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Termite resistance of beech wood treated with zinc oxide and zinc borate nanocompounds

AuthorsLykidis, Charalampos; Troya, Teresa de; Conde, María; Galván, Jorge; Mantanis, George
KeywordsWood resistance
Nano-zinc oxide
Nano-zinc borate
Issue Date2018
PublisherTaylor & Francis
CitationWood Material Science and Engineering 13(1): 45-49 (2018)
AbstractThe field of wood protection is currently changing due to the restrictions imposed by the Biocidal Products Regulation. The need for development of new wood protection technologies is therefore growing. In this work, the resistance of European beech (Fagus sylvatica L.) wood impregnated with nano-dispersions of zinc oxide (nano-ZnO) and zinc borate (nano-ZnB) against the termite Reticulitermes grassei Clement was investigated. Three different concentrations (0.5%, 1%, 2%) of the nanocompounds were tested. The effects of water leaching were also investigated. A severe effect in terms of termite workers mortality was induced by both dispersions, even at the lowest concentration. In terms of termite feeding, nano-ZnO dispersions appeared to be more efficient than nano-ZnB as they induced significant improvement at concentrations as low as 0.5%. Nano-ZnB was applied at 1% or higher concentrations in order to impart similar changes. Nano-ZnB dispersions were efficient in terms of termite resistance for a concentration at least 1%. Further increasing concentration to 2% resulted in a respective increase of wood efficacy against termites. For both tested nanocompounds, water leaching did not result in any significant increase of termite feeding.
DescriptionPart of this work was presented in the 47th IRG Annual Conference held in Lisbon, Portugal on 15–19 May 2016 (IRG/WP 16-30691).
Publisher version (URL)https://doi.org/10.1080/17480272.2016.1257651
Appears in Collections:(IETCC) Artículos
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