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Title:TERMOMEHANSKA ANALIZA POLIKARBONATA, POLIVINIL KLORIDA IN POLIMETIL METAKRILATA
Authors:ID Hotko, Martina (Author)
ID Pečar, Darja (Mentor) More about this mentor... New window
ID Goršek, Andreja (Comentor)
Files:.pdf MAG_Hotko_Martina_2015.pdf (1,91 MB)
MD5: 3D31EBC9331318AA822AEB6C8891F574
 
Language:Slovenian
Work type:Master's thesis/paper
Typology:2.09 - Master's Thesis
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:V okviru magistrske naloge smo izvedli raziskavo merjenja termomehanskih lastnosti polimerov, in sicer, polikarbonata, polimetil metakrilata in polivinil klorida. Poznavanje termomehanskih lastnosti materiala nam je v veliko pomoč pri ugotavljanju njegovih karakteristik in kasnejših možnosti uporabe. S termomehansko analizo (TMA) smo določili temperature steklastega prehoda in koeficiente linearnega temperaturnega raztezka vseh treh materialov. Pri testiranju smo uporabljali različne sile obremenitve vzorca. Za primerjavo smo izmerili temperaturo steklastega prehoda z diferenčno dinamično kalorimetrijo (DSC). Za pridobljene vrednosti smo poskušali poiskati teoretično razlago. Izmerjeni temperaturi steklastega prehoda polikarbonata in polimetil metakrilata se dobro ujemata z literaturnimi vrednostmi, medtem ko so pri polivinil kloridu odstopanja od literaturnih vrednosti nekoliko večja. Odstopanja smo pripisali nenatančnim podatkom o sestavi materiala. Dobljene vrednosti koeficientov linearnega temperaturnega raztezka se ne ujemajo z literaturnimi vrednostmi, kar nakazuje, da bi morali meritve izvesti z drugačno sondo.
Keywords:Polikarbonat, polimetil metakrilat, polivinil klorid, temperatura steklastega prehoda, TMA, DSC.
Place of publishing:Maribor
Publisher:[M. Hotko]
Year of publishing:2015
PID:20.500.12556/DKUM-55667 New window
UDC:678.743.2(043.2)
COBISS.SI-ID:19444246 New window
NUK URN:URN:SI:UM:DK:8DZIQE8D
Publication date in DKUM:06.01.2016
Views:2329
Downloads:368
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FKKT
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Secondary language

Language:English
Title:THERMOMECHANICAL ANALYSIS OF OLYCARBONATE, POLYVINYL CHLORIDE AND POLYMETHYL METHACRYLATE
Abstract:In the framework of this master’s thesis we conducted a research on measuring thermomechanical properties of polymers, that is polycarbonate, polymethyl methacrylate and polyvinyl chloride. Knowing thermomechanical properties of a material is of great help when determining its characteristics and consequently its possible applications. With help of thermomechanical analysis (TMA) we determined glass transition temperatures and linear thermal expansion coefficients for all of the three above mentioned materials. While testing we applied different forces on samples. For comparison of determined glass transition temperatures, differential scanning calorimetry (DSC) was used. Glass transition temperatures of polycarbonate and polymethyl methacrylate are in good agreement with values found in the literature, while in the case of polyvinyl chloride we observed a deviation from those values. We believe that the reason for this deviation is unknown exact composition of the tested material. Linear thermal expansion coefficients do not correspond to literature values, which indicates that measurements should be done using a different type of measuring probe.
Keywords:Polycarbonate, polymethyl methacrylate, polyvinyl chloride, glass transition point, TMA, DSC.


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