20.500.12556/RUL-136557 Izdelava filamenta iz mešanice polivinil alkohola in odpadnega biološkega materiala Extrusion of filament from mixture of PVA and biobased residual material V diplomskem delu smo izdelali filament iz polivinil alkohola in mletih lešnikovih lupin. Za slednje smo se odločili, ker gre za enega izmed odpadnih bioloških materialov, ki se lahko popolnoma razgradi in bi ga sicer zavrgli. Filament smo izdelali iz obeh vhodnih materialov v prahu, ju zmešali v različnih koncentracijah in granulirali, granule pa smo ekstrudirali. Za nastali filament smo izvedli analize mehanskih lastnosti in pod mikroskopom preverili homogenost materiala. Ugotovili smo, da so mešanice do 30 % primerne za izdelavo filamenta, vendar se mehanske lastnosti z višanjem deleža slabšajo. Po končanih poskusih smo podali še predloge za možne izboljšave. In this diploma thesis we made a filament from polyvinyl alcohol and ground hazelnut shells. We chose the latter because it is one of the biobased residual material that can be completely degraded and would otherwise be thrown away. The filament was made from both powdered input materials, mixed in different concentrations and granulated; the resulted granules were extruded. For the resulting filament we performed analyses of mechanical properties and checked the homogeneity of the material under a microscope. We found that are mixtures up to 30 % suitable for the production of filament, but the mechanical properties worsen with increasing proportion of hazelnut shells. After the experiment, we made suggestions for possible improvements. polivinil alkohol odpadni biološki material lešnikove lupine granulacija filament ekstruzija polyvinyl alcohol biobased residual material hazelnut shell granulation filament extrusion true false false [U. Štampfl] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2022-05-11 08:30:24 2022-05-11 08:30:28 2023-12-01 12:24:20 0000-00-00 00:00:00 2022 0 Ljubljana 0 XXII, 42 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.79+621.039.73:661.728(043.2) 238126 108016899 14112.pdf 14112.pdf 1 68AC3DAAE35D6314EFB7E3DA22850AE3 b093616a605d50ea38ef1ba7cbec39218cf54eb9f4a3f89d2e65471c2d633c3f bdb48ba9-d0f3-11ec-8aca-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=156254 Fakulteta za strojništvo 0 0 0