Приказ основних података о документу

dc.creatorIvanovska, Aleksandra
dc.creatorCerović, Dragana
dc.creatorMaletić, Slavica
dc.creatorJanković Častvan, Ivona
dc.creatorAsanović, Koviljka
dc.creatorKostić, Mirjana
dc.date.accessioned2021-03-10T14:07:32Z
dc.date.available2021-03-10T14:07:32Z
dc.date.issued2019
dc.identifier.issn0969-0239
dc.identifier.urihttp://TechnoRep.tmf.bg.ac.rs/handle/123456789/4260
dc.description.abstractWoven 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] .en
dc.publisherSpringer
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172029/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/171029/RS//
dc.rightsrestrictedAccess
dc.sourceCellulose
dc.subjectJuteen
dc.subjectAlkalien
dc.subjectHemicellulosesen
dc.subjectSorption propertiesen
dc.subjectDielectric propertiesen
dc.titleInfluence of the alkali treatment on the sorption and dielectric properties of woven jute fabricen
dc.typearticle
dc.rights.licenseARR
dc.citation.epage5146
dc.citation.issue8
dc.citation.other26(8): 5133-5146
dc.citation.rankaM21
dc.citation.spage5133
dc.citation.volume26
dc.identifier.doi10.1007/s10570-019-02421-0
dc.identifier.scopus2-s2.0-85064519541
dc.identifier.wos000467057500034
dc.type.versionpublishedVersion


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Приказ основних података о документу