prikaz prve stranice dokumenta Priprava polimernih kompozita umrežavanjem epoksidne smole s oksidnim nano i mikročesticama
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undergraduate thesis
Priprava polimernih kompozita umrežavanjem epoksidne smole s oksidnim nano i mikročesticama
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2020. urn:nbn:hr:149:263546
Gabrić, Blanka
University of Zagreb
Faculty of Chemical Engineering and Technology

Institutional repository: Repository of Faculty of Chemical Engineering and Technology University of Zagreb

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Gabrić, B. (2020). Priprava polimernih kompozita umrežavanjem epoksidne smole s oksidnim nano i mikročesticama (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:263546

Gabrić, Blanka. "Priprava polimernih kompozita umrežavanjem epoksidne smole s oksidnim nano i mikročesticama." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2020. https://urn.nsk.hr/urn:nbn:hr:149:263546

Gabrić, Blanka. "Priprava polimernih kompozita umrežavanjem epoksidne smole s oksidnim nano i mikročesticama." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2020. https://urn.nsk.hr/urn:nbn:hr:149:263546

Gabrić, B. (2020). 'Priprava polimernih kompozita umrežavanjem epoksidne smole s oksidnim nano i mikročesticama', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 27 July 2024, https://urn.nsk.hr/urn:nbn:hr:149:263546

Gabrić B. Priprava polimernih kompozita umrežavanjem epoksidne smole s oksidnim nano i mikročesticama [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2020 [cited 2024 July 27] Available at: https://urn.nsk.hr/urn:nbn:hr:149:263546

B. Gabrić, "Priprava polimernih kompozita umrežavanjem epoksidne smole s oksidnim nano i mikročesticama", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:149:263546

Metadata
TitlePriprava polimernih kompozita umrežavanjem epoksidne smole s oksidnim nano i mikročesticama
Title (english)Preparation of polyepoxide nanocomposite with oxide nano and micro fillers
AuthorBlanka Gabrić
MentorAnte Jukić (mentor)
MentorFabio Faraguna (komentor)
Committee memberAnte Jukić (predsjednik povjerenstva)
Committee memberFabio Faraguna (član povjerenstva)
Committee memberZvonimir Katančić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2020-09-24, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Basic Technical Sciences
Abstract
Cilj ovog rada je priprava i karakterizacija polimernih kompozita koji će pokazati poboljšane vrijednosti toplinske vodljivosti u odnosu na polazni polimer. Kao polimerna matrica poslužila je epoksidna smola koja je umreživana s 2 % inicijatora i dodana su joj različita mikro i nanopunila u masenim udjelima od 0,5; 2; 5 i 20 %. Mjerene su i uspoređivane toplinske vodljivosti dobivenih kompozitnih materijala (za različite udjele punila) s uzorcima umrežene epoksidne smole. Termogravimetrijska analiza provedena je na uzorcima smole umrežene s različitim postotcima inicijatora, na uzorku za koji se pretpostavljalo da je ostvarena homogena raspodjela punila (punilo D) te na uzorku gdje je došlo do raslojavanja punila (punilo E). Kod uzoraka čistog polimera cilj je bio otkriti koliki postotak dodanog inicijatora ostvaruje najveći stupanj umreženja. Rezultati mjerenja toplinske vodljivosti pokazuju kontinuiran trend rasta za punilo A (mikropunilo) te za punila E i D (nanopunila). Rezultati termogravimetrijske analize upućuju na to da je raspodjela u slučaju kompozita s punilom D homogena dok je punilo E unutar kompozitnog materijala neravnomjerno raspodijeljeno. Za epoksidna smola/punilo A kompozit potrebno je napraviti dodatne analize kako bi se utvrdila dispergiranost punila.
Abstract (english)
The aim of this work is the preparation and characterization of polymer composites that will show improved thermal conductivity values in relation to the starting polymer. The polymer matrix was an epoxy resin which was crosslinked with 2 % initiatior and various micro an nanofillers were added in mass fractions of 0.5; 2; 5; and 20 %. The thermal condutivity of the obtained composite materials (for different filler frations) were measured and compared with crosslinked epoxy resin samples. Thermogravimetric analysis was performed on samples of epoxy resin crosslinked with different percentages of initiator, on a sample that was assumed to have a homogeneous distribution of filler (composite with filler D) and on a sample where filler stratifiation occured (composite with filler E). In the case of pure polymer samples, the aim was to find out what percentage of the added initiator achieves the highest degree of crosslinking. The results of thermal conutivity measurements show a continuos growth for filler A (mirofiller) and for fillers E and D (nanofillers). The results of the thermogravimetric analysis suggest that the distribution in the case of composites with filler D is homogeneous while the filler E within the composite material is unevenly distributed. For epoxy resin/ filler A composite, additional analyses need to be performed to determine the dispersion of the filler.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:263546
Study programmeTitle: Materials Science and Engineering - Undergraduate study
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva)
Type of resourceText
File originBorn digital
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Created on2023-05-03 13:22:19