Effect of drying and rewetting cycles on fibre swelling

被引：0
|
作者：
Weise, U
Paulapuro, H
机构：
[1] Jaakko Poyry Oy, FIN-01621 Vantaa, Finland
[2] Helsinki Univ Technol, Lab Paper Tech, FIN-02015 Hut, Finland
来源：
JOURNAL OF PULP AND PAPER SCIENCE | 1999年 / 25卷 / 05期
关键词：
reclaimed fibers; swelling; recycling; rewetting; drying; microscopy; fiber structure; hornification; image analysis; cross sections;
D O I：
暂无
中图分类号：
TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];
学科分类号：
0805 ; 080502 ; 0822 ;
摘要：
The reduction in fibre swelling after repeated drying and rewetting has been investigated in situ by means of confocal microscopy. Swelling is assumed to be caused by two phenomena, the displacement of morphological features in the fibre cell and submorphological swelling caused by bound water. Based on the results for wet-imaged fibre cross-sections, the more often fibres were dried and rewetted, the greater the reduction in swelling. In contrast, no change was observed for the results of dry-imaged fibres. It was concluded that fibre drying causes a loss in reswelling due to submorphological changes in the fibre wall.
引用
收藏
页码：163 / 166
页数：4
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