Commercial Surfactants for Use in CO2 – a Survey
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A. Hebach
Abstract
This paper reappraises the dry cleaning process using compressed Carbon Dioxide as washing fluid, specifically in view to cleaning enhancement options. At first, the cleaning cycle of the process is presented. Thereafter, suitable surfactant classes are discussed against the background of prolific as well as an environmentally benign process. Among the most promising structures are the alcohol ethoxylates. Their physical properties such as solubility, phase behaviour, and interfacial activity were intensely studied. The performance of test-formulations in cleaning tests is promising and already suitable for outer garment cleaning. A new way of enhanced mechanical action was already demonstrated in a lab-scale apparatus.
Kurzfassung
Dieser Artikel bewertet den Reinigungsprozess mit komprimiertem Kohlendoxid vor allem in Hinblick auf eine Reinigungsverstärkung neu. Ausgehend von dem Reinigungszyklus werden für einen Einsatz denkbare Tensidklassen diskutiert. Diese müssen nicht nur gute Reinigungsergebnisse erzielen, sondern zudem auch umweltverträglich sein. Als vielversprechende Tensidklasse sind die Alkoholethoxylate bezüglich Löslichkeit, Phasenverhalten, Grenzflächenverhalten und Reinigungsleistung intensiv untersucht worden. Mit den erzielten Reinigungsleistungen von Testformulierungen kann heute schon Oberbekleidung gut gereinigt werden. Durch einen zusätzlichen neuartigen Mechanikeintrag mittels Clathraten kann der Partikelabtrag deutlich verstärkt werden.
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© 2005, Carl Hanser Publisher, Munich
Artikel in diesem Heft
- Contents/Inhalt
- Contents
- Abstracts
- Abstracts
- Application
- Interactions of Hardness Ions with Polymeric Scale Inhibitors in Aqueous Systems
- Commercial Surfactants for Use in CO2 – a Survey
- Physical Chemistry
- Spreading Characteristics of Aqueous Surfactant Solutions on Polymer Surfaces
- Studies on Flocculation of Egyptian Kaolin Suspensions by Anionic Polyacrylamide in the Presence of Surfactants
- The Influence of Hydrophobic Counterion on the Phase Behavior of Ionic Surfactants
- Synthesis
- Synthesis, Separation and Adsorption of Naphthalene Sulphonate Formaldehyde Condensates
Artikel in diesem Heft
- Contents/Inhalt
- Contents
- Abstracts
- Abstracts
- Application
- Interactions of Hardness Ions with Polymeric Scale Inhibitors in Aqueous Systems
- Commercial Surfactants for Use in CO2 – a Survey
- Physical Chemistry
- Spreading Characteristics of Aqueous Surfactant Solutions on Polymer Surfaces
- Studies on Flocculation of Egyptian Kaolin Suspensions by Anionic Polyacrylamide in the Presence of Surfactants
- The Influence of Hydrophobic Counterion on the Phase Behavior of Ionic Surfactants
- Synthesis
- Synthesis, Separation and Adsorption of Naphthalene Sulphonate Formaldehyde Condensates
