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master's thesis
Ispitivanje UV stabilnosti kompozita polietilen niske gustoće/akaganeit
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2020. urn:nbn:hr:149:346355
Novosel, Nina
University of Zagreb
Faculty of Chemical Engineering and Technology

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

Cite this document

Novosel, N. (2020). Ispitivanje UV stabilnosti kompozita polietilen niske gustoće/akaganeit (Master's thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:346355

Novosel, Nina. "Ispitivanje UV stabilnosti kompozita polietilen niske gustoće/akaganeit." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2020. https://urn.nsk.hr/urn:nbn:hr:149:346355

Novosel, Nina. "Ispitivanje UV stabilnosti kompozita polietilen niske gustoće/akaganeit." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2020. https://urn.nsk.hr/urn:nbn:hr:149:346355

Novosel, N. (2020). 'Ispitivanje UV stabilnosti kompozita polietilen niske gustoće/akaganeit', Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 04 November 2024, https://urn.nsk.hr/urn:nbn:hr:149:346355

Novosel N. Ispitivanje UV stabilnosti kompozita polietilen niske gustoće/akaganeit [Master's thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2020 [cited 2024 November 04] Available at: https://urn.nsk.hr/urn:nbn:hr:149:346355

N. Novosel, "Ispitivanje UV stabilnosti kompozita polietilen niske gustoće/akaganeit", Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:149:346355

Metadata
TitleIspitivanje UV stabilnosti kompozita polietilen niske gustoće/akaganeit
Title (english)The study of UV stability of low density polyethylene/akaganeite composites
AuthorNina Novosel
MentorLjerka Kratofil Krehula (mentor)
Committee memberLjerka Kratofil Krehula (predsjednik povjerenstva)
Committee memberEmi Govorčin Bajsić (član povjerenstva)
Committee memberVanja Gilja (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
Unatoč činjenici da zbog svojih svojstava polimerni materijali pronalaze široku primjenu, ponekad oni ne ispunjavaju uvjete za primjenu u određenom području. Polietilen (PE) jedan je od najčešće primjenjivanih polimera zbog odličnih mehaničkih, toplinskih i optičkih svojstava te kemijske inertnosti. Svojstva različitih vrsta PE variraju, a polietilen niske gustoće (LDPE) najvažniji je materijal za proizvodnju ambalaže. Polimerni materijali, kao jedni od najšire primjenjivanih materijala modernog doba, suočavaju se s problemom osjetljivosti na UV zračenje koje uzrokuje UV degradaciju. UV degradacija se očituje promjenom kemijske i fizikalne strukture polimernog lanca čime dolazi do skraćenja uporabnog vijeka proizvoda. Dodatak UV stabilizatora polimernoj matrici može umanjiti negativan utjecaj UV zračenja ometajući i usporavajući proces degradacije. Željezovi oksidi imaju potencijal za primjenu u ulozi UV stabilizatora u polimernoj matrici. Akaganeit je željezov oksihidroksid koji pripada skupini željezovih oksida, a njegovu je sposobnost UV stabilizacije potrebno istražiti. U ovome je radu prikazan tijek provedene karakterizacije uzoraka kompozita polietilen niske gustoće/akaganeit, korištene metode karakterizacije te rezultati dobiveni istraživanjem.
Abstract (english)
Despite the fact that polymer materials are widely applied because of their properties, sometimes they don't fulfill the requirements for the application in a specific field. Polyethylene (PE) is one of the most popular polymers because of its excellent mechanical, thermal and optical properties and because it is chemically inert. The properties of different types of PE are varying, whereas low density polyethylene (LDPE) is the most important material in packaging manufacturing. Polymer materials, as one of the most widely applied materials of the modern age, are facing the problem of sensitivity to UV radiation which causes UV degradation. UV degradation is manifested by the change in the chemical and physical structure of the polymer chain which causes the shortening of the product's service life. The addition of UV stabilizers to the polymer matrix can ease the negative effect of UV radiation by disturbing and slowing the process of degradation. Iron oxides have great potential for the application in the role of UV stabilizers in a polymer matrix. Akaganeite is a ferric oxyhydroxide which belongs to the group of iron oxides, and in order to know its UV stabilization properties, further research is needed. This study presents the course of the carried research of the samples of low density polyethylene/akaganeite composites, used methods of characterization and the results of the research.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:346355
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 conditionsClosed access
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Created on2022-03-06 16:42:03