期刊
CARBOHYDRATE POLYMERS
卷 74, 期 2, 页码 235-240出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2008.02.010
关键词
periodate oxidation; dialdehyde cellulose (DAC); chitosan; antimicrobial cellulose fiber; Schiff base
资金
- National Ministry of Education
A kind of antimicrobial fibers, a composite of Chitosan-Dialdehyde Cellulose (C-DAC) fibers, was prepared by using commercially elemental chlorine-free (ECF) bleached kraft softwood cellulose fibers oxidized by periodate and then further grafted by chitosan with different molecular weights. The characteristics of the C-DAC fibers and physical properties as well as antimicrobial activities of the handsheet made of C-DAC fibers were measured. The results show that the dry and rewet tensile indices, antimicrobial activity against Staphylococcus aureus and Escherichia coli, can be improved significantly as the molecular weight of grafted chitosan on the dialdehyde cellulose fibers decreases. (C) 2008 Elsevier Ltd. All rights reserved.
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