Vpliv aditiva na morfološke, mehanske in reološke lastnosti recikliranega polipropilena

Živec, Gregor (author), Slemenik Perše, Lidija (mentor)

Problematika magistrske naloge je določiti kakšne mehanske, reološke in morfološke spremembe se zgodijo pri večkrat recikliranemu izotaktičnemu polipropilenu in kako dodatek komercialno dostopnega aditiva vpliva na te lastnosti. Problem je obravnavan praktično z eksperimentalnim delom, kjer je bil kot material izbran izotaktični polipropilen, ki je bil 20-krat recikliran brez in z dodatkom aditiva. Pri posameznih stopnjah recikliranja smo odvzeli vzorce, ki smo jih analizirali s polariziranim optičnim mikroskopom, reometrom in nanoindenterjem. Dobljene rezultate smo primerjali, da bi ugotovili vpliv dodatka na fizikalne lastnosti recikliranega polipropilena. V zaključku so podani tudi napotki za izboljšave in nadaljnje delo.

• Language: Slovenian
• Keywords: izotaktični polipropilen, recyclobyk 4371, morfologija, nanoindentacija, mehanske lastnosti, reološke lastnosti
• Work type: Master's thesis/paper
• Typology: 2.09 - Master's Thesis
• Organization: FS - Faculty of Mechanical Engineering
• Place of publishing: Ljubljana
• Publisher: [G. Živec]
• Year: 2020
• Number of pages: XXII, 57 str., [6] str. pril.
• PID: 20.500.12556/RUL-119356
• UDC: 678.742.3:66.022.3:620.1(043.2)
• COBISS.SI-ID: 28735747
• Publication date in RUL: 08.09.2020

ŽIVEC, Gregor, 2020, Vpliv aditiva na morfološke, mehanske in reološke lastnosti recikliranega polipropilena [online]. Master’s thesis. Ljubljana : G. Živec. [Accessed 27 April 2025]. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=119356

Secondary language

• Language: English
• Title: The effect of additive on the morphological, mechanical and rheological properties of recycled polypropylene

Abstract

The aim of the thesis was to determine the mechanical, rheological and morphological changes, which are the result of extensive recycling of isotactic polypropylene. Moreover, the study was extended to the effect of commercially available additive on the above mentioned properties. The master thesis was performed experimentally, where the isotactic polypropylene was recycled twenty times with and without the additive. Samples were analysed at different recycling stages with polarized optical microscopy, rheometer and nanoindenter. In the final chapter, the results were commented and possible further improvements are given.

• Keywords: isotactic polypropylene, recyclobyk 4371, morphology, nanoindentation, mechanical properties, rheological properties