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Uporaba nanofibrilirane celuloze za izdelavo hidrogelov : diplomsko delo = Use of nanofibrillated cellulose for the manufacture of hydrogels : B. Sc. thesisStante, LukaCilj diplomskega dela je bil priprava hidrogelov iz celuloznih nanofibril z navadno alkalno obdelavo in študij vpliva koncentracije bazične raztopine NaOH na njihovo tvorbo. Z različnimi ... koncentracijami alkalne raztopine smo želeli določiti optimalno razmerje med suspenzijo NFC, NaOH in vodo za tvorbo obstojnega hidrogela. K hidrogelom smo dodali kostanjev tanin, z namenom tvorbe hidrogela, ki bi imel antibakterijsko delovanje, saj je znano, da tanini dobro zavirajo rast bakterij. Iz tako pripravljenih, kompaktnih in stabilnih kompozitnih hidrogelov smo izmerili in izračunali maso, volumen, gostoto, vsebnost vode, poroznost in vsebnost suhe snovi hidrogela. Najboljše lastnosti in obstojnost so imeli hidrogeli, kjer je bila k 20 g NFC (1,3 %) dodana bazična raztopina v masnem razmerju 20/60 in 30/50 NaOH in destilirane vode. Antibakterijsko delovanje tanina je bilo moč opaziti že pri 1 % dodanega tanina glede na skupno maso hidrogela. S povečevanjem koncentracije tanina nad 3 % glede na maso NFC suspenzije smo negativno vplivali na kompaktnost hidrogelov. Tako smo ugotovili, da dodajanje tanina v koncentracijah, večjih kot 3 %, ni smiselno, saj ogrozimo kompaktnost hidrogela, antibakterijske lastnosti ostanejo enake, poleg tega pa se veliko tanina iz hidrogela izpere.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [L. Stante], 2019Language - slovenianCOBISS.SI-ID - 3127177
Author
Stante, Luka
Other authors
Poljanšek, Ida |
Vek, Viljem |
Oven, Primož
Topics
hidrogel |
nanofibrilirana celuloza |
tanin |
antibakterijsko delovanje |
hydrogel |
nanofibrillated cellulose |
tannin |
antibacterial activity
Library/institution |
City | Acronym | For loan | Other holdings |
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BF, Department of Wood Science and Technology, Lj. | Ljubljana | BFLES |
reading room 1 cop.
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Year | Impact factor | Edition | Category | Classification | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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DRS, in which the journal is indexed
Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Stante, Luka | |
Poljanšek, Ida | 12041 |
Vek, Viljem | 30758 |
Oven, Primož | 11223 |
Source: Personal bibliographies
and: SICRIS
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