| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Ketoja, Jukka A.
VTT Technical Research Centre of Finland
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2022Lignin interdiffusion - a mechanism behind improved wet strength
- 2022Utilizing and Valorizing Oat and Barley Straw as an Alternative Source of Lignocellulosic Fiberscitations
- 2022Utilizing and Valorizing Oat and Barley Straw as an Alternative Source of Lignocellulosic Fiberscitations
- 2021General mean-field theory to predict stress-compression behaviour of lightweight fibrous materials
- 2020Crossover from mean-field compression to collective phenomena in low-density foam-formed fiber materialcitations
- 2018Foam-formed fibre materials
- 2018Effect of cellulosic fibers on foam dynamics
- 2017Novel biobased micro- and nanomaterials in porous foam formed structures
- 2017Design-driven integrated development of technical and perceptual qualities in foam-formed cellulose fibre materialscitations
- 2017Design-driven integrated development of technical and perceptual qualities in foam-formed cellulose fibre materialscitations
- 2016Tailoring the microporous structure of fibre materials with foam carrier
- 2016Porous structure of fibre networks formed by a foaming process: a comparative study of different characterization techniquescitations
- 2015The effect of physical adhesion promotion treatments on interfacial adhesion in cellulose-epoxy
- 2014Wet fibre-laden foams in axial mixing with macro-instabilities
- 2013Bubble size and air content of wet fibre foams in axial mixing with macro-instabilitiescitations
- 2009Wet Web Rheology on a Paper Machine
- 2008Simulation of triaxial deformation of wet fiber networkscitations
Places of action
| Organizations | Location | People |
|---|
document
Effect of cellulosic fibers on foam dynamics
Abstract
Aqueous foams consist of air bubbles stabilized in a fluid medium. Surface active agents adsorbed at the air/liquid interface may enhance foam stability by modifying the interfacial energy at the air/liquid interface. In addition, they affect the interfacial and bulk viscoelasticity as well as the capillary pressure across the plateau borders. The diffusion and adsorption kinetics of surface active agents in the foam and at interfaces impact the foamability to given extent. The foam dynamics (foamability, foam stability), in turn, is closely related to parameters that are used to define the physical chemistry of foams. We incorporated cellulosic fibers (wood fibers and cellulose nanofibrils) in surfactant-stabilized foams, producing bio-based systems that we expect to have a wide range of applications. The physical chemistry of the air/liquid interface in such foams was altered by the presence of various surfactant types (anionic, cationic and nonionic). The synergistic role of natural wood fibers and surfactants in foam generation and stabilization processes was evaluated as a function of surfactant concentration. Here we discuss the effect on foam dynamics of added wood fibers and cellulose nanofibrils, which were used as rheology modifier.