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Impact of the Hydrophobic Phase on the Interfacial Dilational Rheology of Alkoxy Carboxylate/Cetyltrimethyl Ammonium Chloride Mixtures.
Langmuir
October 2024
Sinopec Key Lab of Surfactants for EOR, Sinopec Shanghai Research Institute of Petrochemical Technology Company, Ltd., 1658 Pudong Beilu, Shanghai 201208, P. R. China.
Article Synopsis
- The study investigates the interfacial dilational rheology of a mixture of anionic and cationic surfactants at various interfaces, focusing on how different hydrophobic phases influence their behavior.
- The dilational modulus increases linearly with interfacial pressure for most interfaces tested, but significantly drops when toluene is involved due to unique interactions between toluene and surfactant molecules.
- The findings highlight the importance of surfactant interactions at interfaces, suggesting that while the surfactants can perform well in alkane environments, they struggle in the presence of aromatic compounds like toluene, thereby influencing their applications in enhanced oil recovery and other industrial fields.