Abstract
The aim of the research project was to determine the capability of the protein-borate preservative to penetrate into the wood of Scots pine (Pinus sylvestris L.) and aspen poplar (Populus tremula L.). This capability was assessed by the preservative retention and the measurement of the penetration depth of the treatment solution. The scope of the performed experiments comprised two methods of treatment. The treatability of the two wood species with the examined formulations was compared with their treatability with the solution of the boric acid alone or with protein. The performed quantitative analysis of the boric acid and protein in individual wood layers allowed to characterise the distribution of the formulation ingredients on the cross-section of the treated elements. Significant differences were shown to occur in the degree of wood treatment with the formulation containing globular protein using the vacuum and vacuum-pressure methods. In addition, the impact of the protein presence on the way of boric acid penetration into wood was also determined.
Zusammenfassung
Ziel dieses Forschungsprojekts war es, die Eindringfähigkeit von Holzschutzmitteln auf Proteinborat-Basis in Kiefern- (Pinus sylvestris L.) und Aspenholz (Populus tremula L.) zu bestimmen. Diese wurde anhand der Schutzmittelaufnahme und der Messung der Eindringtiefe der Imprägnierlösung bewertet. Zwei verschiedene Tränkverfahren wurden untersucht. Die Tränkbarkeit der beiden Holzarten mit den untersuchten Rezepturen wurde mit der von reiner Borsäure und reiner Proteinlösung verglichen. Anhand der durchgeführten quantitativen Analyse von Borsäure und Protein in den einzelnen Holzschichten konnte die Verteilung der Rezepturbestandteile im Querschnitt der behandelten Proben bestimmt werden. Mittels Vakuum- und Vakuum-Druck-Verfahren ergaben sich deutliche Unterschiede im Umfang der Imprägnierung mit der Rezeptur, die globuläres Protein enthält. Darüber hinaus wurde bestimmt, wie Protein die Eindringung von Borsäure in Holz beeinflusst.
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Mazela, B., Domagalski, P., Mamonova, M. et al. Protein impact on the capability of the protein-borate preservative penetration and distribution into pine and aspen wood . Holz Roh Werkst 65, 137–144 (2007). https://doi.org/10.1007/s00107-006-0147-3
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DOI: https://doi.org/10.1007/s00107-006-0147-3