The role of surfactant structure on foam behaviour

Tan, Su Nee; Fornasiero, Daniel; Sedev, Rossen; Ralston, John

doi:10.1016/j.colsurfa.2004.12.060

Cited by 56 publications

(30 citation statements)

References 11 publications

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“…It is well known that the nature of the surfactant (ionic or non-ionic) as well as its molecular structure strongly affect the properties of foam films (reviewed in [37,38]) and foams [28,39,34,40,41]. The surfactants used in the study at hand have the same hydrophobic straight C 12 chain but different head groups with one being cationic (C 12 TAB) and one non-ionic (C 12 DMPO).…”

Section: Introductionmentioning

confidence: 99%

Foaming properties of mixtures of a non-ionic (C12DMPO) and an ionic surfactant (C12TAB)

Carey

Stubenrauch

2010

Journal of Colloid and Interface Science

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Section: Introductionmentioning

confidence: 99%

Foaming properties of mixtures of a non-ionic (C12DMPO) and an ionic surfactant (C12TAB)

Carey

Stubenrauch

2010

Journal of Colloid and Interface Science

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“…Adsorption of surfactants at the air-water interface plays an important role in the formation of foam and its stability. The Gibbs surface adsorption equation was used to calculate the surface excess for all the surfactants as follows (Amaral et al 2008;Azira et al 2008;Tan et al 2005;Wang and Chen 2006):…”

Section: Foamability and Foam Stabilitymentioning

confidence: 99%

Enhanced oil recovery by nonionic surfactants considering micellization, surface, and foaming properties

Bera¹,

Mandal

Belhaj³

et al. 2017

Pet. Sci.

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Surfactants for enhanced oil recovery are important to study due to their special characteristics like foam generation, lowering interfacial tension between oleic and aqueous phases, and wettability alteration of reservoir rock surfaces. Foam is a good mobility control agent in enhanced oil recovery for improving the mobility ratio. In the present work, the foaming behavior of three nonionic ethoxylated surfactants, namely Tergitol 15-S-7, Tergitol 15-S-9, and Tergitol 15-S-12, was studied experimentally. Among the surfactants, Tergitol 15-S-12 shows the highest foamability. The effect of NaCl concentration and synthetic seawater on foaming behavior of the surfactants was investigated by the test-tube shaking method. The critical micelle concentrations of aqueous solutions of the different nonionic surfactants were measured at 300 K. It was found that the critical micelle concentrations of all surfactants also increased with increasing ethylene oxide number. Dynamic light scattering experiments were performed to investigate the micelle sizes of the surfactants at their respective critical micelle concentrations. Core flooding experiments were carried out in sand packs using the surfactant solutions. It was found that 22% additional oil was recovered in the case of all the surfactants over secondary water flooding. Tergitol 15-S-12 exhibited the maximum additional oil recovery which is more than 26% after water injection.

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“…Other authors use surfactants to stabilise the foams and control the pore size [11][12][13][14][15][16]. Surfactants were not used in this study.…”

Section: Discussionmentioning

confidence: 92%

“…14 with increasing sintering temperature. However the aim for bioceramics is compressive strength closer to that of cancellous bone (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12) to match their clinical application [10]. The foamed alumina did not attain such high compressive strength values however the mechanical strength achieved and the combination with high porosity and large pore size is a significant result.…”

Section: Discussionmentioning

confidence: 94%