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Title:
ELEMENTARNA KARAKTERIZACIJA FUNKCIONALIZIRANIH VLAKEN
Authors:
ID
Munda, Marko
(Author)
ID
Fras Zemljič, Lidija
(Mentor)
More about this mentor...
ID
Strnad, Simona
(Comentor)
ID
Kovač, Minka
(Comentor)
Files:
UNI_Munda_Marko_2011.pdf
(1,69 MB)
MD5: 1A99D31468B1D67EA7DB0C25383CFDF8
PID:
20.500.12556/dkum/c36d094e-261c-4adb-9ab3-5c74656cc305
Language:
Slovenian
Work type:
Bachelor thesis/paper
Typology:
2.11 - Undergraduate Thesis
Organization:
FS - Faculty of Mechanical Engineering
Abstract:
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.
Keywords:
celulozna vlakna
,
polietilentereftalat
,
hitozan
,
funkcionalizacija
,
ATR FT-IR
,
Raman
Place of publishing:
Maribor
Publisher:
[M. Munda]
Year of publishing:
2011
PID:
20.500.12556/DKUM-20820
UDC:
677.1.014.32(043.2)
COBISS.SI-ID:
16461590
NUK URN:
URN:SI:UM:DK:DJUBZXXA
Publication date in DKUM:
12.10.2011
Views:
3038
Downloads:
312
Metadata:
Categories:
KTFMB - FS
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:
MUNDA, Marko, 2011,
ELEMENTARNA KARAKTERIZACIJA FUNKCIONALIZIRANIH VLAKEN
[online]. Bachelor’s thesis. Maribor : M. Munda. [Accessed 18 April 2025]. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=20820
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Hover the mouse pointer over a document title to show the abstract or click on the title to get all document metadata.
Secondary language
Language:
English
Title:
ELEMENTAL CHARACTERIZATION OF FUNCTIONALISED FIBRES
Abstract:
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.
Keywords:
cellulose fibers
,
polyethylene terephthalate
,
chitosan
,
functionalization
,
ATR FT-IR
,
Raman
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