Results of an experimental research about the effect of different titanate nanoparticles on the wood- water relations are shown in this paper. Different wood species were used for the experiments. Treatment of wood with the nanoparticles was performed by impregnation method. Different concentrations of nanoparticles were used. Investigated properties after treatment were shrinking/swelling coefficient, equilibrium moisture content (EMC), water uptake and moisture permeability. Beside these, colour change (CIELab) and mechanical properties (compression strength and surface hardness) were investigated as well. Overall, we can state according to our investigations so far, that the impregnation with nanoparticles was successful. Shrinking and swelling properties decreased remarkably in case of all the four investigated wood species. As a side effect of the treatments, a slight colour change could be observed as well. No effect on the mechanical properties could be found as a result of the treatment.
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