The FASES Project on Investigation of Emulsions and Interfacial Properties onboard the ISS (Abstract/Poster in convegno)

Type
Label
  • The FASES Project on Investigation of Emulsions and Interfacial Properties onboard the ISS (Abstract/Poster in convegno) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Alternative label
  • Liggieri, L. ; Ravera, F. ; Ferrari, M. ; Santini, E. ; Miller, R. ; Krägel, J. ; Javadi, A. ; Loglio, G. ; Clausse, D. ; Pezron, I ; Drelich, A ; Antoni, M. ; Schmitt, M. ; Limage, S. ; Karapantsios, T. ; Dutschk, V. ; Rubio, R.G. ; Ouazzani, J. ; Makievski, A. (2011)
    The FASES Project on Investigation of Emulsions and Interfacial Properties onboard the ISS
    in 4th International Symposium on Physical Sciences in Space, Bon, Germany
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Liggieri, L. ; Ravera, F. ; Ferrari, M. ; Santini, E. ; Miller, R. ; Krägel, J. ; Javadi, A. ; Loglio, G. ; Clausse, D. ; Pezron, I ; Drelich, A ; Antoni, M. ; Schmitt, M. ; Limage, S. ; Karapantsios, T. ; Dutschk, V. ; Rubio, R.G. ; Ouazzani, J. ; Makievski, A. (literal)
Note
  • Poster (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR-Institute for Enrgetics and Interphases, (ITALY); Max-Planck Insitute of Colloids and Interfaces, (GERMANY); University of Florence, (ITALY); Univ. Technologie Compiegne, (FRANCE); Université Paul Cezanne, (FRANCE); Aristotle University, (GREECE); University of Twente, (NETHERLANDS); Univ. Complutense Madrid, (SPAIN); Arcofluid, (FRANCE); Sinterface technologies, (GERMANY) (literal)
Titolo
  • The FASES Project on Investigation of Emulsions and Interfacial Properties onboard the ISS (literal)
Abstract
  • Emulsions are fine dispersions of immiscible liquids (for example, oil and water) widespread in nature and in industrial products. Therefore mastering methodologies for formulating stable emulsions with tailored properties (for example, in food technologies or for cosmetics and pharmaceuticals), or to destabilise on purpose very stable emulsions (for example, for crude oil upstream) is an important technological target. Emulsions are stabilised against separation by means of surface-active molecules, generically known as surfactants, which segregating at the interface prevents the coalescence of the disperse droplets. MAP-FASES (Fundamental and Applied Studies in Emulsion Stability) is a research project supported by the European Space Agency, aimed at investigating the relationships between the interfacial properties of surfactant adsorption layers at liquid-liquid interfaces and the stability and features of the corresponding emulsions. In order to approach such important topic, the FASES project covers a wide spectrum of investigations and modellings: from the interaction of surfactants with particles, to droplet dynamics in emulsions, passing through the properties of single liquid-liquid interfaces and films.The research programme also includes the investigation of particle-stabilised emulsions. These emulsions are widely diffuse in nature (Pickering emulsions) and have an increasing importance for different products, technologies and applicative topics. Benchmark experiments are planned onboard the International Space Station (ISS), exploiting the purely diffusive conditions and the absence of buoyancy, which allows for the accurate investigation of interfacial properties and of the fundamental processes involved in emulsion destabilisation. In the framework of the project innovative diagnostics have been conceived and implemented into suitable experiment modules for the ISS. In particular, the experiment container FASES for the Fluid Science Laboratory, designed to investigate collective properties of the emulsion, such as, destabilisation process and droplets interaction and dynamics. The module allows for the serial investigation of emulsion samples of different nature (water-in-oil, oil-in-water, surfactant-stabilised, particle-stabilised) and composition (water/oil ratio, surfactant and particle concentrations) by means of two diagnostics. Optical Scan Microtomography is utilised for the investigation of transparent (dilute) emulsions, while a methodology utilising Differential Scan Calorimetry is used to investigate opaque (concentrate) emulsions. Properties of oil-water interfaces relevant for emulsion stability, such as dilational viscoelasticity of surfactant adsorbed layers and surfactant adsorption kinetics, are instead investigated by means of the facility FASTER (Facility for Adsorption and Surface Tension), based on the application of Capillary Pressure Tensiometry. Here we provide an overview of the FASES research programme and of the utilised experimental techniques and facilities. (literal)
Prodotto di
Autore CNR

Incoming links:


Autore CNR di
Prodotto
data.CNR.it