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Uporaba FT-IR spektroskopije za karakterizacijo ivernih plošč : diplomsko delo : univerzitetni študij = Usage of FT-IR spectroscopy for particleboards characterization : graduation thesis : university studiesDolinšek, IvanNamen naloge je ugotoviti kemijsko zgradbo ivernih plošč s pomočjo FT-IR spektroskopije. Analiza temelji na presevanju vzorcev s svetlobo v valovnem številu med 400 cm-1 in 4000 cm-1, pri čemer ... merimo prepustnost oz. količino absorbirane svetlobe v odvisnosti od valovne dolžine. Meritve spektrov smo opravili z DRIFT (Diffuse Reflectance Infrared Fourier Transform) tehniko, katera je najpogostejša za analiziranje prašnih delcev (v našem primeru zmletega iverja). Uporabili smo iverne plošče proizvajalcev iz Rusije, Slovenije in Italije. Ena iverna plošča je bila zlepljena z melamin-formaldehidnim, ostale pa z urea-formaldehidnim lepilom. V dobljenem spektru med 400 cm-1 in 4000 cm-1 smo se osredotočili na valovni pas od 650 cm-1 do 1750 cm-1, koder se nahajajo funkcionalne skupine celuloze, hemiceluloze in lignina v lesu. Ugotovili smo, da lahko z FT-IR metodo določimo kemijsko zgradbo iverne plošče oz. funkcionalne skupine celuloze, hemiceluloze in lignina. S primerjavo FT-IR spektrov ivernih plošč smo ugotovili, da na spremembe deleža celuloze, hemiceluloze in lignina vpliva različna uporaba lepila (MF, UF), proces izdelave ivernih plošč, drevesna vrsta, ter ionizirajoče sevanje.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [I. Dolinšek], 2007Language - slovenianCOBISS.SI-ID - 1600905
Author
Dolinšek, Ivan
Other authors
Medved, Sergej |
Tišler, Vesna, 1947-
Topics
iverne plošče |
kemijska zgradba |
FT-IR spektroskopija |
particleboard |
chemical structure |
FT-IR spectroscopy |
FT-IR spectroscopy
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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Year | Impact factor | Edition | Category | Classification | ||||
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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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Dolinšek, Ivan | |
Medved, Sergej | 15410 |
Tišler, Vesna, 1947- | 02037 |
Source: Personal bibliographies
and: SICRIS
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