Abstract
We evaluated fungal decay and mold resistance, leaching, and water absorption of nano-compounds and Paraloid B72® (PB72) in treated wood specimens to develop new methods of consolidation by combining nano-particles and consolidants. Scots pine wood specimens were treated with dispersions of nano-CuO, nano-ZnO, nano-B2O3, nano-TiO2, and nano-CeO2. PB72 treatments of nano-particle-treated wood specimens were then carried out by either vacuum or immersion for 24 h. Previously, decayed wood specimens were also consolidated with the nano-compounds and PB72. PB72 treatments reduced element release from treated wood specimens. Nearly all nano-compounds + PB72 treatments increased the biological performance of treated wood specimens against decay fungi tested. PB72-only treated wood specimens had the highest weight losses in decay tests. No improvements were obtained in mold resistance tests when the nano-compounds and PB72 were combined. In nano-compound-only treatments, unleached specimens showed slightly lower water absorption values compared to untreated control specimens. Incorporation of PB72 into nano-compound-treated wood specimens resulted in considerably lower water absorption and volumetric swell. In previously decayed specimens treated with the nano-compounds and PB72 solution, water absorption after 2-h immersion declined compared to control specimens.
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This study was financially supported by the Coordination Unit for Scientific Research of Istanbul University, Turkey (Project No: 45503).
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Project funding: This study was financially supported by the Coordination Unit for Scientific Research of Istanbul University, Turkey (Project No: 45503).
The online version is available at http://www.springerlink.com.
Corresponding editor: Yu Lei.
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Muhcu, D., Terzi, E., Kartal, S.N. et al. Biological performance, water absorption, and swelling of wood treated with nano-particles combined with the application of Paraloid B72® . J. For. Res. 28, 381–394 (2017). https://doi.org/10.1007/s11676-016-0287-1
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DOI: https://doi.org/10.1007/s11676-016-0287-1