elevated temperature. On the basis of colour measurements, new parameters were introduced for the quantitative assessment of the bleeding effect. |
| Note de contenu : |
- The experiment
- Colorimetric assessment to quantify the bleeding effect
- Mechanical treatment influences positively the test conditions
- Surface treatment of the top coating enhances and accelerates the effect
- Aging temperature and time influence the bleeding time effect
|
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10997 |
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 5/00 (05/2000) . - p. 52-59
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