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Sorpcijske in nabrekovalne značilnosti ivernih plošč : diplomsko delo (visokošolski strokovni študij) = Sorption and swelling characteristics of particle boards : graduation thesis (higher professional studies)
Soršak, Jaka
Na ravnovesno vlažnost plošč vpliva več dejavnikov, med njimi tudi debelina in tip plošče oziroma vrsta lepila. Pri poizkusu smo imeli 4 različne tipe ploščč iz njih smo izžagali 24 vzorčkov dimenzij ...50 mm X 50 mm. Te smo najprej navlaževali, in sicer v klimah z relativno zrčno vlažnostjo 34 %, 65 %, 75 %, 90 % in 98 % do konstantne mase. Zatem smo postopek obrnili in jih pričeli sušiti. Imeli smo iste klime kot pri navlaževanju. Na koncu smo jih dali še v sušilnik s 103 +- 2 °C. Opazovali smo spremembe mase in nabreka. Najbolje so se obnesli vzorčki P5, zlepljeni z melamin-formaldehidnim lepilom. Tudi vzorčki OSB3, zlepljeni z izocianatnim lepilom, so se dobro obnesli do relativne zračne vlažnosti 90 %, nato pa se je nabrek močno povečal. Pri debelejših in tanjših vzorčkih P2, ki so bili zlepljeni z urea-formaldehidnim lepilom, so se bolje obnesli tanjši vzorčki.
Type of material - undergraduate thesis
; adult, serious
Publication and manufacture - Ljubljana : [J. Soršak], 2007
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