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master's thesis
Priprema i karakterizacija kompozita polietilena s metalnim oksidima
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2018. urn:nbn:hr:149:619883
Horvat, Nika
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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Horvat, N. (2018). Priprema i karakterizacija kompozita polietilena s metalnim oksidima (Master's thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:619883

Horvat, Nika. "Priprema i karakterizacija kompozita polietilena s metalnim oksidima." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2018. https://urn.nsk.hr/urn:nbn:hr:149:619883

Horvat, Nika. "Priprema i karakterizacija kompozita polietilena s metalnim oksidima." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2018. https://urn.nsk.hr/urn:nbn:hr:149:619883

Horvat, N. (2018). 'Priprema i karakterizacija kompozita polietilena s metalnim oksidima', Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 27 December 2024, https://urn.nsk.hr/urn:nbn:hr:149:619883

Horvat N. Priprema i karakterizacija kompozita polietilena s metalnim oksidima [Master's thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2018 [cited 2024 December 27] Available at: https://urn.nsk.hr/urn:nbn:hr:149:619883

N. Horvat, "Priprema i karakterizacija kompozita polietilena s metalnim oksidima", Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:149:619883

Metadata
TitlePriprema i karakterizacija kompozita polietilena s metalnim oksidima
Title (english)Preparation and characterization of polyethylene/metal oxide composites
AuthorNika Horvat
MentorLjerka Kratofil Krehula (mentor)
Committee memberLjerka Kratofil Krehula (predsjednik povjerenstva)
Committee memberEmi Govorčin Bajsić (član povjerenstva)
Committee memberHelena Otmačić Ćurković (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2018-07-11, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Chemical Engineering in Material Development
Abstract
Kompozitni materijali s polimernom matricom sve češće zamjenjuju mnoge klasične materijale. Modifikacija svojstava polimerne matrice može se ostvariti dodatkom metalnih oksida kao punila te se na taj način dobivaju kompozitni materijali željenih svojstava. Modifikacija ovisi o vrsti metalnih oksida, veličini i raspodjeli čestica te o masenom udjelu dodatka. U ovom su radu pripremljeni uzorci kompozita polietilena niske gustoće (LDPE) s različitim vrstama metalnih oksida: PE + titanijev dioksid, PE + cinkov oksid, PE + silicijev dioksid. Isto tako, dobiveni su i uzorci čistog polietilena s nanocelulozom te polietilena s metalnim oksidima i nanocelulozom. Kako bi se ispitala svojstva pripremljenih uzoraka, koristile su se različite metode karakterizacije: FTIR spektroskopija, termogravimetrijska analiza, određivanje mehaničkih i barijernih svojstava te UV/Vis spektroskopija. Rezultati pokazuju da se termička stabilnost polietilena povećava dodatkom metalnih oksida. Dodatak nanoceluloze kompozitu znatno poboljšava mehanička svojstva. Pri upotrebi LDPE/TiO2 i LDPE/ZnO kompozita, mogu se dobiti materijali povećane otpornosti prema UV zračenju. Propusnost se povećava dodatkom aditiva osim u slučaju kompozita LDPE/TiO2 koji pokazuje odlične rezultate.
Abstract (english)
Classic materials are recently often replaced with composite materials with polymer matrix. Modification of polymer properties can be performed with metal oxides in order to obtain composites with improved properties. Modification depends on type of metal oxide, size and distribution of particles and mass fraction. In this paper composites of LDPE with metal oxides are prepared: PE + titanium dioxide, PE + zinc oxide, PE + silicon dioxide. There are samples with nanocellulose and nanocelluose with metal oxides prepared, as well. To test properties of prepared samples, following characterization methods were used: FTIR spectroscopy, termogravimetric analysis, determination of mechanical and barrier properties and UV/Vis spectroscopy. The results show that thermal stability is increased with addition of metal oxides. Addition of nanocellulose to composite improves mechanical properties. When LDPE/TiO2 i LDPE/ZnO composites are used, materials with increased resistance to UV radiation can be obtain. Permeability is increasing with addition of fillers except in case of LDPE/TiO2 composite.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:619883
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
Terms of useLicence In copyright icon
Created on2020-05-26 13:21:46