Chemistry Reference
In-Depth Information
Fig. 2.4
Effect of flow on the evolution of interfacial tension. Data: courtesy of Jean-Baptiste
Fleury
Fig. 2.5
m wide) at very low volume fraction of the contin-
uous oil phase (below 10%).
b
Micrograph of an emulsion like the one shown in a, taken at the
fluorescence wavelength of the dye (di-4-anepps) which was fed into the upper row of droplets.
Illumination is by UV light.
Left
: as prepared.
Right
: a few seconds later, when membranes have
formed.
c
Geometry of Plateau borders, where three oil lamellae (or membranes) meet at 120
◦
.
Left
as prepared. The droplet surfaces meet tangentially.
Right
after membranes have formed. The
contact angle,
θ
, at the end of each membrane has attained a finite value
a
Gel emulsion in a channel (500
µ
