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Analiza termično modificiranega lesa z infrardečo spektroskopijo in termično analizo : diplomsko delo (univerzitetni študij) = Analysis of thermal modified wood with infrared spectroscopy and thermal analysis : graduation thesis (university studies)
Lesar, Boštjan
Vzorce smreke in jelke smo modificirali v vakuumu pri temeperaturah od 170 do 215 °C. Modificiranim vzorcem smo določili izgubo mase, ki je posledica termične obdelave. Posneli smo infrardeče spektre ...termično modificiranih in kontrolnih vzorcev v transmisijski tehniki. V dobljenih spektrih smo izmerili površine posameznih trakov ter jih primerjali z referenčnima trakovoma pri 2900 in 1510 cm(na-1), tako da smo dobili relativne površine posameznih trakov, ki smo jih primerjali z izgubo mase pri termični modifikaciji. Ugotovili smo, da obstaja linearna povezava pri trakovih: 1636, 1605, 1035 in 897 cm(na-1). Termično analizo smo izvajali na kontrolnih vzorcih in vzorcih smreke, modificiranih pri temperaturah 190 in 210 °C. Izgubo mase, ki smo jo zabeležili pri termični analizi, smo primerjali s tisto pri termični modifikaciji in ugotovili, da sta v linearni odvisnosti. Z naraščanjem izgube mase vzorcev, kot posledico termične modifikacije, se zmanjšuje izguba mase pri termični analizi.
Type of material - undergraduate thesis
; adult, serious
Publication and manufacture - Ljubljana : [B. Lesar], 2005
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