Influence of the alkali treatment on the sorption and dielectric properties of woven jute fabric
Само за регистроване кориснике
2019
Аутори
Ivanovska, AleksandraCerović, Dragana
Maletić, Slavica
Janković Častvan, Ivona
Asanović, Koviljka
Kostić, Mirjana
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Woven jute fabric was treated with sodium hydroxide solution of different concentrations at room temperature, for different periods of time. After that, jute fabrics with gradually decreased content of hemicelluloses were obtained. The changes of the sorption properties (moisture sorption, water retention power and degree of fiber swelling) and dielectric properties (effective relative dielectric permeability, AC specific electrical conductivity and dielectric loss tangent) of alkali treated jute fabrics were investigated. After the alkali treatments, the degree of accessibility of the cell wall components to water vapor increased with increased severity of the alkali treatment. In parallel, the degree of fiber swelling and total water holding capacity of the fabrics were increased. The dielectric properties are very sensitive to fabric structural characteristics, chemical composition and its ability for moisture sorption. Thus, the obtained increase of the effective relative dielectri...c permeability after the alkali treatments can be attributed to the changes in the structural characteristics and decrease in the content of hemicelluloses, which further contributed to an increased ability for moisture sorption. The changes in the AC specific electrical conductivity can be explained by the fact that the hemicelluloses not only restrict the freedom of the water molecules to take part in the polarization process, they also change the structure in such a way that the mobility of the ions in the electric field is restricted. The values of dielectric loss tangent increased after the alkali treatments due to the increase in the number of polar groups. [GRAPHICS] .
Кључне речи:
Jute / Alkali / Hemicelluloses / Sorption properties / Dielectric propertiesИзвор:
Cellulose, 2019, 26, 8, 5133-5146Издавач:
- Springer
Финансирање / пројекти:
- Функционализација, карактеризација и примена целулозе и деривата целулозе (RS-172029)
- Проучавање утицаја третирања на диелектричне, оптичке, магнетне и особине површина кристалних и полимерних система (RS-171029)
DOI: 10.1007/s10570-019-02421-0
ISSN: 0969-0239
WoS: 000467057500034
Scopus: 2-s2.0-85064519541
Колекције
Институција/група
Inovacioni centarTY - JOUR AU - Ivanovska, Aleksandra AU - Cerović, Dragana AU - Maletić, Slavica AU - Janković Častvan, Ivona AU - Asanović, Koviljka AU - Kostić, Mirjana PY - 2019 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4260 AB - Woven jute fabric was treated with sodium hydroxide solution of different concentrations at room temperature, for different periods of time. After that, jute fabrics with gradually decreased content of hemicelluloses were obtained. The changes of the sorption properties (moisture sorption, water retention power and degree of fiber swelling) and dielectric properties (effective relative dielectric permeability, AC specific electrical conductivity and dielectric loss tangent) of alkali treated jute fabrics were investigated. After the alkali treatments, the degree of accessibility of the cell wall components to water vapor increased with increased severity of the alkali treatment. In parallel, the degree of fiber swelling and total water holding capacity of the fabrics were increased. The dielectric properties are very sensitive to fabric structural characteristics, chemical composition and its ability for moisture sorption. Thus, the obtained increase of the effective relative dielectric permeability after the alkali treatments can be attributed to the changes in the structural characteristics and decrease in the content of hemicelluloses, which further contributed to an increased ability for moisture sorption. The changes in the AC specific electrical conductivity can be explained by the fact that the hemicelluloses not only restrict the freedom of the water molecules to take part in the polarization process, they also change the structure in such a way that the mobility of the ions in the electric field is restricted. The values of dielectric loss tangent increased after the alkali treatments due to the increase in the number of polar groups. [GRAPHICS] . PB - Springer T2 - Cellulose T1 - Influence of the alkali treatment on the sorption and dielectric properties of woven jute fabric EP - 5146 IS - 8 SP - 5133 VL - 26 DO - 10.1007/s10570-019-02421-0 ER -
@article{ author = "Ivanovska, Aleksandra and Cerović, Dragana and Maletić, Slavica and Janković Častvan, Ivona and Asanović, Koviljka and Kostić, Mirjana", year = "2019", abstract = "Woven jute fabric was treated with sodium hydroxide solution of different concentrations at room temperature, for different periods of time. After that, jute fabrics with gradually decreased content of hemicelluloses were obtained. The changes of the sorption properties (moisture sorption, water retention power and degree of fiber swelling) and dielectric properties (effective relative dielectric permeability, AC specific electrical conductivity and dielectric loss tangent) of alkali treated jute fabrics were investigated. After the alkali treatments, the degree of accessibility of the cell wall components to water vapor increased with increased severity of the alkali treatment. In parallel, the degree of fiber swelling and total water holding capacity of the fabrics were increased. The dielectric properties are very sensitive to fabric structural characteristics, chemical composition and its ability for moisture sorption. Thus, the obtained increase of the effective relative dielectric permeability after the alkali treatments can be attributed to the changes in the structural characteristics and decrease in the content of hemicelluloses, which further contributed to an increased ability for moisture sorption. The changes in the AC specific electrical conductivity can be explained by the fact that the hemicelluloses not only restrict the freedom of the water molecules to take part in the polarization process, they also change the structure in such a way that the mobility of the ions in the electric field is restricted. The values of dielectric loss tangent increased after the alkali treatments due to the increase in the number of polar groups. [GRAPHICS] .", publisher = "Springer", journal = "Cellulose", title = "Influence of the alkali treatment on the sorption and dielectric properties of woven jute fabric", pages = "5146-5133", number = "8", volume = "26", doi = "10.1007/s10570-019-02421-0" }
Ivanovska, A., Cerović, D., Maletić, S., Janković Častvan, I., Asanović, K.,& Kostić, M.. (2019). Influence of the alkali treatment on the sorption and dielectric properties of woven jute fabric. in Cellulose Springer., 26(8), 5133-5146. https://doi.org/10.1007/s10570-019-02421-0
Ivanovska A, Cerović D, Maletić S, Janković Častvan I, Asanović K, Kostić M. Influence of the alkali treatment on the sorption and dielectric properties of woven jute fabric. in Cellulose. 2019;26(8):5133-5146. doi:10.1007/s10570-019-02421-0 .
Ivanovska, Aleksandra, Cerović, Dragana, Maletić, Slavica, Janković Častvan, Ivona, Asanović, Koviljka, Kostić, Mirjana, "Influence of the alkali treatment on the sorption and dielectric properties of woven jute fabric" in Cellulose, 26, no. 8 (2019):5133-5146, https://doi.org/10.1007/s10570-019-02421-0 . .