Foam-Scatter: a workshop on foam characterization

Session

Oral Session

17 May 2022, 15:45

Science Building/rdc 036-0 - Salle Séminaires (Science Building)

2. Crystalline particles from fatty components as efficient non-aqueous foam stabilizer

anne-laure fameau (INRAE), Yingzhen Ma (2. Louisiana State University, Cain Department of Chemical Engineering, Baton Rouge, USA)

Liquid foams are complex colloidal systems based on gas bubbles dispersed in a liquid continuous phase 1.Two different categories of liquid foams exist: aqueous or non-aqueous. In contrary to aqueous foams, which have been extensively studied, non-aqueous foams represent a new promising emerging field 1. Two types of non-aqueous foams are gaining interest: oil foams based on vegetable oil...

4. Imaging 3D foam flows using fast X-ray tomography: hopper flow and plate-plate rheometer

Benjamin Dollet (Laboratoire Interdisciplinaire de Physique, CNRS and Univ. Grenoble Alpes, France)

Liquid foams are dispersions of gas bubbles in close contact inside a liquid phase. They
are found in various industrial applications including food, cosmetics, oil recovery, or soil
remediation. They belong to the class of soft glassy materials that are known to exhibit
peculiar rheological behaviors, like nonlinear and non-local dynamics [Goyon et al., Nature (2008)], due to plastic...

5. Physics of oat drink foams: influence of pre-treatment on foam stability

Judith Hege (Max Planck Institute for Polymer Research)

Nowadays, the demand for vegan and sustainable food products is rising and oat drink has become a popular milk-alternative. For various kinds of applications, a capacity to form creamy, stable, homogeneous foams is required for such drinks. Such macroscopic foam properties are highly dependent on molecular interactions at the air-water interface and protein kinetics within the lamellae....

8. Probing soapy interface properties with linear and nonlinear optics

Oriane BONHOMME (Institut. Lumière Matière)

Features of amphiphilic molecules at interfaces are of crucial interest to understand macroscopic foam properties. For example, literature shows that one can change the rigidity of a soapy interface, and thus a foam life-time, only by a little change in the formulation of the soapy solution. If the link between microscopic and macroscopic properties of covered interfaces is well established,...

3. SANS technique: a complementary tool to study the stability of foams

Julien Lamolinairie

Foams are muli-scale non-equilibrium systems so that it is still difficult to predict their foamabilities and metastabilities. In order to better understand the physico-chemical factors that affect the foams kinetics at different structural scale, it was necessary to develop coupled techniques that would provide structural informa+on on the foam within a column and from nanometric up to...