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master's thesis
Priprava i toplinska karakterizacija polimernih mješavina na osnovi polipropilena (PP) i linearnog polietilena niske gustoće (LLDPE)
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2020. urn:nbn:hr:149:361039
Tolo, Karolina
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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Tolo, K. (2020). Priprava i toplinska karakterizacija polimernih mješavina na osnovi polipropilena (PP) i linearnog polietilena niske gustoće (LLDPE) (Master's thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:361039

Tolo, Karolina. "Priprava i toplinska karakterizacija polimernih mješavina na osnovi polipropilena (PP) i linearnog polietilena niske gustoće (LLDPE)." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2020. https://urn.nsk.hr/urn:nbn:hr:149:361039

Tolo, Karolina. "Priprava i toplinska karakterizacija polimernih mješavina na osnovi polipropilena (PP) i linearnog polietilena niske gustoće (LLDPE)." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2020. https://urn.nsk.hr/urn:nbn:hr:149:361039

Tolo, K. (2020). 'Priprava i toplinska karakterizacija polimernih mješavina na osnovi polipropilena (PP) i linearnog polietilena niske gustoće (LLDPE)', Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 26 November 2024, https://urn.nsk.hr/urn:nbn:hr:149:361039

Tolo K. Priprava i toplinska karakterizacija polimernih mješavina na osnovi polipropilena (PP) i linearnog polietilena niske gustoće (LLDPE) [Master's thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2020 [cited 2024 November 26] Available at: https://urn.nsk.hr/urn:nbn:hr:149:361039

K. Tolo, "Priprava i toplinska karakterizacija polimernih mješavina na osnovi polipropilena (PP) i linearnog polietilena niske gustoće (LLDPE)", Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:149:361039

Metadata
TitlePriprava i toplinska karakterizacija polimernih mješavina na osnovi polipropilena (PP) i linearnog polietilena niske gustoće (LLDPE)
Title (english)Preparation and thermal characterization of polymer blends based on polypropylene (PP) and linear low density polyethylene (LLDPE)
AuthorKarolina Tolo
MentorEmi Govorčin Bajsić (mentor)
Committee memberEmi Govorčin Bajsić (predsjednik povjerenstva)
Committee memberLjerka Kratofil Krehula (član povjerenstva)
Committee memberNevenka Vrbos (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2020-06-30, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
U današnje vrijeme sve više se istražuje mješljivost različitih polimera, kako bi se njihovom modifikacijom dobili novi materijali, boljih svojstava u odnosu na čiste polimere. Cilj ovoga rada bio je pripraviti i toplinski karakterizirati polimerne mješavine na osnovi polipropilena (PP) i linearnog polietilena niske gustoće (LLDPE). Mješavine LLDPE/PP pripravljene su umješavanjem u dvopužnom ekstruderu Rondol 21 mm LAB TWIN u omjerima: 10/90, 20/80, 30/70, 40/60, 50/50, 60/40, 70/30, 80/20, 90/10. Pripravljene LLDPE/PP mješavine karakterizirane su diferencijalnom pretražnom kalorimetrijom (DSC) te termogravimetrijskom analizom (TGA) u cilju određivanja toplinskih svojstava. DSC tehnika korištena je u cilju određivanja utjecaja različitog udjela LLDPE-a i PP-a na procese tijekom taljenja i kristalizacije sustava mješavina, dok se primjenom TGA tehnike pratila toplinska razgradnja mješavina. Na osnovi DSC rezultata dobivenih za LLDPE/PP mješavine temperatura taljenja ukazuje da postoje određeni stupanj interakcija između LLDPE-a i PP-a , također se i temperatura kristalizacije PP smanjuje dodatkom LLDPE-a. TGA rezultati pokazuju bolju toplinsku stabilnost LLDPE/PP mješavina u odnosu na čisti LLDPE i PP uslijed postojanja odgovarajućih interakcija između LLDPE i PP.
Abstract (english)
The miscibility of different polymers is being highly investigated in order to modification their properties to obtain new polymer materials with better properties compared to the neat polymers. The aim of this work was to prepare and thermaly characterization polymer blends based on polypropylene (PP) and low density polyethylene (LLDPE). The LLDPE/PP blends were prepared using a Rondol 21mm LAB TWIN twin–screw extruder in the content of: 10/90, 20/80, 30/70, 40/60, 50/50, 60/40, 70/30, 80/20, 90/10. Prepared LLDPE/PP blends were characterized by differential scanning calorimetry (DSC) and termogravimetric analysis (TGA). Using DSC is aimed at revealing the effects of different blending ratios of PP and LLDPE on the melting and crystallinity behaviour of the blend systems, while the application of TGA is to study the degradation characteristics of the blends. According to DSC results for LLDPE/PP blends melting point (Tm) indicated that there was some degree of interaction between LLDPE and PP, also the (Tc) of PP trends to decreased slightly with addition of LLDPE. The TGA results show that the LLDPE/PP blends are more thermally stable than the neat LLDPE and PP due to some interactions between LLDPE and PP.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:361039
Study programmeTitle: Materials Science and Engineering - Graduate study
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka kemijskog inženjerstva (magistar/magistra inženjer/inženjerka kemijskog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Embargo expiration date: 2020-06-30
Terms of useLicence In copyright icon
Created on2022-04-20 12:30:06