We study the control of mechanical and surface functionalities of bio-based foams varying the material composition and the preparation processes. Our targets are to optimize the rheology of the foams continuous phase to allow the flow field to manipulate the bubble structure tor biomimicry. At the same we will study the possibilities of nanoparticle utilization to modify the film composition within the foams. Especially we will concentrate on materials relatively easy to manipulate such as lignin.
Lignin type and distribution in the material can tune its hydrophobicity
We can evenly distribute (model) nanoparticles in a foam and control the pore openness with nanoparticle type and content
Energy minimization drives the lignin to the liquid-gas interfaces
Publications (see also the list at the end of the page)
Miranda-Valdez, I.Y., Coffeng, S., Zhou, Y., Viitanen, L., Hu, X., Jannuzzi, L., Puisto, A., Kostiainen, M., Mäkinen, T., Koivisto, J., and Alava, M. Foam-formed biocomposites based on cellulose products and lignin. Cellulose, 30, 2253–2266 (2023). https://doi.org/10.1007/s10570-022-05041-3