High-Strength Composite Fibers from Cellulose-Lignin Blends Regenerated from Ionic Liquid Solution

被引：92
|
作者：
Ma, Yibo [1 ]
Asaadi, Shirin [1 ]
Johansson, Leena-Sisko [2 ]
Ahvenainen, Patrik [3 ]
Reza, Mehedi [4 ]
Alekhina, Marina [1 ]
Rautkari, Lauri [1 ]
Michud, Anne [1 ]
Hauru, Lauri [1 ]
Hummel, Michael [1 ]
Sixta, Herbert [1 ]
机构：
[1] Aalto Univ, Sch Chem Technol, Dept Forest Prod Technol, POB 16300, Aalto 00076, Finland
[2] Aalto Univ, Acad Finland, Ctr Excellence Mol Engn Biosynthet Hybrid Mat Res, HYBER, Aalto 00076, Finland
[3] Univ Helsinki, Dept Phys, Div Mat Phys, FI-00014 Helsinki, Finland
[4] Aalto Univ, Sch Sci, Dept Appl Phys, Aalto 00076, Finland
来源：
CHEMSUSCHEM | 2015年 / 8卷 / 23期
关键词：
biomass; dyes; pigments; fibers; ionic liquids; organosolv; SOFTWOOD KRAFT LIGNIN; CARBON-FIBERS; TEMPERATURE; DEFORMATION; DISSOLUTION; MECHANISM; SORPTION;
D O I：
10.1002/cssc.201501094
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Composite fibres that contain cellulose and lignin were produced from ionic liquid solutions by dry-jet wet spinning. Eucalyptus dissolving pulp and organosolv/kraft lignin blends in different ratios were dissolved in the ionic liquid 1,5-diazabicyclo[4.3.0]non-5-enium acetate to prepare a spinning dope from which composite fibres were spun successfully. The composite fibres had a high strength with slightly decreasing values for fibres with an increasing share of lignin, which is because of the reduction in crystallinity. The total orientation of composite fibres and SEM images show morphological changes caused by the presence of lignin. The hydrophobic contribution of lignin reduced the vapour adsorption in the fibre. Thermogravimetric analysis curves of the composite fibres reveal the positive effect of the lignin on the carbonisation yield. Finally, the composite fibre was found to be a potential raw material for textile manufacturing and as a precursor for carbon fibre production.
引用
收藏
页码：4030 / 4039
页数：10
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