2018
DOI: 10.1002/mame.201800029
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High Stiffness Cellulose Fibers from Low Molecular Weight Microcrystalline Cellulose Solutions Using DMSO as Co‐Solvent with Ionic Liquid

Abstract: There is a need to develop high‐performance cellulose fibers as sustainable replacements for glass fibers, and as alternative precursors for carbon filaments. Traditional fiber spinning uses toxic solvents, but in this study, by using dimethyl sulfoxide (DMSO) as a co‐solvent with an ionic liquid, a novel high‐performance fiber with exceptional mechanical properties is produced. This involves a one‐step dissolution, and cost‐effective route to convert high concentrations of low molecular weight microcrystallin… Show more

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Cited by 30 publications
(25 citation statements)
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“…Some ionic liquids can be used to dissolve cellulosic materials, but limitations exist regarding their usage such as high energy consumption, high cost, and inherent difficulty in solvent recovery (de Oliveira Ribeiro et al 2018;Zhu et al 2018a). N-methylmorpholine-N-oxide monohydrate (NMMO•H2O), an organic solvent, has also been used to dissolve cellulose.…”
Section: Cellulose Propertiesmentioning
confidence: 99%
“…Some ionic liquids can be used to dissolve cellulosic materials, but limitations exist regarding their usage such as high energy consumption, high cost, and inherent difficulty in solvent recovery (de Oliveira Ribeiro et al 2018;Zhu et al 2018a). N-methylmorpholine-N-oxide monohydrate (NMMO•H2O), an organic solvent, has also been used to dissolve cellulose.…”
Section: Cellulose Propertiesmentioning
confidence: 99%
“…The cellulose filaments are inferior to MCC filaments spun with the same ionic solvent and dry-jet wet spinning method (Zhu et al, 2018). This inferiority is mainly due to their dissolution of pure MCC at high concentrations (20.8% and 23.6%) leading to the formation of liquid crystalline (LC) phases of the cellulose solutions, resulting in a high degree of filament alignment (f = 0.80-0.84).…”
Section: Filament Orientation Parametersmentioning
confidence: 99%
“…To this end, 18% microcrystalline cellulose (MCC) has been dissolved in 1-ethyl-3-methyl-limidazolium diethyl phosphate (EMImDEP) using a dry-jet wet spinning method, leading to significant increase in mechanical properties and smaller filament diameters of 20-23 μm (Zhu et al, 2016). Moreover, using dimethyl sulfoxide (DMSO) as a co-solvent was proven to facilitate the dissolution process allowing spinning up to ~24% cellulose (Zhu et al, 2018).…”
Section: Introductionmentioning
confidence: 99%
“…Parameters such as crystallinity, the degree of polymerization, as well as the stabilizing influence of hydrogen bonds strongly influence the mechanical properties of fibers . Most commonly used ILs are imidazolium‐based …”
Section: Cellulose Fiber Spinning Using Il‐technologymentioning
confidence: 99%