Poly(3-HydroxyButyrate-co-3-HydroxyValerate) based Inorganic Consolidate for Firwood Preservation

  • Mădălina Elena DAVID ICECHIM, Bucharest, Romania; Valahia University, Targoviste, Romania
  • Ramona Marina GRIGORESCU ICECHIM, Bucharest, Romania
  • Lorena IANCU ICECHIM, Bucharest, Romania
  • Elena Ramona ANDREI ICECHIM, Bucharest, Romania
  • Rodica-Mariana ION ICECHIM, Bucharest, Romania; Valahia University, Targoviste, Romania
Keywords: poly(3-hydroxybutyrate-co-3-hydroxyvalerate), zinc oxide, carbonated hydroxyapatite, preservation, firwood


The aim of this study was to address one of the major challenges of the conservation state of wooden artifacts or artworks namely, the preservation and restoration of wood surfaces. The factors involved in the deterioration of wood are mainly the external factors such as fire, low temperature and microbiological agents, which induce some degradation processes in wood, identified by discoloration, fragility and unsightly appearance. In this study, biodegradable materials based on poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBHV) and composites based on PHBHV and particles (zinc oxide (ZnO), carbonated hydroxyapatite (CHAp) and its metallic derivatives with silver (AgCHAp) and strontium (SrCHAp) were applied on firwood specimens in order to investigate their consolidation capacity. Colorimetric measurements have confirmed that the chosen treatments did not change the colour of the natural wood. The hardness test revealed that the consolidation system increases the mechanical properties of the samples. The used treatments confer a strong hydrophobic character which prevents exfoliation of the wood samples, as confirmed by the performed water absorption test.

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How to Cite
DAVID ME, GRIGORESCU RM, IANCU L, ANDREI ER, ION R-M. Poly(3-HydroxyButyrate-co-3-HydroxyValerate) based Inorganic Consolidate for Firwood Preservation. The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science [Internet]. 15Mar.2021 [cited 24Jul.2021];44(1):34-9. Available from: https://www.gup.ugal.ro/ugaljournals/index.php/mms/article/view/4320