Projects per year
Abstract
Abstract: Colloidal gels are soft solids composed of particles dispersed in a fluid phase. Their rheological behavior highly depends on the particle concentration, but establishing a relationship can be challenging. This article showcases the potential of fractional rheology to model and predict linear viscoelastic responses of colloidal hydrogels containing TEMPO-oxidized cellulose nanofibers. Cellulose nanofiber hydrogels are soft solids whose rheology is directly related to the particle concentration. Therefore, this work defined the rheological behavior of the hydrogels using a fractional order derivative analytically solved to determine rheological responses in frequency, stress relaxation, and creep. Using two parameters, it evaluated the rheology of cellulose nanofiber hydrogels and established tests that predict rheological behaviors for given particle concentrations. The findings suggested that the fractional approach could become a standard method for characterizing cellulose nanofiber hydrogels in the reported concentration regime. The two parameters of the fractional model build a comparison framework to assess the rheology of different viscoelastic materials. Graphic abstract: [Figure not available: see fulltext.]
Original language | English |
---|---|
Pages (from-to) | 1545-1558 |
Number of pages | 14 |
Journal | Cellulose |
Volume | 31 |
Issue number | 3 |
Early online date | 2024 |
DOIs | |
Publication status | Published - Feb 2024 |
MoE publication type | A1 Journal article-refereed |
Keywords
- Cellulose nanofibers
- Colloidal gel
- Fractional rheology
- Linear viscoelasticity
- Scott-Blair model
Fingerprint
Dive into the research topics of 'Fractional rheology of colloidal hydrogels with cellulose nanofibers'. Together they form a unique fingerprint.Projects
- 3 Finished
-
CirPa: Aalto-R2B-Circular Panels
Alava, M. (Principal investigator), Mäkinen, T. (Project Member), Ranta, R. (Project Member), Kokkonen, V. (Project Member), Koivisto, J. (Project Member), Miranda Valdez, I. (Project Member), Mobredi, K. (Project Member), Lejon, J. (Project Member), Raukko, A. (Project Member), Mehtätalo, J. (Project Member), Shaikh, A. (Project Member), Ahmad, O. (Project Member), Hartikka, A. (Project Member), Magar, S. (Project Member), Vara, N. (Project Member) & Bhattarai, A. (Project Member)
01/01/2023 → 30/06/2024
Project: Business Finland: New business from research ideas (TUTLI)
-
Foam Wood: Manufacturing novel bio-based Wood-like foams by a continuous forming process
Alava, M. (Principal investigator), Puisto, A. (Project Member), Olsio, S. (Project Member), Karjalainen, A. (Project Member), Mohammed, A. (Project Member), Mäkinen, T. (Project Member), Ranta, R. (Project Member), Koivisto, J. (Project Member) & Jannuzzi Fonseca, L. (Project Member)
01/01/2021 → 31/05/2022
Project: Business Finland: New business from research ideas (TUTLI)
-
CERES FoamWood
Alava, M. (Principal investigator), Koivisto, J. (Project Member), Miranda Valdez, I. (Project Member), Rabensteiner, S. (Project Member) & Mac Intyre, J. (Project Member)
01/01/2020 → 31/12/2021
Project: Academy of Finland: Other research funding