In the present project we will develop a new method for integrating carbonates (CaCO3, MgCO3 and SrCO3) and hydroxide (Al(OH)3) into the wood structure based on deep impregnation with soluble organic compounds in order to improve wood’s reaction to fire and durability. The principle is based on the decomposition of soluble organic compounds in the wood structure in the presence of water into carbonate/s or hydroxide with no harmful by-products. The proposed method signifies a simple, ecologically friendly and more effective mineralization of wood in a comparison to the traditional incorporation of carbonates. The main objective of the project is to obtain and deepen the knowledge about wood mineralization procedures. In particular we will evaluate the effect of proposed mineralization process on essential properties of wood, mainly its reaction to fire and determine the mechanisms of action of incorporated carbonates and hydroxides. A combination of vacuum and pressure will be used for wood impregnation. For selected wood species, i.e. spruce and beech, we will determine: (i) the optimal impregnation parameters for deep penetration and high retention of impregnation solution, (ii) optimal drying mode of impregnated wood samples and (iii) the optimal impregnation formulation. The evaluation of suitability of proposed impregnation formulation/s regarding efficiency and toxicity will be evaluated as well. For evaluation of the wood mineralization advanced research equipment will be used, such as TG/DTA coupled with GC-MS, SEM, FE-SEM, µCT, FTIR, XRD, gas sorption, cone calorimetry, etc.
Post-doc research project
Financing: Slovenian Research Agency, SRA
2018 0,5 FTE (B), 2019 1 FTE (B), 2020 0,5 FTE (B)
Link to SICRIS