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undergraduate thesis
Morfologija i dimenzijska stabilnost mješavine EPDM kaučuka i reciklirane gume
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2015. urn:nbn:hr:149:700313
Živković, Ivana
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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Živković, I. (2015). Morfologija i dimenzijska stabilnost mješavine EPDM kaučuka i reciklirane gume (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:700313

Živković, Ivana. "Morfologija i dimenzijska stabilnost mješavine EPDM kaučuka i reciklirane gume." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2015. https://urn.nsk.hr/urn:nbn:hr:149:700313

Živković, Ivana. "Morfologija i dimenzijska stabilnost mješavine EPDM kaučuka i reciklirane gume." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2015. https://urn.nsk.hr/urn:nbn:hr:149:700313

Živković, I. (2015). 'Morfologija i dimenzijska stabilnost mješavine EPDM kaučuka i reciklirane gume', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 26 November 2024, https://urn.nsk.hr/urn:nbn:hr:149:700313

Živković I. Morfologija i dimenzijska stabilnost mješavine EPDM kaučuka i reciklirane gume [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2015 [cited 2024 November 26] Available at: https://urn.nsk.hr/urn:nbn:hr:149:700313

I. Živković, "Morfologija i dimenzijska stabilnost mješavine EPDM kaučuka i reciklirane gume", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2015. Available at: https://urn.nsk.hr/urn:nbn:hr:149:700313

Metadata
TitleMorfologija i dimenzijska stabilnost mješavine EPDM kaučuka i reciklirane gume
Title (english)Morphology and dimensional stability of EPDM and recycled rubber blends
AuthorIvana Živković
MentorZlata Hrnjak-Murgić (mentor)
Committee memberZlata Hrnjak-Murgić (predsjednik povjerenstva)
Committee memberZvonimir Katančić (član povjerenstva)
Committee memberVanja Kosar (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2015-09-17, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Chemical Engineering in Material Development
Abstract
U ovome radu provedena su ispitivanja djelovanja nafte na dimenzijsku stabilnost polimerne mješavine etilen/propilen/dienskog kaučuka (EPDM) i reciklirane gume tj. bubrenje mješavine u nafti. Pripremljene su tri serije uzoraka koje su sadržavale različite udjele gumenog reciklata. Prve dvije serije razlikovale su se po udjelu umrežavala, dok je treća serija imala miješani gumeni reciklat za razliku od prve dvije serije koje su sadržavale homogeni EPDM reciklat. Svim ispitivanim uzorcima određen je stupanj bubrenja u sirovoj nafti u vremenskom periodu od 0,5 h do 168 h. Osim ovisnosti stupnja bubrenja o vremenu uzorcima je određena i morfologija pretražnom elektronskom mikroskopijom (SEM). Iz rezultata je vidljivo da stupanj bubrenja polimernih mješavina u početku naglo raste, a zatim sve sporije te se nakon 7 dana postiže ravnotežni stupanj bubrenja nakon kojeg uzorak dalje ne bubri. Kod uzoraka koji su sadržavali homogeni EPDM reciklat vidljivo je da se stupanj bubrenja smanjuje s porastom udjela reciklata, dok u slučaju heterogenog reciklata stupanj bubrenja se povećava. Najfinija morfologija je vidljiva kod uzoraka koji sadrže veći udio umrežavala, a ti uzorci su pokazali i najmanje bubrenja, dok je kod uzoraka s miješanim reciklatom vidljiva vrlo gruba morfologija.
Abstract (english)
In this work investigation of effect of crude oil on dimensional stability i.e. swelling degree of polymer blend of ethylene/propylene/diene rubber (EPDM) and recycled rubber was carried out. Three series of samples containing different loadings of recycled rubber were prepared. The first two series had homogeneous EPDM recyclate but they have differed by crosslinking agent loading, while a third series had a heterogeneous mixed tire recyclate. For all tested samples, the swelling degree in crude oil over a period of 0.5 h to 168 h was measured. Besides the dependence of swelling degree on time, morphology of samples was determined using scanning electron microscopy (SEM). The results showed that the swelling degree of polymer blends increases fast in the beginning bur more slowly afterword and after 7 days equilibrium swelling degree is achieved after which the samples do not swell anymore. For samples containing homogeneous EPDM recyclate it is evident that the swelling degree decreases with increase of loading of recyclate, while in the case of heterogeneous recyclate swelling degree increases with recyclate loading. The finest morphology is visible in samples containing higher proportion of crosslinking agent, and these samples showed the smallest swelling degree, while the samples with mixed recyclate have very rough morphology.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:700313
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
Access conditionsOpen access
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Created on2016-11-28 16:00:40