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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Hustotní profil a jeho vliv na vlastnosti třískových desek
 Matyáš, Michal
The goal of this thesis is to determine properties of manufactured particleboards with different percent content of recycled wood. The objective was to determine density values, thickness swelling, moisture content, internal bonding, bending properties and vertical density profile of particleboards. The research question was to report the effect of different percent content of recycled wood on final properties of particleboard. The own method was established and various particleboards produced. The properties of materials were tested according to EN standards and by descriptive statistics, analysis of variance (ANOVA) and linear regression evaluated. In summary in research it was observed that percent content of recycled wood has little impact on final properties of particleboard, although there were several factors which may have affected these results. These factors are described in this thesis.
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Možnosti použití dřevotřískové desky jako jádra sendvičového kompozitu
 Matyáš, Michal
The goal of bachelor thesis is to determine properties of manufactured wood -- based composite panels with particleboard core a different facing overlays. The objective was to determine panel density, thickness swelling, internal bonding and bending properties. The thesis also include general review of the sandwich composite panels manufacturing. The research question was to report effect of different facing material on bending properties considering two level of densities. The own method was established and various sandwich panels produced. The properties of materials were tested according to EN standards and by descriptive statistics and analysis of variance (ANOVA) evaluated. In summary in research were observed that covering material significantly improved bending properties of particleboard, however these properties are also greatly affected by core density.
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