[article]
| Titre : |
Benefits of the surfactant along the value chain |
| Type de document : |
texte imprimé |
| Auteurs : |
Christoph Söffing, Auteur |
| Année de publication : |
2014 |
| Article en page(s) : |
p. 16-18 |
| Langues : |
Anglais (eng) |
| Catégories : |
Copolymère styrène acrylique
Emulsifiants
Ethoxylate d'alcool
Latex
Revêtement mural:Peinture murale
Revêtements en bâtiment:Peinture en bâtiment
Revêtements intérieurs:Peinture intérieure
Sulfate d'ammonium
Sulfate de sodiumLe sulfate de sodium est un composé chimique courant formé d'un ion sulfate et de deux ions sodium. Lorsqu'il est anhydre, il prend l'apparence d'un solide cristallin blanc de formule chimique Na2SO4. La forme déca-hydratée, Na2SO4·10H2O, est connue sous le nom de sel de Glauber ou mirabilite. Parmi un grand nombre d'usages différents, les principales utilisations du sulfate de sodium concernent la fabrication des détergents et dans le procédé de Kraft de traitement de la pâte à papier. La moitié environ de la production mondiale provient de l'extraction de la forme naturelle décahydratée, et l'autre moitié de productions secondaires dans des procédés de l'industrie chimique.
Surfactants
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Surfactants are surface active ingredients with multiple functionalities. They are used as emulsifiers, wetting agents, dispersants and detergent and/or foaming agents, in a variety of applications ranging from cosmetics and cleaners, to agrochemicals, adhesives and palots.
In order to offer a value-added solution to customers, the chemical industry must recommend the most appropriate surfactant to meet the requirements and challenges of both its immediate customers and their consumers. A good understanding of the value chain steps is, therefore, essential.
Clariant, a world leader in speciality chemicals, has decades of experience in developing surfactants for emulsion polymerisation. To support its customers in identifying the most appropriate emulsifier, it tested more than 25 different anionic and nonionic surfactants with improved environmental profiles (ie APEO-free, VOC-free, hazard label-free) against market standards such as ethoxylated [EO] alkyl ether sulphates and nonylphenol ethoxylates.
The objective was to understand the emulsifiers' contribution to a more efficient polymerisation process, to find the best emulsifier concentration to achieve top grade latex quality and to evaluate the performance of the obtained pigment binder in a formulated and tinted architectural paint.
To condense the ample screening test findings, this article features concrete exemples for sodium and ammonium sulphates (anionic emulsifier) and fatty alcohol ethoxylates (nonionic emulsifier) used in the production of styrene acrylic latex emulsions. |
| Note de contenu : |
- Profiles of the selected surfactants
- Impact of the emulsifiers on particle size distribution & coagulum formation
- Impact of emulsifiers on latex quality
- Impact of emulsifiers in interior wall paints |
| En ligne : |
https://drive.google.com/file/d/1d5CvwfJT14FEdbuwMuQIK-R7us4vveVI/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=22666 |
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 204, N° 4603 (12/2014) . - p. 16-18
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Benefits of the surfactant along the value chain in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 204, N° 4603 (12/2014)
