engleski

Optimisation of Modification of Beech Wood by Citric Acid

Different concentration of chemicals in solution, temperature and curing period were used for common beech wood modification with Citric acid (CA). In distilled water (at 60 °C) extracted specimens were impregnated with citric acid (CA) water solutions of different concentrations with phosphate catalyst. After impregnation, specimens were air-dried and then cured at elevated temperatures using different regimes. The effects of different modification regimes were assessed through the values of weight percentage gain (WPG), anti swelling efficiency (ASE), mass loss caused by leaching (MLL) and leachability coefficient of gained mass (LCM). Optimal combination of modification parameters was chosen for each of mentioned properties and then only one optimal combination of modification parameters was selected. Compression strength parallel to the grain and biological durability of beech wood after modification by optimal regime were researched and data presented.

Anti Swelling Efficiency (ASE); Biological durability; Compression strength (CS); Leachability Coefficient of gained Mass (LCM); Mass Loss caused by Leaching (MLL); Weight Percentage Gain (WPG)

Organisers: University of Ljubljana, Biotechnical Faculty (Department of Wood Science and Technology) and COST (FP0904, FP1006) Print Edition: Book of Abstracts (ISBN: 978-961-6144-34-6)