Country

Finland

University

VTT Technical Research Centre of Finland

Institution

Biomaterial processing and products, Jyväskylä

Rheometers

• TA Instruments DHR-2
• Brookfield LVDV-II+Pro Extra viscometer
• Custom-built pipe rheometers

Accessories

• Wide selection of measurement geometries: various parallel plate, cone-plate and concentric cylinder geometries, as well as vane-in-cup geometries for the rheological characterization of samples exhibiting wall slip, large particles and/or sensitive microstructure
• Rheo-optics: transparent measurement geometries for simultaneous rheological characterization and imaging of sample's microstructure with optical coherence tomography and optical microscopy
• 3D-printed measurement geometries: possibility to design and manufacture customized measurement geometries using different 3D printing techniques
• Modular pipe rheometers: pressure loss and viscosity measurements on liquids, suspensions and foams in various flow geometries (straight pipes, elbow pipes, orifice plates, etc.) with simultaneous flow imaging and wall slip analysis

Information Links

Flow imaging with optical coherence tomography: Koponen, A. I., & Haavisto, S. (2020) Analysis of industry-related flows by optical coherence Tomography—A review. KONA Powder and Particle Journal, 37, 42-63, https://doi.org/10.14356/kona.2020003
Flow imaging with polarization-sensitive optical coherence tomography: Jäsberg, A., Puisto, A., Leppänen, I., Koponen, A. I., & Alava, M. J. (2023) Online detection of orientation of cellulose nanocrystals in a capillary flow with polarization-sensitive optical coherence tomography. Cellulose, 30(6), 3539-3550, https://doi.org/10.1007/s10570-023-05072-4
Velocity profiling rheometry: Kataja, M., Lehto, R., Haavisto, S., Salmela, J., & Koponen, A. (2017) Characterization of micro-fibrillated cellulose fiber suspension flow using multi scale velocity profile measurements. Nordic Pulp & Paper Research Journal, 32(3), 473-482, https://doi.org/10.3183/npprj-2017-32-03-p473-482

Contacts

Olli-Ville Laukkanen (Olli-Ville.Laukkanen@vtt.fi)

Last Updated By

Olli-Ville.Laukkanen@vtt.fi

Last Updated

12/26/2023 8:51:02 AM