Use of Microfibrillated Cellulose/Lignosulfonate Blends as Carbon Precursors: Impact of Hydrogel Rheology on 3D Printing

The aim of the present study was to investigate the rheological properties of microfibrillated cellulose (MFC)/lignosulfonate (LS) hydrogels and to use them in the manufacture of carbon objects by 3D printing and carbonization. For this purpose, both flow mode and thixotropic mode were used to characterize the hydrogel rheological behavior, which was subsequently used to search for formulation/processability correlations during 3D printing of...