Preparation and properties of wet-spun microcomposite filaments from cellulose nanocrystals and alginate using a microfluidic device

Cellulose nanocrystals (CNCs) were wet-spun in a coagulation bath for the fabrication of microfilaments, and the effect of sodium alginate (AL) addition on the wet-spinnability and properties of the microcomposite filament was investigated. The CNC suspension exhibited excellent wet-spinnability in...

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Bibliographic Details
Published in:Bioresources 2021-08, Vol.16 (3), p.5780-5793
Main Authors: Park, Ji-Soo, Park, Chan-Woo, Han, Song-Yi, Lee, Eun-Ah, Cindradewi, Azelia Wulan, Kim, Jeong-Ki, Kwan, Gu-Joong, Seo, Young-Ho, Youe, Won-Jae, Gwon, Jaegyoung, Lee, Seung-Hwan
Format: Article
Language:English
Subjects:
Alginic acid
Biopolymers
Calcium chloride
Cellulose
Coagulation
Crystals
Fabrication
Filaments
Laboratories
Mechanical properties
Microfilaments
Microfluidic devices
Morphology
Nanocrystals
Sodium alginate
Solvents
Tensile properties
Viscosity
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Summary:Cellulose nanocrystals (CNCs) were wet-spun in a coagulation bath for the fabrication of microfilaments, and the effect of sodium alginate (AL) addition on the wet-spinnability and properties of the microcomposite filament was investigated. The CNC suspension exhibited excellent wet-spinnability in calcium chloride (CaCl2) solution, and the addition of AL in CNC suspension resulted in the enhancement of the wet-spinnability of CNCs. As the AL content increased from 3% to 10%, the average diameter of the microcomposite filament decreased, and its tensile properties deteriorated. The increased spinning rate caused an increase in the orientation index of CNCs, resulting in an improvement in the tensile properties of the microcomposite filament.
ISSN:1930-2126
1930-2126
DOI:10.15376/biores.16.3.5780-5793