20.500.12556/DKUM-66658 Hydrophilic/hydrophobic characteristics of different cellulose fibres monitored by tensiometry Tenziometrijsko praćenje hidrofilnih i hidrofobnih značajki različitih celuloznih vlakana Wettability and sorptivity improvements for different textile materials are the major tasks during textile finishing. In order to improve the sorption characteristics of a cellulose fabric, different pre-treatment processes are applied, usually washing, bleaching and mecerisation. Differences in the sorption properties of untreated and pretreated (washed and bleached) regenerated cellulose fibres were obtained using tensiometry and compared with the classical method for determining moisture adsorption. Results show that compared to raw fibres, viscose fibres have the highest moisture and the smallest contact angle whilst modal fibres have the biggest contact angle. Pretreatment increases the sorption abilities and makes the material more accessible to chemicals used in the finishing process. Using the conventional method, it can be confirmed that fibres with the highest moisture have the smallest contact angle (tensiometry). Poboljšanje vlažljivosti i sorptivnosti tekstilnih vlakna najvažnije su zadaće pri završetku izrade tekstila. Kako bi se poboljšale sorpcijske značajke celuloznih vlakana u njihovoj predobradbi rabe se razni postupci, najčešće ispiranje, izbjeljivanje i maceriranje. Razlike u sorpcijskim svojstvima neobrađenih i predobrađenih (ispranih i izbijeljenih) regeneriranih celuloznih vlakana istražene su tenziometrijom i uspoređene s klasičnim postupkom određivanja adsorpcije vlage. U usporedbi sa sirovim vlaknima, viskozna vlakna imaju najmanju vlažnost i najmanji kut kontakta, dok modalna vlakna imaju najveći kut kontakta. Predobradbom se povećavaju sorpcijska svojstva i pristupačnost raznim kemikalijama u završnim postupcima obradbe. Rabljenjem standardnih postupaka potvrdili smo da vlakna najveće vlažnosti posjeduju najmanji kontaktni kut, što je dokazano tenziometrijom. textile materials regenerated cellulose fibres sorption pretreatment tensiometry tekstilni materiali regenerirana celulozna vlakna sorpcija predobdelava tenziomterija true false true Angleški jezik Hrvaški jezik Znanstveno delo 2017-07-05 10:12:46 2017-07-05 10:14:45 2022-08-01 13:01:01 2019-07-11 15:54:38 2002 0 0 str. 271-280 št. 1 Letn. 75 2002 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 0011-1643 677.46.016 22807 6989590 0011-1643 URN:SI:UM:DK:PF8ZDMLU Croatica_Chemica_Acta_2002_Persin,_Stana-Kleinschek,_Kreze_Hydrophilichydrophobic_characteristics_of_different_cellulose_fibres_monitore.pdf Croatica_Chemica_Acta_2002_Persin,_Stana-Kleinschek,_Kreze_Hydrophilichydrophobic_characteristics_of_different_cellulose_fibres_monitore.pdf 1 AED3DBCC9AD9F503C87A416AD1B6F073 49e2f4cc8dec0a2e4fc8313e03483ed7787002d38893537d65ff9fc0563dd0c9 5b3664ca-7c0e-11eb-bb7a-00155d0001ca 20.500.12556/dkum/f3a1c9fa-6cba-43bf-9065-9ff91b0b2bf0 https://dk.um.si/Dokument.php?lang=slv&id=113664 http://hrcak.srce.hr/127502 1 https://dk.um.si/Dokument.php?lang=slv&id=113663 Fakulteta za strojništvo 0 0 0