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Vliv lepidla na vlastnosti kompozitních materiálů na bázi dřeva
 Martinková, Hana
This bachelor thesis deals with the comparison of the effect of adhesives, namely urea-formaldehyde adhesive with a high and low content of formaldehyde, on the physical and mechanical properties of three ply plywood beech boards. The thesis is focused on production and experimental measurement of samples of plywood and subsequent comparison of the measured results with each other and with the beech wood. In terms of measuring physical properties, it is specifically the density and moisture content. For mechanical tests and subsequent comparison, these are mainly three-point bending and shear bond strength.
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Vliv použité báze lepidla na kvalitu dýhovaných nábytkových dílců
 Kotálová, Veronika
Submitted diploma thesis deals with the influence of the adhesive base to quality of veneered furniture parts and follows the requirements of applicable standards for testing. The most frequently used materials in furniture were selected to verify the quality. As substrate samples were chosen 18 mm thick chipboards and as a decorative material were chosen beech veneers with a thickness of 0.6 mm. To test the suitability of adhesive compositions for veneering furniture components were selected adhesive mixtures based on condensation adhesives types (urea-formaldehyde and melamine-urea-formaldehyde adhesives) and dispersion (PVAc), and the resulting adhesive compositions were made from various types of adhesives in specified ratio (60 : 40, 75 : 25 and 85 : 15). The test samples were veneered with the same adhesive coating, which was 150 g/m2. Individual test samples were divided into groups according to the type of used adhesive, pressing temperature and pressing time. These test samples were tested after completion of the adhesive file, compression and conditioning. Quality of furniture parts was assessed in terms of physico-mechanical properties of the finished surface quality of furniture components after the completion of the surface treatment of the test samples with spraying by water-based and acrylate-polyurethane coating. The result of this thesis is the determination of depending of adhesives types to quality of veneered furniture parts. Another result is comparing of different finishes types to quality of veneered furniture parts.
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