BF, Dept. of Wood Technology, Lj. (BFLES)
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Impregnacija lesa z utekočinjenim lesom : diplomsko delo (univerzitetni študij) = Impregnation of wood with liquefied wood : graduation thesis (university studies)Koprivnikar, Jože, 1981-Obravnavali smo možnost uporabe modificiranega utekočinjenega topolovega lesa za globinsko zaščito masivnega topolovega lesa. Utekočinjen les smo modificirali z zmesmi z različnimi koncentracijami ... metilirane melaminske smole Melapret NF70/M (MF). Določili smo optimalno temperaturo utrjevanja. Utrjeni zmesi smo izmerili trdnost, prožnost, ter odpornostne lastnosti na hladne tekočine. Dve zmesi z različnima koncentracijama MF smo uporabili za impregnacijo masivnega lesa topola po Bethellovem postopku. Po impregnaciji smo izmerili moker navzem, suh navzem, delež pridobljene mase (weight percentage gain, WPG), učinkovitost proti nabreku (anti-swelling efficiency, ASE) ter izpirljivost. Vzorci, impregnirani s sredstvom, ki je vsebovalo višjo koncentracijo MF, so izkazovali nižjo izpirljivost kot tisti z nižjo. ASE je bil pri obeh vzorcih približno enak in je znašal malenkost manj kot ASE nezaščitenega vzorca. Visok ASE zaščitenih vzorcev je pokazal neučinkovitost sredstva za namen preprečevanja absorpcije vode v lesno strukturo Utekočinjen les v povezavi z melaminskimi smolami je nov proizvod, ki ga v nam dosegljivi literaturi nismo zasledili. Njegova uporaba v namen zasičevanja lesne strukture se v raziskavi ni dobro izkazala, vendar ima snov potencial pri razvoju novih plastičnih in lesnih materialov. Za boljše razumevanje te snovi bo potrebna se vrsta raziskav, tako kemijskih, bioloških in fizikalnih.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [J. Koprivnikar], 2007Language - slovenianCOBISS.SI-ID - 1516425
Author
Koprivnikar, Jože, 1981-
Other authors
Petrič, Marko, 1962- |
Tišler, Vesna, 1947-
Topics
utekočinjen les |
melaminska smola |
impregnacija |
liquefied wood |
melamine resin |
impregnation
Call number – location, accession no. ... |
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Knjižnica BF za lesarstvo dn 0000000840 IN: 020070145 Knjižnica BF za lesarstvo dn 840 IN: 020070145 |
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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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Koprivnikar, Jože, 1981- | |
Petrič, Marko, 1962- | 00395 |
Tišler, Vesna, 1947- | 02037 |
Source: Personal bibliographies
and: SICRIS
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