20.500.12556/RUL-256 Optimizacija izdelave poliuretanske pene z uporabo utekočinjenega lesa diplomsko delo Optimization of polyurethane foam production using liquefied wood visokošolski strokovni študij Z uporabo utekočinjenega lesa smo optimizirali izdelavo poliuretanskih pen. Na osnovi že znanih postopkov smo utekočinili les in iz njega naredili linearni poliester. Zato smo uporabili žagovino topolovine, dietilenglikol in žveplovo(VI)kislino. Zaestrenje je potekalo z uporabo anhidrida ftalne in adipinske kisline. Izdelali smo devet različnih pen in ugotovili, da so bile gostote vseh pen približno enake, in da so vse pene zelo absorbirale vodo. Take pene so primerne za uporabo v cvetličarstvu. Using liquefied wood the production of polyurethane foam was optimised. Wood was liquefied on the basis of already known methods, then linear polyester was produced, and later used to make polyurethane foams. To produce liquefied wood poplar sawdust, dietilenglycol and sulphur(VI)acid were used. Anhydride of phtalic and adipic acid were used for etherification. Nine different foams were produced. It was found out that the density of all the foams was similar, and that all the foams absorbed water very well. The foams are suitable for use in florist shops. utekočinjanje lesa topol sinteza poliestra poliuretanska pena liquefied wood poplar polyester synthesis polyurethane foams true false false [D. Mihalić] Slovenski jezik Angleški jezik Diplomsko delo 2014-07-11 12:24:48 2014-07-11 12:24:48 2022-07-11 10:14:15 0000-00-00 00:00:00 2007 0 Ljubljana 0 VIII, 49 f. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 678.664 1601417 vs_mihalic_davor.pdf vs_mihalic_davor.pdf 1 7B35E56B8A1D71FE92D7F16F660D2340 ea3f46e578c2783513de431d16d363cb2ea193c628d395aa0a7f3b4ac36ffa4c 5ab4afc9-a1b9-11eb-a523-00155dcfd717 20.500.12556/rul/86a14541-4015-48bc-b302-87a7f65aab4f https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=132270 Biotehniška fakulteta 0 0 0