(144d) Novel Colloids for the Stabilization of Foams and Emulsions
AIChE Annual Meeting
2010 Annual Meeting
Engineering Sciences and Fundamentals
Emulsions and Foams II
Monday, November 8, 2010 - 4:15pm to 4:35pm
The ability of particles to stabilize two-phase dispersions has been intensely investigated in recent decades. A number of advantages, compared to molecular surfactants, have been shown for emulsion stabilization, though much fewer for foam stabilization. We have previously reported a new class of particle stabilizers of anisotropic shape for making superstable foams. Here we report the fabrication of particles containing naturally derived biopolymer for the stabilization of foams. These colloid stabilizers are multifunctional and may be designed for custom delivery of functional ingredients, or on-demand destabilization of the foam. Fine control of the surface properties of the stabilizers is reported and molecular level rearrangement effects are discussed. A new general strategy for designing multifunctional foam stabilizers is presented.