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Izpiranje borovih učinkovin iz impregniranega lesa z različnimi pripravki na osnovi polietilenskih voskov in borove kisline : diplomsko delo - univerzitetni študij = Leaching boric ingredients from wood impregnated with various preparations based on polyethylene wax and boric acid : graduation thesis - university studiesKošir, Marko, 1983-Borove spojine so že v majhnih koncentracijah učinkovit biocid, ki ne škoduje ljudem in okolju. Žal pa se slabo veže v les in se, posledično, iz lesa izpira. Da bi zmanjšali izpiranje bora iz lesa, ... smo borove pripravke kombinirali z različnimi koncentracijami 2 različic polietilenskih voskov (We1in We6) proizvajalca BASF. Pripravili smo 10 različnih pripravkov z 0,1 % ali 0,5 % koncentracijo bora in 25 % ter 50 % koncentracijo emulzij polietilenskih voskov. Smrekove vzorce smo impregnirali s prej naštetimi raztopinami po vakuumsko-tlačnem postopku polnih celic. Po impregnaciji smo vzorce sušili pri standardnih pogojih; del vzorcev smo po impregnaciji sušili pri temperaturi višji od tališča voskov (135 °C). Izpiranje impregniranega lesa je potekalo v skladu s 3 standardi (SIST EN 84, SIST ENV 1250-2, prCEN/TS 15119-1). Ugotovili smo, da dodatek emulzij voskov zmanjšuje mokri navzem sredstva med impregnacijo. Na delež izpranega bora v največji meri vpliva uporabljena metoda izpiranja. Pri izpiranju po standardu prCEN/TS 15119-1 se je v povprečju izpralo najmanj borovih učinkovin, medtem ko se je pri izpiranju po standardu SIST EN 84 iz lesa izpral ves navzet bor, ne glede na vrsto pripravka. Pri izpiranju impregniranega lesa po standardu SIST ENV 1250-2 se pojavijo razlike med impregniranimi vzorci in vzorci, ki so bili dodatno izpostavljeni sušenju pri 135 °C.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [M. Košir], 2011Language - slovenianCOBISS.SI-ID - 1936777
Author
Košir, Marko, 1983-
Other authors
Humar, Miha |
Lesar, Boštjan |
Petrič, Marko, 1962-
Topics
les |
vezava |
zaščita |
borova kislina |
polietilenski vosek |
wood |
fixation |
protection |
boric acid |
polyethylene wax
Library/institution |
City | Acronym | For loan | Other holdings |
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BF, Department of Wood Science and Technology, Lj. | Ljubljana | BFLES |
reading room 1 cop.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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DRS, in which the journal is indexed
Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Košir, Marko, 1983- | |
Humar, Miha | 19106 |
Lesar, Boštjan | 28503 |
Petrič, Marko, 1962- | 00395 |
Source: Personal bibliographies
and: SICRIS
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