TY  - JOUR
TI  - Effect of alkali treatment on physical and mechanical properties of Cattail and Kenaf fibres
AU  - Sana, Rezig
AU  - Yosr, Ben Mlik
AU  - Mounir, Jaouadi
AU  - Foued, Khoffi
AU  - Slah, Msahli
T2  - Industria Textila
AB  - NaOH treatment is widely used for natural fibre extraction. However, the different treatment conditions produce fibres
with other characteristics. The present work aims to study the effect of alkali treatment conditions on Kenaf bast and
Cattail stem fibres’ properties. Two conditions at two different levels were selected. They are soaking time (2 and 4
hours) and alkali treatment temperature (80 and 120°C). Untreated Kenaf and Cattail fibres were used as control
samples. The NaOH process occurred due to the decline in the fineness of Cattail and Kenaf fibres. SEM micrographs
of treated fibres showed a clear surface with rectangular pits for Cattail fibres and dissociation of the technical fibre. Best
tensile strength obtained for Kenaf fibres for 80°C and under 4 hours. However, a temperature of 120°C and a duration
of 4 hours confirmed the best results in terms of lignin removal, proved by IR spectra. Also, X-ray diffractograms
suggested that the crystallinity index increases with the highest conditions. The properties of Kenaf bast fibres are found
to be superior to Cattail fibres. Characteristic ranges of Cattail and Kenaf fibres after alkaline treatment can be resumed
respectively as the diameter of (205–496) and (66–162 μm), the linear density of (31–48) and (14–22 tex), tenacity of
(6–8) and (13–17 cN/tex), elongation of (2.6–3.3) and (3–6.2%), lignin ratio of (20.7–23.7) and (15.13–22.6%),
alpha-cellulose of (50.2–55.6) and (53–59%), and crystallinity of (43.9–58.6) and (55.4–66.3%). Findings showed that
Kenaf bast fibres are found to be great resistant and thinner than Cattail fibres and compared to other fibres.
DA  - 2024/12/20/
PY  - 2024
DO  - 10.35530/IT.075.06.202435
DP  - DOI.org (Crossref)
VL  - 75
IS  - 06
SP  - 702
EP  - 709
SN  - 12225347
UR  - https://www.revistaindustriatextila.ro/images/2024/6/005%20REZIG%20SANA%20INDUSTRIA%20TEXTILA%20no.6_2024.pdf
Y2  - 2024/12/28/15:26:24
ER  -