Cellulose nanofibre hydrogels are produced by osmotic dehydration. We analyse the evolution of their hierarchical porosity in wet state depending on solid content (0.7‐12 wt%). We measure water physical characteristics, mechanical properties, ion‐conductivity and redispersion. This method is straight forward, reproducible, does not require heat or vacuum, and minimizes nanofibrillar aggregation.
ESI - Tuning the porosity, water interaction and redispersion of nanocellulose hydrogels by osmotic dehydration
A detailed description of the preparation and characterization of cellulose nanofibres, osmotic dehydration protocol, characterization of the tunable hydrogels and their re-dispersibility in water