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Effect of high temperature alkali cooking on the constituents, structure and thermal degradation of hemp fiber
Author(s) -
Feng Xinxing,
Chen Jianyong,
Zhang Huapeng
Publication year - 2008
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.28008
Subject(s) - crystallinity , materials science , degradation (telecommunications) , cellulose , thermal stability , alkali metal , fiber , composite material , fourier transform infrared spectroscopy , lignin , thermal analysis , thermal , chemical engineering , chemistry , organic chemistry , telecommunications , physics , meteorology , computer science , engineering
Degumming of hemp fiber by high temperature alkali cooking was investigated, and the effect of temperature and dosage of alkali on the constituents, structure, and thermal degradation of hemp fiber was also discussed in this work. The morphology, structure, and thermal degradation of hemp fiber after high temperature cooking were investigated through SEM, FTIR, WAXD, and TG analysis. The results indicated that the high temperature cooking process was effective for removing hemicelluloses and lignin and could also improve the thermal stability of cellulose. Crystallinity index of the treated hemp fiber was increased, which was related to the cooking temperature and NaOH dosage. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008