20.500.12556/DKUM-20820 ELEMENTARNA KARAKTERIZACIJA FUNKCIONALIZIRANIH VLAKEN ELEMENTAL CHARACTERIZATION OF FUNCTIONALISED FIBRES V nalogi je izvedena protimikrobna funkcionalizacija dveh vlaknotvornih polimerov (naravni polimer: celuloza, sintetični polimer: polietilentereftalat) ki se najpogosteje uporabljata v najnaprednejših panogah kot so embaliranje živilskih izdelkov, razvoj novih medicinskih in sanitetnih materialov, ter vsadkov, itd. Za funkcionalizacijo le-teh smo uporabili polisaharid hitozan in sicer absorbiran v obliki tankih površinskih slojev s katerimi vnašamo v vlakna nove funkcionalne skupine, ki so gonilna sila biološke aktivnosti. Zatorej je bistvenega pomena uporaba tehnik, ki omogočajo analizo površinske elementarne sestave funcionaliziranih materialov. Cilj diplomske naloge je tako preučevanje površin funkcionaliziranih materialov z uporabo spektroskopskih metod ATR-FTIR ter komplementarne Raman spektrofotometrije za kvalitativno analizo funkcionalnih skupin vlaken. Doslej se je obema tehnikama namenjalo premalo pozornosti in sta tako okviru diplomske naloge podrobno preučeni in optimirani za uporabo vlaknotvornih polimerov funkcionaliziranih s polisaharidi. Analize funkcionaliziranih PET folij so pokazale da se hitozan v obliki filma oprime nosilnega materiala le mehansko in/ali s fizikalno adsorpcijo, medtem ko pa na celuloznih vlaknih ni moč zaslediti hitozana. The thesis discusses the implementation of antibacterial functionalization of two fibre formation polymers (a natural polymer: cellulose, a synthetic polymer: polyethylene terephthalate) which are most commonly used in most advanced sectors, as packing food products, development of new medical materials and implants etc. Polysaccharides as chitosan was used for functionalization, namely in the form of thin surface layers with which new functional groups were integrated into the fibres, and they formed the engine of biological activity. Therefore it is of vital importance to use the techniques which enable the analysis of superficial elementary composition of functionalized materials. The purpose of my thesis is to examine surfaces of functionalized materials by using the spectroscopic method ATR-FTIR and complementary Raman spectrophotometrics for quality analysis of functional groups of fibres. Until now both tehniques have not received enough attation and therefore are examined in details in my thesis and streamlined for the use of fibre formation polymers which are functionalized by polysaccarides. The analysis of functionalized PET foils has shown that the chitosan film attaches to the underlying material only mechanically and/or by means of physical adsorpiton; on the other hand, no chitosan can be detected on cellulose fibres. celulozna vlakna polietilentereftalat hitozan funkcionalizacija ATR FT-IR Raman cellulose fibers polyethylene terephthalate chitosan functionalization ATR FT-IR Raman true true false [M. Munda] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2011-10-03 16:38:02 2011-10-12 11:57:46 2022-04-14 08:17:27 2023-12-27 03:23:21 2011 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 677.1.014.32(043.2) 16461590 URN:SI:UM:DK:DJUBZXXA UNI_Munda_Marko_2011.pdf UNI_Munda_Marko_2011.pdf 1 1A99D31468B1D67EA7DB0C25383CFDF8 89603d1bd7f3dd201806179a890e5b2769d0af648717964c3fdc87aca1fb902a b62b189c-7c05-11eb-bb7a-00155d0001ca 20.500.12556/dkum/c36d094e-261c-4adb-9ab3-5c74656cc305 https://dk.um.si/Dokument.php?lang=slv&id=26067 Fakulteta za strojništvo 0 0 0