20.500.12556/RUL-138556 Mikroskopska analiza lesa impregniranega z vodno emulzijo montana voska Microscopic analysis of wood impregnated with aqueous montan wax emulsion V raziskavi smo poučevali vpliv postopka impregnacije ter vrste emulzije montana voska na retencijo, globino penetracije in porazdelitev v lesu smreke (Picea abies). Uporabili smo tri postopke impregnacije: vakuumsko-tlačni, vakuumski in premazovanje. Navzem smo določili gravimetrično. Po impregnaciji smo iz vzorcev pripravili anatomske preparate, na katerih smo pod mikroskopom,preučevali globino prodora in porazdelitev montana voska v vzorcih. Ugotovili smo, da je največ voska prodrlo v aksialni smeri, medtem koje vosek v prečni smeri prodrl le v prve poškodovane celice na površini. Z vakuumsko tlačnim postopkom impregnacije smo v aksialni smeri dosegli globlji prodor voska, ki je presegel dolžino traheid. Delež voska v emulziji ni znatno vplival na globino prodora, medtem ko je vplival na količino oziroma zapolnjenost celic z voskom. Influence of impregnation procedure, type of montan wax emulsion on retention,penetration and distribution in Norway spruce (Picea abies) wood was investigated. Three different procedures were applied: vacuum-pressure, vacuum and brushing. After wood impregnation microscopic sections were prepared for determination of penetration and distribution of montan wax in wood under the microscope. The results showed that the greatest part of the wax emulsion penetrated in wood in axial direction, while in radial or tangential direction the wax emulsion penetrated trough the upper layer of cells only. Using the vacuum pressure technique, the wax penetrated deeper and the depth of penetration exceeded the average tracheid length. Concentration of wax emulsions did not influence the depth of penetration, butit has a considerable influence on filling of cell lumina with wax. globina penetracije montana vosek smreka zaščita lesa depth of penetration montan wax Norway spruce (Picea abies) wood preservation true false true Slovenski jezik Angleški jezik Članek v reviji 2022-07-27 13:44:12 2022-07-27 13:44:18 2022-09-15 04:16:52 0000-00-00 00:00:00 2008 0 0 Str. 320-326 št. 9 Letn. 60 2008 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2008-01-01 630*841 0024-1067 1675401 RAZ_Lesar_Bostjan_2008.pdf RAZ_Lesar_Bostjan_2008.pdf 1 A6A9002B03C2C7959C5462F54BE092FE 0de22cae990ef2fbf4a3a40338f6674a9e92d8ad77b764f612f427b41e650466 616f0ad5-0da1-11ed-8aca-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=158922 Biotehniška fakulteta Les 0 0 0