Amphiphilic molecules at superhydrophobic surfaces in water/air and water/oil systems (Abstract/Poster in atti di convegno)

Type
Label
  • Amphiphilic molecules at superhydrophobic surfaces in water/air and water/oil systems (Abstract/Poster in atti di convegno) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Alternative label
  • Ferrari M.; Liggieri L.; Ravera F. (2007)
    Amphiphilic molecules at superhydrophobic surfaces in water/air and water/oil systems
    in 21th Conference of the European Colloid and Interface Society (ECIS), Geneva, Switzerland
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Ferrari M.; Liggieri L.; Ravera F. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • In: 21th Conference of the European Colloid and Interface Society (ECIS) (Geneva, Switzerland, 10-14 September 2007). Proceedings, pp. 416 - 416. ECIS, 2007. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#descrizioneSinteticaDelProdotto
  • On superhydrophobic surfaces, where contact angle with water is greater than 150°, inhibitio of adhesion phenomena and liquid drainage are enhanced making interactions in water environment strongly limited. Chemical composition and geometrical structure of the surface are significant parameters governing the extreme hydrophobicity of such a solid substrate. In this work different amphiphilic substances have been investigated in contact with superhydrophobic surfaces prepared by different methodologies. Adsorption of amphiphilic molecules at solid surfaces often results in the self-assembly into ordinate patterns under parameters like concentration, temperature and ionic strength affecting the shape and the periodic structure. The behaviour in liquid-liquid environment has been also studied with the role played by the partition coefficient on the contact angle at water-oil interface. Due to the presence of surfactants the contact angle is then effectively decreased in a hydrophobic or still uperhydrophobic range where adsorbed molecules can act as a switch from a Cassie to a Wenzel substrate. (literal)
Titolo
  • Amphiphilic molecules at superhydrophobic surfaces in water/air and water/oil systems (literal)
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