Journal
NORDIC PULP & PAPER RESEARCH JOURNAL
Volume 33, Issue 4, Pages 647-650Publisher
AB SVENSK PAPPERSTIDNING
DOI: 10.1515/npprj-2018-0054
Keywords
cellulose nanofibers; CNF; drying; glycerol; hornification; MFC; redispersion
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To investigate the dispersibility of dried cellulose nanofibers (CNFs), various additions (glycerol, octanol, glycol, and sodium perchlorate) were added to CNFs prior to drying. Glycerol was the only species to show any significant effect on re-dispersibility. The sedimentation was slower, and the transmittance of the solution was comparable to that of its undried counterpart. Increasing the amount of glycerol showed a clear trend with regard to dispersibility. The mechanical properties of films were maintained for samples that were dried and redispersed in the presence of glycerol.
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