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Interakcije borovih spojin in emulzij voskov z lesom in lesnimi glivami : doktorska disertacija = Interactions of boron compounds and wax emulsions with wax and wood decay fungi : doctoral dissertationLesar, BoštjanZa zaščito lesa se zelo pogosto uporabljajo pripravki na osnovi borovih spojin. Borovi pripravki so zelo učinkoviti insekticidi in fungicidi. Njihova slaba lastnost je, da se v vlažnem okolju iz lesa ... izpirajo. Vlažnost lesa in s tem tudi izpiranje borovih spojin smo skušali zmanjšati s hidrofobnimi sredstvi. Vzorce smo impregnirali z različnimi emulzijami voskov in jih izpirali v skladu s kontinuirnimi in nekontinuirnimi postopki izpiranja. Ti določajo vlažnost vzorcev med izpiranjem. Vlažnost je bila najpomembnejši dejavnik, ki je vplival na končni delež izpranega bora. Na vlažnost lesa med izpiranjem vplivata tudi delež in vrsta voska, s katerim je bil les impregniran. Emulzije voskov z manjšim deležem suhe snovi so med impregnacijo prodrle globlje v les in so bile bolj učinkovite pri zmanjševanju izpiranja kot emulzije z večjim deležem suhe snovi. S sorpcijskimi testi smo ugotovili, da večji ko je suhi navzem voska v lesu boljša je vodoodbojna učinkovitost ter počasnejše navlaževanje in nižja stopnja ravnovesne vlažnosti lesa, impregniranega z emulzijami voskov med uravnovešanjem bodisi v laboratoriju bodisi na prostem. V nadaljevanju smo določali odpornost lesa, zaščitenega z borovimi spojinami in emulzijami voskov, proti lesnim glivam. Z laboratorijskimi in terenskim testom smo ugotovili, da emulzije voskov upočasnijo razgradnjo lesa z glivami razkrojevalkami, vendar je ne preprečijo. Po drugi strani pa voski niso zaščitili lesa pred delovanjem gliv modrivk in plesni. Ocenjujemo, da bi vodne emulzije voskov lahko uporabljali za zaščito lesa, vendar ne v 4. in 5. razredu izpostavitve.Type of material - dissertation ; adult, seriousPublication and manufacture - Ljubljana : [B. Lesar], 2011Language - slovenian, englishCOBISS.SI-ID - 1908361
Author
Lesar, Boštjan
Other authors
Humar, Miha |
Petrič, Marko, 1962-
Topics
Les |
Zaščita |
Borove spojine |
Disertacije |
lesarstvo |
zaščita lesa |
fungicidi |
biocidi |
voski |
interakcije |
izpiranje |
lesne glive
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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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Lesar, Boštjan | 28503 |
Humar, Miha | 19106 |
Petrič, Marko, 1962- | 00395 |
Source: Personal bibliographies
and: SICRIS
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