20.500.12556/RUL-128670 Chitosan based regenerated cellulose fibers functionalized with plasma and ultrasound The great potential of regenerated cellulose fibers, which offer excellent possibilities as a matrix for the design of bioactive materials, was the lead for our research. We focused on the surface modification of fibers to improve the sorption properties of regenerated cellulose and biocomposite regenerated cellulose/chitosan fibers, which are on the market. The purpose of our investigation was also the modification of regenerated cellulose fibers with the functionalization by chitosan as a means of obtaining similar properties to biocomposite regenerated cellulose/chitosan fibers on the market. Argon gas plasma was used for fiber surface activation and chitosan adsorption. Ultrasound was also used as a treatment procedure for the surface activation of regenerated cellulose fibers and treatment with chitosan. Analyses have shown that ultrasonic energy or plasma change the accessibility of free functional groups, structure and reactivity, especially in regenerated cellulose fibers. Changes that occurred in the morphology and in the structure of fibers were also reflected in their physical and chemical properties. Consequently, moisture content, sorption properties and water retention improved. chitosan regenerated cellulose fibers surface modification plasma ultrasonic treatment hitozan regenerirana celulozna vlakna plazma true false true Angleški jezik Slovenski jezik Članek v reviji 2021-07-22 13:26:08 2021-07-22 13:26:09 2022-09-07 04:16:31 0000-00-00 00:00:00 2018 0 0 12 str. iss. 4, art. 133 Vol. 8 April 2018 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 677 2079-6412 10.3390/coatings8040133 3475056 RAZ_Vrabic_Brodnjak_Urska_2018.pdf RAZ_Vrabic_Brodnjak_Urska_2018.pdf 1 6895D17F0C58184A60D3E7544EE3D570 e186212289238048e42db16c0903d36895f0b107c219845d5bc8f9dc4390a790 c909ca89-eae0-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=145484 http://www.mdpi.com/2079-6412/8/4/133 1 747c5a73-eadf-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=145483 Naravoslovnotehniška fakulteta 0 0 0