Lyocell blend fibers with cationic starch: potential and properties

The regeneration of cellulose from solution state offers opportunities for blending with a secondary polymer. Cellulose/cationic starch blends were spun into fibers from β-methylmorpholine-β oxide solution, and the fibers were characterized by moisture absorption, dye absorption, and enzymatic hydro...

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Bibliographic Details
Published in:Cellulose (London) 2004-06, Vol.11 (2), p.265-272
Main Authors: Nechwatal, A., Michels, C., Kosan, B., Nicolai, M.
Format: Article
Language:English
Subjects:
Absorption
Cationic polymerization
Cellulase
Cellulose
Cellulose fibers
Dyes
Hydrolysis
Moisture absorption
Polymer blends
Regeneration
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Summary:The regeneration of cellulose from solution state offers opportunities for blending with a secondary polymer. Cellulose/cationic starch blends were spun into fibers from β-methylmorpholine-β oxide solution, and the fibers were characterized by moisture absorption, dye absorption, and enzymatic hydrolysis. Cellulose/starch-blend fibers with up to 30% starch content were found to retain up to three times as much water, take up to five times as much dye, and be degradable much faster by cellulase hydrolysis compared with control lyocell fiber. ID addition to starch content, the fiber's performance depended on the degree of substitution of the starch by cationic substituents.
ISSN:0969-0239
1572-882X
DOI:10.1023/B:CELL.0000025379.34900.df