| Titre : |
APE-free phosphate surfactants |
| Type de document : |
texte imprimé |
| Année de publication : |
2008 |
| Article en page(s) : |
p. 22-26 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Agents mouillants
Copolymère styrène acrylique
Dispersions et suspensions
Ester de phosphate
Formulation (Génie chimique)
Latex
Polyacryliques
Revêtements -- Additifs:Peinture -- Additifs
Surfactants
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Phosphate ester surfactants have been widely used as primary anionic emulsifiers for emulsion polymerisation for many years. We are unaware of any published data related to phosphate ester product to effectiveness in latex syntheses. The introduction of this type of surfactant into paint formulation as a wetting and dispersing agent significantly enhance the overhall paint performance on gloss, colour acceptance and stain removal performance. Certain phosphate esters in low VOC formulations can replace glycols and other volatile reagents to improve open time, freeze-thaw and heat stability. The work described in this paper was undertaken to provide a framework for the use of this type of surfactant in pure-acrylic, styrene-acrylic latex synthesis. The overhall performance of phosphate ester surfactant in paint formulation is presented. The APE free Rhodafac employed in this study are complex phosphate ester of polyoxyethylene nonionic surfactants. They are mixtures of both mono- and diesters of the following generic structures. Phosphates ester surfactants are produced acid derivatives. Tipically, the commercial phosphate ester surfactant products are a mixture of monoester, diester and unreacted alcohols and phosphorics acids. Unreacted phosphoric acids are normally present as impurities. Typîcal levels of residual acids are given in. Rhodia's phosphation technology could produce products with superior mono / di alkyl phosphate (MAP/DAP) ratios and lower phosphoric acid content. |
| Note de contenu : |
- EXPERIMENTAL : latex synthesis recipes and procedures - Salt solutions of Rhodafac surfactant - Latex properties - Paint formulation
- RESULTS AND DISCUSSION : Phosphate ester surfactant in EP - Phosphate ester surfactant in paint application |
| En ligne : |
https://drive.google.com/file/d/1gqnlVO8945uNOAX1NN_W8aJ5rCHppSDx/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27219 |
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 198, N° 4522 (03/2008) . - p. 22-26
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APE-free phosphate surfactants in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 198, N° 4522 (03/2008)
