| Titre : |
A simple laboratory method for evaluating the performance of rinse aids |
| Type de document : |
texte imprimé |
| Auteurs : |
Bastian R. Wulff, Auteur |
| Année de publication : |
2023 |
| Article en page(s) : |
p. 12-18 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Automatisation
Détergents
Formulation (Génie chimique)
Méthodologie
Rinçage
|
| Index. décimale : |
668.1 Agents tensioactifs : savons, détergents |
| Résumé : |
Determining the surface tension of surfactant solutions sounds simple, and the state of the art for decades has been Pendant Drop Tensiometry (Drop Shape Analysis). According to DIN/EN/ISO standards and OECD guidelines, the only legally existing methods in the field of surfactants are the ring/plate methods, basically from the pre-computer era. For many technical surfactants and especially for surface-active polymers, these vintage methods have serious technical shortcomings caused by an inherently uncontrolled surface age. This will be demonstrated by discussing the surface tension results of two associative thickeners. Normalization activities have been initiated to "legalize" the current state of the art, Pendant Drop Tensiometry, also in the field of surfactants. |
| Note de contenu : |
- Description of the method
- Practical application
- General differentiability
- Influence of the material
- Influence of temperature
- Testing the practical relevance of the method |
| En ligne : |
https://drive.google.com/file/d/1IZdom7Uwda_NSXRA0dld_YvEpTyJSnEd/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40096 |
in SOFW JOURNAL > Vol. 149, N° 10 (10/2023) . - p. 12-18
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