20.500.12556/RUL-158777 Izbira najprimernejšega premaznega sistema za lesen ovitek mobilnega telefona diplomski projekt Selection of the most appropriate coating system for a wooden mobile phone case B. Sc. thesis Pri ovitkih za telefon je poleg videza pomembna tudi njihova zaščitna funkcija. Da bi ugotovili, kakšno zaščito mobilnega telefona lahko dosežemo z bukovim ali hrastovim lesenim ovitkom, obdelanim z dvokomponentnim poliuretanskim vodnim lakom, smo preskušali oprijemnost premaznega sistema in odpornost proti razenju, tekočinam in udarcem. Rezultate smo medsebojno primerjali. Ocenili smo vrednosti, za katere menimo, da so za ovitke iz površinsko obdelanega lesa sprejemljive, in z njimi primerjali rezultate meritev. Pri bukovih vzorcih smo določili nekoliko boljše lastnosti, kar je najverjetneje posledica anatomskih značilnosti hrastovega lesa, ki smo ga uporabili za pripravo vzorcev (dokaj široke branike). Menimo, da sta tako površinsko obdelana bukovina kot hrastovina izkazala povsem zadovoljive lastnosti, zato bi se lahko odločili za nakup lesenega ovitka za telefon. Izdelali smo tudi predlog izvedbe lesenega ovitka za telefon v kombinaciji s 3D tiskano gumo in pripravili pregled lastnosti ovitkov iz najpogostejših materialov na tržišču, v primerjavi z lesenim ovitkom za telefon. Izbiro lesenega ovitka za telefon bi svetovali vsem, ki jim je všeč izgled lesa. Mobile phone cases have a protective function, but to provide an attractive appearance is their equally important role. In order to determine what level of protection can provide the mobile phone cases, we determined the adhesion of the two-component polyurethane coating system, its resistance to scratching, cold liquids, resistance to impact. The tests were performed on the samples made of oak and beech wood, finished with a two-component waterborne polyurethane coating. The comparison of the results was carried out, and we estimated the values, that were believed to be sufficient when applied to wooden mobile phone cases. The results of our measurements were compared with the estimated required values. The beech samples exhibited somewhat better properties than the oak wood ones, most likely due to the anatomical characteristics of the oak wood, which was used for sample preparation (quite broad ring width). We believe that surface-treated beech and oak proved satisfactory properties, so the decision of buying a wooden cover for the phone can be made without any hesitations. We made a proposal for preparation of a wooden cover for the phone in combination with 3D printed rubber. An overview of properties of covers on the market, made of the most common materials was prepared, and comparison with wooden mobile phone cases was carried out. We recommend wooden mobile phone case to all who like the appearance of wood. lesen ovitek za telefon bukev hrast poliuretanski lak odpornostne lastnosti wooden mobile phone case beech oak polyurethane finish resistance properties true false false J. Plečnik Slovenski jezik Angleški jezik Delo diplomskega projekta/projektno delo 2024-06-20 12:34:26 2024-06-20 12:34:31 2024-07-04 03:45:14 0000-00-00 00:00:00 2016 0 Ljubljana 2016 Ljubljana VIII, 35 f. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 674.6:630*829.1 2557833 DIP_Plecnik_Jani_2016.pdf DIP_Plecnik_Jani_2016.pdf 1 2250695BC7BB6C404E320CF419A0D53E aca7c381edbb8d7f2e81947ca7c1f0da74706abe7664c5770b174adb8164293e aea9ad17-2ef0-11ef-a73e-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=186497 Biotehniška fakulteta 0 0 0