20.500.12556/RUL-82 Vpliv alkilamonijevega klorida na vezavo in učinkovitost bakrovih pripravkov diplomsko delo (visokošolski strokovni študij) Influence of alkylammonium chloride on fixation and efficiency of copper based preservatives graduation thesis (higher professional studies) Za zaščito lesa pogosto uporabljamo zaščitne pripravke na osnovi bakrovih spojin. Bakrovi pripravki so zelo učinkoviti fungicidi. Vendar se Cu iz lesa izpira. V zadnjem času se pojavljajo tolerantni sevi gliv, na katere Cu ne deluje več fungicidno. Zato smo skušali ugotoviti, kako na izpiranje Cu in na fungicidne lastnosti vplivajo kvartarne amonijeve spojine. S pripravki na osnovi bakra, etanolamina, kvartarnih amonijevih spojin, oktanojske kisline in biocida topbor, smo vakuumsko impregnirali vzorce iz smrekovega lesa. Po kondicioniranju in izpiranju smo v izpirku določili delež bakra z atomsko absorpcijsko spektroskopijo. Ugotovili smo, da se je ob prisotnosti amina močno zmanjšalo izpiranje Cu. Fungicidne lastnosti impregniranih vzorcev smo ugotavljali z mini blok metodo. Izprane in neizprane vzorce smo izpostavili delovanju gliv navadne tramovke (Gloeophyllum trabeum), bele hišne gobe (Antrodia vaillantii) in pisane ploskocevke (Trametes versicolor). Ugotovili smo, da izpiranje vzorcev ne poslabša fungicidnih lastnosti zaščitnih pripravkov. Protective preparations on copper based compounds are often use for protection of wood. Copper based preparations are very efficient fungicides, however, Cu from wood leaches out. Recently, tolerant strains of fungi have appeared, against which copper based preservatives are not efficient any more. That is why we tried to find out the influence of quaternary ammonium compounds on leaching of copper based fungicides. Samples from Norway spruce wood were vacuum impregnated with preparations based on copper, ethanolamine, quaternary ammonium compound, octanoic acid and biocide topbor. After drying and leaching we determined concentration of copper in the leachate by atomic absorption spectroscopy. It was found out, that leaching of copper was strongly reduced by the presence of amines. Fungicidal properties of the impregnated samples were determined by the mini block test method. The leached and non-leached samples were exposed to Gloeophyllum trabeum, Antrodia vaillantii and Trametes versicolor. It was found out that leaching did not decrease resistance against wood decay fungi. zaščita lesa bakrovi zaščitni pripravki izpiranje fungicidne lastnosti wood preservation copper based preservatives leaching fungicidal properties true false false [M. Gorše] Slovenski jezik Angleški jezik Diplomsko delo 2014-07-11 12:24:04 2014-07-11 12:24:04 2022-07-11 10:02:14 0000-00-00 00:00:00 2005 0 Ljubljana 0 X, 57 f. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 630*841.1 1296777 vs_gorse_mihael.pdf vs_gorse_mihael.pdf 1 6E2BD057F396496925EC1AD18F5E5F51 5d6f90e9d1a1f2be67a047e165278cac8b06feaa9ee7e4ad1f78ea2642d7d13c 5420f9e4-a1b9-11eb-a523-00155dcfd717 20.500.12556/rul/400aac69-273e-488d-9cd8-5c6e6631a463 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=132169 Biotehniška fakulteta 0 0 0