The 7th International Science Conference on “Chip and Chipless Woodworking Processes” was organised on 9-11 September 2010 in Terchova, Slovakia, by the Department of Woodworking at the Faculty of Wood Sciences and Technology of the Technical University in Zvolen. The aim of the Conference was to provide the specialists in science, research and pedagogy with a forum to present and discuss new knowledge and results in the field of chip and chipless woodworking processes.
The method of accelerated testing of composite materials based on wood durability was compared data from different authors and justified further ways of development of this technique.
Werkstoffe auf Vollholzbasis gewinnen zunehmend an Bedeutung. Ihre Produktion wurde durch die Entwicklung synthetischer Klebstoffe mit hoher Zuverlässigkeit möglich. Die Werkstoffe ermöglichen eine hohe Vorfertigung. In den letzten Jahren erfolgte eine deutliche Zunahme des Einsatzes von Holzwerkstoffen, insbesondere Massivholzplatten im mehrgeschossigen Wohnungsbau aber auch für Hallen, Schulen oder grosse öffentliche Bauten. Im Beitrag werden wichtige Holzwerkstoffe auf Basis von Vollholz und deren Eigenschaften vorgestellt. Ergänzend werden ausgewählte Eigenschaften klassischer Partikelwerkstoffe vergleichend dargestellt.
This paper presents the results of investigations on the emission of volatile organic compounds (VOC) from oak wood surfaces finished with acrylic waterborne lacquers. The lacquers selected for the experiments were characterised by a different content of solids, fluctuating between 32 and 38%. The volatile organic compounds were analysed using a gas chromatography technique combined with mass spectrometry and thermal desorption (GC/MS/TD). Tenax TA was employed as an adsorption medium. The obtained results indicate that volatile organic compound emissions from the experimental waterborne lacquers varied widely from 388 to 1794 μg/m3. The most important constituents of emissions included compounds that belonged mainly to glycol ethers as well as aliphatic and aromatic hydrocarbons.