A comparative analysis between different ether carboxylic acids with respect to wettability and surface topography of abrasively treated polyester fabrics / V. Dutschk in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 44, N° 6/2007 (12/2007)

[article]  inTENSIDE, SURFACTANTS, DETERGENTS > Vol. 44, N° 6/2007 (12/2007) . - p. 348-355 Titre : A comparative analysis between different ether carboxylic acids with respect to wettability and surface topography of abrasively treated polyester fabrics Type de document : texte imprimé Auteurs : V. Dutschk, Auteur ; S. Myat, Auteur ; J. Märtin ; M. Stolz ; B. Breitzke ; Ch. Cherif ; G. Heinrich Année de publication : 2008 Article en page(s) : p. 348-355 Note générale : Bibliogr. Langues : Anglais (eng) Tags : Ether  carboxylic  acids  Wettability  Surface  topography  Polyester  Woven  and  knitted  fabrics  Abrasive  resistance Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : Wetting properties and surface topography of different polyester fabrics have been determined before and after their mechanical abrasion. As protective finishes, different surface active ether carboxylic acids were used. The influence of different weave types of the fabrics – woven and knitted – on their abrasive resistance was revealed. A comparative analysis between different ether carbon acids with respect to wettability of fabrics, surface topography parameters and mechanical treatment by abrasion was done. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3196 [article]

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Low foaming surfactant systems for industrial applications / B. Jakobs in SOFW JOURNAL, Vol. 131, N° 6 (06/2005)

[article]  inSOFW JOURNAL > Vol. 131, N° 6 (06/2005) . - p. 63-68 Titre : Low foaming surfactant systems for industrial applications Type de document : texte imprimé Auteurs : B. Jakobs, Auteur ; B. Breitzke, Auteur ; M. Stolz, Auteur ; R. Verzellino, Auteur Année de publication : 2005 Article en page(s) : p. 63-68 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Alcoxylates Détergents Diagrammes de phases Mouillage (chimie des surfaces) Mousse (chimie) Surfactants Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : In many applications the surfactant system has to meet contradicting physical requirements. The surfactants should provide not only excellent cleaning performance but additionally exhibit low foaming properties. However, the same physical parameters that need to be adjusted to ensure effective wetting power are on the other hand responsible for the effective formation and stabilization of foam. A good basis for a deeper understanding of foaming behavior offer phase behavior studies. In the case of alcohol ethoxylates a lot of those studies exist and the connection between the water solubility, the cloud point phenomena and the foaming behavior is generally recognized. However, the situation is more complex in the case of the alcohol EO-PO adducts, which are empirically recognized as low foaming agents. Up to now there is no coherent set of physico-chemical studies to provide a basic understanding of the low foaming behavior. This presentation gives some insight into the principles lying behind the foaming action of surfactants and compares the physico-chemical characteristics of alcohol ethoxylates and EO-PO adducts. The results can give the formulator guidance for selecting low foaming surfactant for more demanding applications. Note de contenu : - Application properties - Defoaming mechanism - FIGURES : 1. Cotton wetting times and Schlag foam volumes of ITDA ethoxylates as function of EO grade or HLB, respectively - 2. Cotton wetting times and turbine foam volumes of alcohol alkoxylates as function of HLB - 3. Phase diagram of lin. C12 ethoxylate as function of temperature and surfactant concentration (schematically redrawn from - 4. Schematics of the phase separation and the spreading and bridging mechanism in antifoaming - 5. Phase diagram of FT oxo C12/C13 alkoxylate as function of temperature and surfactant concentration Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28125 [article]

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The Influence of Different Ether Carboxylic Acids on Polyester Fibre Friction / V. Dutschk in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 44, N° 5/2007 (10-11/2007)

[article]  inTENSIDE, SURFACTANTS, DETERGENTS > Vol. 44, N° 5/2007 (10-11/2007) . - p. 270-273 Titre : The Influence of Different Ether Carboxylic Acids on Polyester Fibre Friction Type de document : texte imprimé Auteurs : V. Dutschk, Auteur ; G. Heinrich, Auteur ; Ch. Cherif, Auteur ; B. Breitzke, Auteur ; M. Stolz, Auteur ; J. Märtin, Auteur ; Harald Brünig, Auteur ; S. Myat, Auteur Année de publication : 2007 Article en page(s) : p. 270-273 Note générale : Bibliogr. Langues : Anglais (eng) Tags : Ether  carboxylic  acids  Spin  finishes  Polyester  Fibre  friction  Tensile  force  Lubricants Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : The influence of different surface active ether carboxylic acids as spin finishes on polyester fibre friction has been studied. The fibre friction was indirectly assessed through measurements of yarn tensile forces during the melt-spinning process. After manufacturing, the friction of fibre against steel was evaluated using the method of inclined plane. Results for the static fibre-steel friction coefficient obtained are in good agreement with the yarn tensile force data. The influence of different finishing agents as lubricants on the fibre friction was revealed. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3202 [article]

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