20.500.12556/RUL-119356 Vpliv aditiva na morfološke, mehanske in reološke lastnosti recikliranega polipropilena The effect of additive on the morphological, mechanical and rheological properties of recycled polypropylene 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. 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. izotaktični polipropilen recyclobyk 4371 morfologija nanoindentacija mehanske lastnosti reološke lastnosti isotactic polypropylene recyclobyk 4371 morphology nanoindentation mechanical properties rheological properties true false false [G. Živec] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2020-09-08 08:32:54 2020-09-08 08:32:56 2023-11-14 12:56:53 0000-00-00 00:00:00 2020 0 Ljubljana 0 XXII, 57 str., [6] str. pril. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 678.742.3:66.022.3:620.1(043.2) 223727 28735747 5787.pdf 5787.pdf 1 1D6D31E638D4DB3CD322EE45F3BBE66D fd1f6c85b677b8885a26ffbb2f48c42b9fd9c3d4cbd3e53cab3b6f1755879df9 ce05d276-a1b9-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=134058 Fakulteta za strojništvo 0 0 0