Dynamics of surfactant-driven fracture of particle rafts
Original entry by Joerg Fritz, AP225 Fall 2009
Dominic Vella, Ho-Young Kim, Pascale Aussillous, and L. Mahadevan: Physical Review Letters, 2006, 96, pp 178301-1 to 178301-4.
If a densely packed monolayer of particles (a particle raft) at the interface between two fluids with a large difference of surface pressure (such as air and water) comes into contact with surfactants, the monolayer shows a rick cracking behavior. This can for example be observed when drinking black tea, where tea particles hanging together at the surface are being broken apart by the addition of milk.
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