NDLI: Morphological changes of ramie fiber during mercerization

Content Provider	Springer Nature Link
Author	Nishiyama, Yoshiharu Oka, Takeshi
Copyright Year	1998
Abstract	Morphological changes of ramie fibers due to swelling in alkali solution were investigated. The observed twisting and changes in the cross-sectional shape of the fibers could be explained as a geometrical alteration caused by lateral expansion of coiling fibrils, as the unmercerized ramie fiber showed an S-helix structure. The fibril angle of ramie fibers was estimated to be 3°. Although the swollen fiber untwisted to some extent on washing with water, the shape of the twisted ribbons as observed by scanning electron microscopy was retained even after drying. Concentrated 8N NaOH produced only a moderate change in morphology, whereas swelling with 3.5N NaOH at 0°C expanded the cross sections about 30 times over the initial ones accompanied by a drastic change in the shape of the fiber.
Starting Page	310
Ending Page	313
Page Count	4
File Format	PDF
ISSN	14350211
Journal	Journal of Wood Science
Volume Number	44
Issue Number	4
e-ISSN	16114663
Language	English
Publisher	Springer-Verlag
Publisher Date	1998-01-01
Publisher Place	Tokyo
Access Restriction	Subscribed
Subject Keyword	Cellulose Mercerization Ramie Swelling Wood Science & Technology Materials Science Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Biomaterials Forestry

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Morphological changes of ramie fiber during mercerization