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Fabrication of regenerated cellulose fibers using phosphoric acid with hydrogen peroxide treated wheat straw in a DMAc/LiCl solvent system.
- Source :
- Cellulose; Jul2023, Vol. 30 Issue 10, p6187-6201, 15p
- Publication Year :
- 2023
-
Abstract
- Regenerated cellulose fibers (RCFs) are widely used biodegradable and eco-friendly materials made from woody biomass that can replace synthetic fibers. In this work, we explored the feasibility of fabricating RCFs using phosphoric acid with hydrogen peroxide (PHP)-treated wheat straw in an N, N-dimethylacetamide/lithium chloride (DMAc/LiCl) solvent system. The effects of upstream pretreatment conditions on the obtained cellulose-enriched fraction (CEF), the solubility of CEF in DMAc/LiCl, the mechanical properties of RCFs, and the interfacial interaction of residual lignin were systematically studied. CEF could be completely dissolved in DMAc/LiCl, and its wet spun RCFs had tensile strengths of 184 MPa and toughness values of 25 MJ/m<superscript>3</superscript>; it demonstrated remarkable wet strength (84 MPa), wet toughness (11 MJ/m<superscript>3</superscript>), and dyeing properties. The existence of residual lignin negatively affected the RCF mechanical properties; however, it enhanced its resistance to water infiltration. The present work provided a new approach for producing RCFs from woody biomass. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09690239
- Volume :
- 30
- Issue :
- 10
- Database :
- Complementary Index
- Journal :
- Cellulose
- Publication Type :
- Academic Journal
- Accession number :
- 164432490
- Full Text :
- https://doi.org/10.1007/s10570-023-05263-z