20.500.12556/RUL-117578 Primerjava obdelave mizne plošče iz masivne hrastovine z lakom na osnovi organskih topil in z vodnima lakoma diplomsko delo - visokošolski strokovni študij Comparison of treatment of a table top made of solid oak wood with a solvent borne varnish and with two water borne varnishes Ugotavljali smo, če je v manjšem lesarskem obratu možno zamenjati površinski sistem na osnovi organskih topil s površinskim sistemom na vodni osnovi, ter s tem zmanjšati vnos hlapnih organskih spojin v okolje. Testirali smo poliuretanski (PU) lak ter enokomponentni (V1) in dvokomponentni (V2) vodni lak. Za zamenjavo PU laka je najpomembneje, da zagotavlja lak, s katerim ga bomo zamenjali, primerljive lastnosti obdelanih površin. Vse sisteme smo nanesli z navadnim zračnim razprševanjem na masivne širinsko lepljene hrastove plošče. Vsi 3 površinski premazi so bili zračno sušeni. Ugotovili smo, da bi PU sistem lahko zamenjali z obema vodnima sistemoma, vendar so bili pri laku z oznako V2 rezultati boljši kot pri drugem laku (V1). Izračun zmanjšanja hlapnih organskih spojin, ob predpostavljeni proizvodnji, pokaže, da bi z zamenjavo PU sistema z vodnim sistemom zmanjšali emisije hlapnih organskih spojin za slabi 2 toni letno. The aim of the research was to establish the possibility for a small joinery workshop to replace wood coating systems on the basis of organic solvents with waterborne varnishes to reduce emissions of volatile organic compounds into the environment. We compared a solvent borne polyurethane (PU) wood coating with 1- and 2- component waterborne coatings. To replace a solvent borne PU wood coating its most important that the alternative waterborne wood finishes assure comparable properties on the treated surfaces. All tested coating systems were applied by a conventional air spraying process on single-layer solid oak wood panels. All 3 surface coatings were air dried. It was found out, that the solvent borne PU coating system could be replaced with both tested waterborne systems. However, the results of the waterborne coating with a V2 label were better than those of the V1 coating. Calculation of the reduction of volatile organic compound emissions for the assumed production shows that the replacement of the solvent borne PU system with the water borne coating systems could reduce emissions of volatile organic compounds for almost 2 tons per year. premazi za les vodni sistemi odpornostne lastnosti uredba HOS wood coatings water borne systems resistance properties VOC Decree true false false [G. Žabčić] Slovenski jezik Angleški jezik Diplomsko delo 2020-07-16 13:22:03 2020-07-16 13:22:09 2022-08-29 03:44:15 0000-00-00 00:00:00 2013 0 Ljubljana 2013 Ljubljana IX, 62 f. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 630*829.17 2145673 UNI_Zabcic_Gregor_2013.pdf UNI_Zabcic_Gregor_2013.pdf 1 ABFF2E664DB0285AFC43D6059EAB11F8 2eb2ec1d6eb1bb2b6f7ac31c099e0b80a6c25bc6fecdbebc114f11e4eb69b425 3658ea8b-a1b9-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=131459 Biotehniška fakulteta 0 0 0