Development of microfibrillated cellulose filaments using xanthan and guar gums

• Published in: Cellulose (London) Vol. 31; no. 14; pp. 8609 - 8623
• Main Authors: Menini, Poliana Dariva, Oliveira, Michel Picanço, Colares, Jair Rogério, Mulin, Lucas Braga, Profeti, Demetrius, Profeti, Luciene Paula Roberto, Silva, Danillo Wisky, Moulin, Jordão Cabral
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01.09.2024; Springer Nature B.V
• Subjects: Bioorganic Chemistry; Cellulose; Cellulose fibers; Ceramics; Chemistry; Chemistry and Materials Science; Coagulation; Composite materials; Composites; Construction industry; Filaments; Glass; Guar gum; Natural Materials; Organic Chemistry; Original Research; Physical Chemistry; Polymer Sciences; Stress concentration; Sustainable Development; Synthetic fibers; Water absorption; Xanthan; Coagulation time; Yarn types; Cellulose microfibril yarn
• ISSN: 0969-0239; 1572-882X
• DOI: 10.1007/s10570-024-06134-x

The production of yarns and synthetic fibers is of great importance for numerous industrial sectors, such as the textile, composite material, biomedical, and civil construction industries. The utilization of cellulose microfibrils (CNFs) for filament production still requires further research, given the challenges associated with the coagulation process. Extensive research efforts have been dedicated to the development of materials that can be combined with CNFs to improve coagulation. This study aimed to develop an acetone spinning method to produce filaments from CNFs combined with xanthan (XG) and guar (GG) gums. Three types of filament architecture were tested: monocomponent (MONO), bicomponent (BI), and mixed component (MIX). XG filaments were evaluated at three coagulation times (90, 120, and 150 s) and GG filaments at a single coagulation time (120 s). Morphological analysis showed that gums contributed to improving external structure. BI filaments were rounder, exhibited lower stress concentration, and showed the highest mechanical resistance after 120 s of coagulation (XG = 27.97 MPa, GG = 28.69 MPa). Water absorption tests showed that the developed filaments hold great potential as absorbent materials, representing an environmentally friendly alternative to synthetic polymer absorbents.