Development of the “bog oak” technology: modification of wood in environmentally friendly way
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The study was based on sustainable wood eco-treatment in order to improve its properties and resistance without harming the environment. The aim of this study was to determinate the influence of different thermal treatments – additives Fe2O3 or FeCl3 with and without commercial tannins - on Pinus Sylvestris L., Picea Abies (L.) H. Karst., Pseudotsuga menziesii, Juglans Regia L. and Acer platanoides L. wood mass loss and wood density. The total phenolic compounds in the wood of different species after thermal processing were also analysed. This study has shown that wood reaction to different treatments after thermal processing were much dependent on tree species, therefore, different treatments gave quite contradictory responses. More similar response was found for two conifers – Pinus sylvestris and Picea abies – in case of mass loss and wood density. The treatments with additives Fe2O3 or FeCl3 with and without commercial tannins decreased the content of total phenolic compounds compared with the control treatment in the wood of Pinus sylvestris, Picea Abies and Acer platanoides. While the content of total phenolic compounds in Juglans Regia wood increased when pure FeCl3 and FeCl3 together with tannins were added, and in Pseudotsuga menziesii wood when FeCl3 together with tannins were added.
Keywords: iron oxides, iron salt, commercial tannins, phenolic compounds, mass loss, wood density
ID: 3486869