Liquid Oil That Flows in Spaces of Aqueous Foam without Defoaming

Sonoda, Junko; Sakai, Tomomi; Inomata, Yukio

doi:10.1021/jp501599v

Cited by 15 publications

(22 citation statements)

References 33 publications

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“…Yet, stable OLF can be obtained using a mixture of surfactant and co-surfactant such as Myristic Acid or Palmitic Acid, also known as "foam booster" [26,14]. In particular, the foam stability clearly increases with the relative concentration of foam booster: above a certain relative concentration of betaine, the foams are stable and do not decay within the experimental timescale [26,14,30]. Why foam booster increases the stability of OLF is not perfectly known.…”

Section: Which Oil/foaming Solution?mentioning

confidence: 99%

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Stable oil-laden foams: Formation and evolution

Mensire

Lorenceau

2017

Advances in Colloid and Interface Science

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The interaction between oil and foam has been the subject of various studies. Indeed, oil can be an efficient defoaming agent, which can be highly valuable in various industrial applications where undesired foaming may occur, as seen in jet-dyeing processes or waste water treatment plant. However, oil and foam can also constructively interact as observed in detergency, fire-fighting, food and petroleum industries, where oil can be in the foam structure or put into contact with the foam without observing a catastrophic break-up of the foam. Under specific physico-chemistry conditions, the oil phase can even be trapped inside the aqueous network of the foam, thus providing interesting complex materials made of three different fluid phases that we name oil-laden foam (OLF). In this review, we focus on such systems, with a special emphasis on dry OLF, i.e. with a total liquid volume fraction, ε smaller than 5%. We first try to clarify the physical and chemical conditions for these systems to appear, we review the different techniques of the literature to obtain them. Then we discuss their structure and identify two different OLF morphologies, named foamed emulsion, in which small oil globules are comprised within the network of the aqueous foam and biliquid foams, where the oil also comprised in the aqueous foam network is continuous at the scale of several bubbles. Last, we review the state of the art of their evolution in particular concerning topological changes, coalescence, coarsening and drainage.

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Section: Which Oil/foaming Solution?mentioning

confidence: 99%

“…Copyright, RSC, 2012. Figure reprinted with the permission from [30]. Copyright,, ACS, 2014. b) Imbibition of a3D foam from an horizontal oil slick.…”

Section: Foaming An Emulsionmentioning

confidence: 99%

Stable oil-laden foams: Formation and evolution

Mensire

Lorenceau

2017

Advances in Colloid and Interface Science

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“…New nanotechnology sciences based on bio‐mimicry engineering and bubble chemistry are very interesting approaches for understanding the materials science. These are on the verge of becoming a great approaches for controlling bulk (gel) mechanical properties on the basis of nanoscale control, and which would be destined to grow further to lead the advanced materials science.…”

Section: Discussionmentioning

confidence: 99%

Recent Advances in Heterogeneous Catalysis with Controlled Nanostructured Precious Monometals

Nishimura

Ebitani

2016

ChemCatChem

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Achievements in advanced materials science have required close cooperation with innovations in nanotechnology. First, in this Minireview, two impressive examples of close relationships between materials science and nanotechnology are introduced by using the histories on the Lycuurgus Cup and H2 storage/release phenomena in Pd crystals. In the main sections, the recent advanced approaches and the impressive scope of size‐ and shape‐controlled precious monometallic nanoparticle catalysts and the recent advances in organic‐stabilizer‐mediated specific catalysis are introduced. Heterogeneous catalysis is susceptible to nanoscale surface functionality and morphology, therefore, significant research has been directed towards controlled nanostructured catalysis associated with new nanotechnology for synthesis and analysis techniques. These discussions are with a view for future innovations in catalysis combined with nanotechnology.

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“…New nanotechnology sciences based on bio-mimicry engineering [84] andb ubble chemistry [85] are very interesting approaches for understanding the materials science. These are on the verge of becoming ag reat approaches for controlling bulk (gel) mechanical properties on the basis of nanoscale control, [86] andw hich would be destined to grow furthert ol ead the advanced materials science.…”

Section: Discussionmentioning

confidence: 99%