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2 oct. 2023 · Les Tweens® sont donc des Spans® modifiés. Pas des jumeaux donc (pas des « twins »), mais plutôt des faux-jumeaux avec un parent commun (le sorbitan estérifié). Des faux jumeaux, aux tempéraments bien différents et aux affections différentes (les Tweens® aiment autant l’eau que les Spans® l’huile !).
The Spans and Tweens are a range of mild nonionic surfactants providing formulating benefits in a number of Home Care applications. Croda’s Span and Tween materials have long-standing food and pharmacopoeia approval with a safe history of use.
Tween and span are widely used surfactant in pharmaceutical industry. Many times, people do not understand the differences in properties of the two materials...
Les esters de sorbitane sont parfois désignés par les noms de marque Span ou Tween [1]. Six d'entre eux sont utilisés comme additifs alimentaires.
13 sept. 2000 · Our data indicate that mixtures of Tween 80 (polyoxyethylene sorbitan monoleate) with Span 80 (sorbitan monooleate), Span 83 (sorbitan sesquioleate), or Span 85 (sorbitan trioleate) form expanded mixed monolayer films at the planar air−water interface.
As a non-ionic viscous liquid, tweens are a class of emulsifiers used in pharmaceuticals and food preparation. Tween® 20 and Tween® 80 are both biocompatible surfactants used in food, biotechnical, and pharmaceutical applications.
Spans and Tweens are key emulsifying agents for a number of applications. By using combinations of Spans with their corresponding Tweens, it is possible to prepare a variety of oil in water and water in oil emulsion systems. Span 80 is excellent for water in oil emulsification of hydrocarbons and is particularly useful in aerosol
