WOOD RESEARCH, cilt.68, sa.2, ss.268-278, 2023 (SCI-Expanded)
In this study, the Scots pine wood samples were impregnated (single treatment) with boric
acid combined with two types of water-based acrylic resin (pure acrylic and semi-translucent
acrylic emulsion) to limit the boron leaching and improve the decay resistance. The results
showed dimensional stability in anti-swelling efficiency and water absorption improved
in wood specimens treated with boric acid and acrylic types. While the leachability was over
90% for only 3% boric acid-impregnated wood (control), it was calculated at 36% for acrylic
emulsions-impregnated wood. Although there were no weight losses for the unleached woods,
it was up to 9% for leached woods impregnated with acrylic resin and emulsion. The 25%
acrylic emulsion had no weight losses after the leaching test for Coniophora puteana and
Trametes versicolor. The boric acid combined with acrylic resin can improve the leaching
resistance with the synergic effect, enhancing resistance against biological threats.