The influence of alkali pretreatments in lyocell resin finishing - Fiber structure

被引：17
|
作者：
Martian, Avinash P. [1 ]
Abu-Rous, Mohammad [1 ,3 ]
Lenninger, Margit [1 ]
Roeder, Thomas [1 ,2 ]
Schuster, K. Christian [3 ]
Bechtold, Thomas [1 ]
机构：
[1] Univ Innsbruck, Inst Text Chem Phys, Christian Doppler Lab Text & Fiber Chem Cellulos, A-6850 Dornbirn, Austria
[2] BU Pulp, Dept Zellstoff Forsch, A-4860 Lenzing, Austria
[3] Lenzing AG, Text Innovat, A-4860 Lenzing, Austria
来源：
CARBOHYDRATE POLYMERS | 2008年 / 71卷 / 04期
关键词：
accessibility; alkali pretreatment; crosslinking; lyocell; pore structure; resin finishing;
D O I：
10.1016/j.carbpol.2007.07.020
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The fiber structure was investigated in lyocell fabrics treated with NaOH (120 g/l), or KOH (250 g/l), and compared with that in untreated fabrics. The alkali treatments caused some degree of degradation in fibers, but no significant changes in carboxyl contents or crystallinity. There were indications of transitions of porosity in the morphology of lyocell fibers, with accessibility at the fiber centers being distinctly lower than that at the outer edges. Both alkali treatments appeared to increase accessibility at the peripheral region in fibers, though to different extents; but there were no evident changes of accessibility at fiber centers. A model is proposed of changes in fiber structure due to the two alkali treatments. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：664 / 671
页数：8
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