Morphology and stability of CO2-in-water foams with nonionic hydrocarbon surfactants.

@article{Adkins2010MorphologyAS,
  title={Morphology and stability of CO2-in-water foams with nonionic hydrocarbon surfactants.},
  author={Stephanie S Adkins and Xi Chen and Isabel Chan and Enza Torino and Quoc Phong Nguyen and Aaron Sanders and Keith P. Johnston},
  journal={Langmuir : the ACS journal of surfaces and colloids},
  year={2010},
  volume={26 8},
  pages={5335-48}
}
The morphologies, stabilities, and viscosities of high-pressure carbon dioxide-in-water (C/W) foams (emulsions) formed with branched nonionic hydrocarbon surfactants were investigated by in situ optical microscopy and capillary rheology. Over two dozen hydrocarbon surfactants were shown to stabilize C/W foams with Sauter mean bubble diameters as low as 1 to 2 microm. Coalescence of the C/W foam bubbles was rare for bubbles larger than about 0.5 microm over a 60 h time frame, and Ostwald… CONTINUE READING