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Funkcionalizacija tekstilij z nano $TiO_2$ in $SiO_2$ prevlekami
Nika Veronovski, Silvo Hribernik, Majda Sfiligoj-Smole, 2008, review article

Abstract: Funkcionalizacija različnih materialov z uporabo prevlek iz nanodelcev je v zadnjem času predmet mnogih raziskav, vendar pa to tehnologijo na tekstilnem področju uporabljajo le v omejenem obsegu, in to kljub njenemu velikemu potencialu. Članek zajema pregled raziskav s področja nanoprevlek vlaken z delci titanovega in silicijevega dioksida, treba pa je poudariti, da so prevleke iz drugih anorganskih nanodelcev na vlaknih prav tako pomembne, saj z njimi dosegamo nove funkcionalne lastnosti tekstilij.
Keywords: nanotehnologija, nanoprevleke, $TiO_2$, nanodelci, $SiO_2$, $SiO_2$ nanodelci
Published: 31.08.2017; Views: 458; Downloads: 60
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Naravno obnovljiva rastlinska tekstilna vlakna
Petra Gašparič, Zala Urisk, Andreja Križanec, Marko Munda, Silvo Hribernik, Manja Kurečič, Tatjana Kreže, Majda Sfiligoj-Smole, 2012, review article

Abstract: Zaradi čedalje globlje ekološke ozaveščenosti in okoljevarstvenih zahtev obravnavamo v sodobnem času izdelavo, uporabo in odstranjevanje materialov veliko bolj kritično. Naravna celulozna vlakna so v tem pogledu izkazala svojo kakovost in popolnoma izpolnila vse ekološke kriterije. Naravna celulozna vlakna uporabljamo za tekstilne in tekstilnotehnične namene. To so vlakna iz ličja stebel, ki tvorijo vlaknate snopiče v notranjem ličju stebel dvokaličnic, in listna vlakna, ki tečejo po dolžini listov enokaličnic, ter semenska vlakna in vlakna iz plodov. Lan, konopljo, juto, ramijo, sisal ter kokos uporabljamo predvsem za tehnične namene. V zadnjem času pa izjemno narašča zanimanje za obnovljive surovinske vire tudi na področju vlaken. V ospredju so vlakna rastlinskega izvora. Pri iskanju novih surovinskih virov se proučujejo številne rastline, ki ne spadajo med tradicionalne vire vlaken, da bi iz njihovih stebel ali listov izolirali vlakna uporabnih lastnosti. Pri izolaciji vlaken pridobimo tehnična vlakna, kar pomeni, da so celulozna vlakna večcelične strukture, pri katerih so posamezne celice vezane v snopiče. Poleg konvencionalnih načinov izolacije vlaken se uporabljajo tudi številni sodobni postopki, kot so biotehnološki z uporabo encimov, itd. Način, kako vlakna izoliramo, vpliva na površinsko morfologijo vlaken. V prispevku so predstavljena nekatera vlakna, ki jih pridobivamo iz kmetijskih odpadkov, kot so slama žitaric, listi ananasa, sladkorni trs, hmeljeva stebla, kinoa, vlakna iz različnih trav itd.
Keywords: tekstilna vlakna, celulozna vlakna, lignocelulozna vlakna, rastlinska vlakna, naravno obnovljiva vlakna, netradicionalna vlakna
Published: 10.07.2015; Views: 1601; Downloads: 114
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Binding silver nano-particles onto viscose non-woven using different commercial sol-gel procedures
Tanja Pivec, Zdenka Peršin, Silvo Hribernik, Tina Maver, Mitja Kolar, Karin Stana-Kleinschek, 2012, original scientific article

Abstract: The paper presents possible solution of Ag binding using commercial sol-gel systems which enable its low release into a wound, providing a good antimicrobial effect on those bacterial cultures that are most likely present in the wound. The influence of different sol-gel systems on the hydrophilic properties of carrier materials and the level of released silver has been studied. The results showed that sol-gel as binding-systems could provide proper hydrophilic properties of material, whilst binding silver strongly enough providing at the same time excellent antimicrobial activity of the treated viscose meterials.
Keywords: silver nano-particles, sol-gel, viscose non-woven, silver release, hydrophilicity, antimicrobial properties
Published: 01.06.2012; Views: 2334; Downloads: 62
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Characterisation of grass fibres
Majda Sfiligoj-Smole, Tatjana Kreže, Simona Strnad, Karin Stana-Kleinschek, Silvo Hribernik, 2005, original scientific article

Abstract: The elementary grass fibres were isolated from different grass and legumes sorts, i.e. Ryegrass (Lolium hybridum Gumpenstein), Wheat straw, Trefoil (Trifolium pratense) and Lucerne (Medicago sativa). The fibre-samples were obtained in a bio-refinery, after the liquid phase containing proteins and lactic acid was eliminated from the ensiled and green grasses, respectively. For the isolation of elementary grass fibres different processes were used. The morphological characteristics of stems and leaves of different grass species were microscopically observed. On the microscopical stem and leaves cross-section samples the quantification of fibres sclerenchyma cells was performed. The quantitative analysis was carried out in order to obtain basic quantitative data on grass fibres, such as area of the single fibre or group of fibres, diameter of a single fibre or group of fibres and distances betweenthe most distant and least distant points on the area of the fibre. Measurements were made using a Carl Zeiss software KS 300, which runs on a computer connected to the image analysis equipment consisting of a microscope and a digital camera. In addition to, geometrical and mechanical properties ofisolated fibres and fibre bundles were determined. Due to the grass history,i.e. deformations and damages caused by the treatment of grasses in the bio-refinery, maturity grade, grass or legumes type and conditions during grass growth, the plant structures vary considerable in their properties.
Keywords: textile fibres, plant fibres, grass, properties
Published: 01.06.2012; Views: 1434; Downloads: 83
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