BEGIN:VCALENDAR
VERSION:2.0
METHOD:PUBLISH
CALSCALE:GREGORIAN
PRODID:-//WordPress - MECv6.4.2//EN
X-ORIGINAL-URL:https://www.lps.u-psud.fr/
X-WR-CALNAME:Laboratoire de physique des Solides
X-WR-CALDESC:
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-PUBLISHED-TTL:PT1H
X-MS-OLK-FORCEINSPECTOROPEN:TRUE
BEGIN:VEVENT
CLASS:PUBLIC
DTSTART;TZID=Europe/Paris:20220422T110000
DTEND;TZID=Europe/Paris:20220422T120000
DTSTAMP:20220221T073600
UID:MEC-b58ac8403eb9cf17fae1dcd16df71fde@lps.u-psud.fr
CREATED:20220221
LAST-MODIFIED:20220221
PRIORITY:5
TRANSP:OPAQUE
SUMMARY:François LEQUEUX – Foamability and bubble lifetime of oil mixtures
DESCRIPTION:Foamability and bubble lifetime of oil mixtures\nClassical aqueous foams are stabilized by surfactants. The role of surfactants is to generate repulsive interactions between thin films interfaces and thus to stabilize foams. On the contrary, for oil mixtures, thin films undergo only attractive Van der Waal interaction, and thus cannot be stable. However, oil mixtures (like for instance decane /toluene mixtures) can form foams that last for a tens of seconds, a value large enough to be an annoyance for many situations (oil extraction, lubricants, food industry). This phenomenon has been observed 50 years ago but not yet understood.\nWe will explain the origin of the foaming behavior of oil mixtures, and discuss their specific mode of bursting (see image below). Indeed, foam life and death that can be understood quantitatively, due to the simplicity of oil mixtures physico-chemistry.\nFrançois LEQUEUX, Sciences et Ingénierie de la Matière Molle, ESPCI/PARIS/France\nFrancois.lequeux@espci.fr\n
URL:https://www.lps.u-psud.fr/events/francois-lequeux-foamability-and-bubble-lifetime-of-oil-mixtures-2/
CATEGORIES:Séminaire Matière Molle Phys-Bio
LOCATION:amphi Blandin
ATTACH;FMTTYPE=image/jpeg:https://www.lps.u-psud.fr/wp-content/uploads/2021/11/imageFL.jpg
END:VEVENT
END:VCALENDAR