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Effect of Lignin on the Heat and Light Resistance of Lignocellulosic Fibers
Author(s) -
Reddy Narendra,
Salam Abdus,
Yang Yiqi
Publication year - 2007
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.200600446
Subject(s) - tenacity (mineralogy) , lignin , kenaf , elongation , materials science , heat resistance , composite material , breaking strength , raw material , fiber , pulp and paper industry , ultimate tensile strength , chemistry , organic chemistry , engineering
The existence of lignin in lignocellulosic fibers increases the loss in breaking tenacity and elongation of fibers when they are exposed to heat and light. Delignification by sulfonation helps to remove some of the lignin from the fibers without affecting the breaking tenacity. The delignified fibers have higher resistance to heat and light exposure compared to the raw fibers. The effect of lignin on the heat and light resistance of kenaf and cornhusk fibers with three different lignin contents was studied in comparison to cotton at various periods of heat and light exposure. The changes in the breaking tenacity, breaking elongation and yellowness of the samples were studied.