The CO2-in-water foam stabilized with the mixture of CO2-soluble surfactant and nonionic surfactant

In recent years, many studies focused on the foam behavior with CO2-soluble surfactants. However, it would be better if the mixing surfactants solution could increase the foam viscosities further and keep the considerable solubility in CO2 comparing with single CO2-soluble surfactant. In this paper, the synergism of the mixture of CO2-soluble surfactant composed of 2 ethoxylated amine headgroups with cocoalkyl tails (C12NEO2) and nonionic...