This study investigated the individual influences of hemicelluloses and lignin removal on the water uptake behavior of hemp fibers. Hemp fibers with different content of either hemicelluloses or lignin were obtained by chemical treatment with 17.5% sodium hydroxide or 0.7% sodium chlorite. Various tests (capillary rise method, moisture sorption, water retention power) were applied to evaluate the change in water uptake of modified hemp fibers. The obtained results show that when the content of either hemicelluloses or lignin is reduced progressively by chemical treatment, the capillary properties of hemp fibers are improved, i.e. capillary rise height of modified fibers is increased up to 2.7 times in relation to unmodified fibers. Furthermore, hemicelluloses removal increases the moisture sorption and decreases the water retention values of hemp fibers, while lignin removal decreases the moisture sorption and increases the water retention ability of hemp fibers.
Keywords:
hemp fibers / chemical modification / capillarity / moisture sorption / water retention power
TY - JOUR
AU - Pejić, Biljana
AU - Kostić, Mirjana
AU - Škundrić, Petar
AU - Praskalo, Jovana
PY - 2008
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1278
AB - This study investigated the individual influences of hemicelluloses and lignin removal on the water uptake behavior of hemp fibers. Hemp fibers with different content of either hemicelluloses or lignin were obtained by chemical treatment with 17.5% sodium hydroxide or 0.7% sodium chlorite. Various tests (capillary rise method, moisture sorption, water retention power) were applied to evaluate the change in water uptake of modified hemp fibers. The obtained results show that when the content of either hemicelluloses or lignin is reduced progressively by chemical treatment, the capillary properties of hemp fibers are improved, i.e. capillary rise height of modified fibers is increased up to 2.7 times in relation to unmodified fibers. Furthermore, hemicelluloses removal increases the moisture sorption and decreases the water retention values of hemp fibers, while lignin removal decreases the moisture sorption and increases the water retention ability of hemp fibers.
PB - Elsevier Sci Ltd, Oxford
T2 - Bioresource Technology
T1 - The effects of hemicelluloses and lignin removal on water uptake behavior of hemp fibers
EP - 7159
IS - 15
SP - 7152
VL - 99
DO - 10.1016/j.biortech.2007.12.073
ER -
@article{
author = "Pejić, Biljana and Kostić, Mirjana and Škundrić, Petar and Praskalo, Jovana",
year = "2008",
abstract = "This study investigated the individual influences of hemicelluloses and lignin removal on the water uptake behavior of hemp fibers. Hemp fibers with different content of either hemicelluloses or lignin were obtained by chemical treatment with 17.5% sodium hydroxide or 0.7% sodium chlorite. Various tests (capillary rise method, moisture sorption, water retention power) were applied to evaluate the change in water uptake of modified hemp fibers. The obtained results show that when the content of either hemicelluloses or lignin is reduced progressively by chemical treatment, the capillary properties of hemp fibers are improved, i.e. capillary rise height of modified fibers is increased up to 2.7 times in relation to unmodified fibers. Furthermore, hemicelluloses removal increases the moisture sorption and decreases the water retention values of hemp fibers, while lignin removal decreases the moisture sorption and increases the water retention ability of hemp fibers.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Bioresource Technology",
title = "The effects of hemicelluloses and lignin removal on water uptake behavior of hemp fibers",
pages = "7159-7152",
number = "15",
volume = "99",
doi = "10.1016/j.biortech.2007.12.073"
}
Pejić, B., Kostić, M., Škundrić, P.,& Praskalo, J.. (2008). The effects of hemicelluloses and lignin removal on water uptake behavior of hemp fibers. in Bioresource Technology
Elsevier Sci Ltd, Oxford., 99(15), 7152-7159.
https://doi.org/10.1016/j.biortech.2007.12.073
Pejić B, Kostić M, Škundrić P, Praskalo J. The effects of hemicelluloses and lignin removal on water uptake behavior of hemp fibers. in Bioresource Technology. 2008;99(15):7152-7159.
doi:10.1016/j.biortech.2007.12.073 .
Pejić, Biljana, Kostić, Mirjana, Škundrić, Petar, Praskalo, Jovana, "The effects of hemicelluloses and lignin removal on water uptake behavior of hemp fibers" in Bioresource Technology, 99, no. 15 (2008):7152-7159,
https://doi.org/10.1016/j.biortech.2007.12.073 . .
