Sorption and dielectric properties of jute woven fabrics: Effect of chemical composition
Samo za registrovane korisnike
2019
Autori
Ivanovska, AleksandraCerović, Dragana
Tadić, Nenad
Janković Častvan, Ivona
Asanović, Koviljka
Kostić, Mirjana
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
The jute woven fabric was treated with sodium hydroxide and sodium chlorite under different conditions in order to study the influence of the chemical composition on their sorption and dielectric properties. After the alkali treatments, the hemicelluloses content decreased in the range of 14.4-46.7%, which leads to elementary fiber liberalization and increased moisture sorption of the jute fabrics up to 15.5% and 11.9% at 30% and 80% relative humidity, respectively. The X-ray diffraction analysis shows that the removal of hemicelluloses for 14.4% and 36.6% was followed by a decrease in the crystallinity index for 3.0% and 18.8%, respectively. The additional decrease in hemicelluloses content of 46.7% was accompanied by a slight increase in the crystallinity index for about 14%. These results are in a good agreement with the results obtained for the AC specific electrical conductivity (at 30% and 80% relative humidity). After the oxidative treatments, the lignin content decreased in the... range of 37.8%-79.0%, which causes two parallel effects: a slightly increased moisture sorption (up to 7.4% and 4.6% at 30% and 80% relative humidity, respectively) and crystallinity index (from 4.8%-16.6%). The jute fabrics with 37.8% and 63.2% lower lignin content and similar moisture sorption values have the same AC specific electrical conductivities at both relative humidities (30% and 80%) revealing a dominant effect of moisture sorption. The AC specific electrical conductivity of the investigated jute fabrics increases with increasing the frequency as well as relative air humidity, where the highest difference between the values of AC specific electrical conductivity is obtained at the highest frequency (140 kHz).
Ključne reči:
Jute / Hemicelluloses / Lignin / Moisture sorption / X-ray diffraction / AC specific electrical conductivityIzvor:
Industrial Crops and Products, 2019, 140, 111632-Izdavač:
- Elsevier B.V.
Finansiranje / projekti:
- Funkcionalizacija, karakterizacija i primena celuloze i derivata celuloze (RS-MESTD-Basic Research (BR or ON)-172029)
- Proučavanje uticaja tretiranja na dielektrične, optičke, magnetne i osobine površina kristalnih i polimernih sistema (RS-MESTD-Basic Research (BR or ON)-171029)
DOI: 10.1016/j.indcrop.2019.111632
ISSN: 0926-6690
WoS: 000491621900058
Scopus: 2-s2.0-85070371418
Kolekcije
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Ivanovska, Aleksandra AU - Cerović, Dragana AU - Tadić, Nenad AU - Janković Častvan, Ivona AU - Asanović, Koviljka AU - Kostić, Mirjana PY - 2019 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4146 AB - The jute woven fabric was treated with sodium hydroxide and sodium chlorite under different conditions in order to study the influence of the chemical composition on their sorption and dielectric properties. After the alkali treatments, the hemicelluloses content decreased in the range of 14.4-46.7%, which leads to elementary fiber liberalization and increased moisture sorption of the jute fabrics up to 15.5% and 11.9% at 30% and 80% relative humidity, respectively. The X-ray diffraction analysis shows that the removal of hemicelluloses for 14.4% and 36.6% was followed by a decrease in the crystallinity index for 3.0% and 18.8%, respectively. The additional decrease in hemicelluloses content of 46.7% was accompanied by a slight increase in the crystallinity index for about 14%. These results are in a good agreement with the results obtained for the AC specific electrical conductivity (at 30% and 80% relative humidity). After the oxidative treatments, the lignin content decreased in the range of 37.8%-79.0%, which causes two parallel effects: a slightly increased moisture sorption (up to 7.4% and 4.6% at 30% and 80% relative humidity, respectively) and crystallinity index (from 4.8%-16.6%). The jute fabrics with 37.8% and 63.2% lower lignin content and similar moisture sorption values have the same AC specific electrical conductivities at both relative humidities (30% and 80%) revealing a dominant effect of moisture sorption. The AC specific electrical conductivity of the investigated jute fabrics increases with increasing the frequency as well as relative air humidity, where the highest difference between the values of AC specific electrical conductivity is obtained at the highest frequency (140 kHz). PB - Elsevier B.V. T2 - Industrial Crops and Products T1 - Sorption and dielectric properties of jute woven fabrics: Effect of chemical composition SP - 111632 VL - 140 DO - 10.1016/j.indcrop.2019.111632 ER -
@article{ author = "Ivanovska, Aleksandra and Cerović, Dragana and Tadić, Nenad and Janković Častvan, Ivona and Asanović, Koviljka and Kostić, Mirjana", year = "2019", abstract = "The jute woven fabric was treated with sodium hydroxide and sodium chlorite under different conditions in order to study the influence of the chemical composition on their sorption and dielectric properties. After the alkali treatments, the hemicelluloses content decreased in the range of 14.4-46.7%, which leads to elementary fiber liberalization and increased moisture sorption of the jute fabrics up to 15.5% and 11.9% at 30% and 80% relative humidity, respectively. The X-ray diffraction analysis shows that the removal of hemicelluloses for 14.4% and 36.6% was followed by a decrease in the crystallinity index for 3.0% and 18.8%, respectively. The additional decrease in hemicelluloses content of 46.7% was accompanied by a slight increase in the crystallinity index for about 14%. These results are in a good agreement with the results obtained for the AC specific electrical conductivity (at 30% and 80% relative humidity). After the oxidative treatments, the lignin content decreased in the range of 37.8%-79.0%, which causes two parallel effects: a slightly increased moisture sorption (up to 7.4% and 4.6% at 30% and 80% relative humidity, respectively) and crystallinity index (from 4.8%-16.6%). The jute fabrics with 37.8% and 63.2% lower lignin content and similar moisture sorption values have the same AC specific electrical conductivities at both relative humidities (30% and 80%) revealing a dominant effect of moisture sorption. The AC specific electrical conductivity of the investigated jute fabrics increases with increasing the frequency as well as relative air humidity, where the highest difference between the values of AC specific electrical conductivity is obtained at the highest frequency (140 kHz).", publisher = "Elsevier B.V.", journal = "Industrial Crops and Products", title = "Sorption and dielectric properties of jute woven fabrics: Effect of chemical composition", pages = "111632", volume = "140", doi = "10.1016/j.indcrop.2019.111632" }
Ivanovska, A., Cerović, D., Tadić, N., Janković Častvan, I., Asanović, K.,& Kostić, M.. (2019). Sorption and dielectric properties of jute woven fabrics: Effect of chemical composition. in Industrial Crops and Products Elsevier B.V.., 140, 111632. https://doi.org/10.1016/j.indcrop.2019.111632
Ivanovska A, Cerović D, Tadić N, Janković Častvan I, Asanović K, Kostić M. Sorption and dielectric properties of jute woven fabrics: Effect of chemical composition. in Industrial Crops and Products. 2019;140:111632. doi:10.1016/j.indcrop.2019.111632 .
Ivanovska, Aleksandra, Cerović, Dragana, Tadić, Nenad, Janković Častvan, Ivona, Asanović, Koviljka, Kostić, Mirjana, "Sorption and dielectric properties of jute woven fabrics: Effect of chemical composition" in Industrial Crops and Products, 140 (2019):111632, https://doi.org/10.1016/j.indcrop.2019.111632 . .