Influence of carboxylic acids on fixation of copper in wood impregnated with copper amine based preservatives

Miha Humar (Author), Polona Kalan (Author), Franc Pohleven (Author), Marjeta Šentjurc (Author)

Abstract

The importance of copper/amine based preservatives is increasing. Leaching of copper from wood preserved with these solutions is still higher than leaching from wood impregnated with copper chromium ones. In order to decrease leaching, different carboxylic acids (octanoic, 2-ethylhexanoic, decanoic) were added to copper/amine/boron aqueous solutions. An experiment of leaching of copper from Norway spruce was performed according to the modified standard procedure (EN 1250). Results confirmed that carboxylic acids significantly improve copper fixation. The best fixation was determined in specimens impregnated with the preservative solutions consisting of copper, ethanolamine, boric acid and octanoic acid. From such wood, only 1.6% of copper was leached.

Keywords

zaščita lesa;baker;karboksilna kislina;

Data

Language:	English
Year of publishing:	2005
Typology:	1.01 - Original Scientific Article
Organization:	IJS - Jožef Stefan Institute
UDC:	630*844
COBISS:	1349257
ISSN:	0043-7719
Views:	887
Downloads:	208
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Type (COBISS):	Not categorized
Pages:	str. 685-693
Volume:	ǂVol. ǂ39
Issue:	ǂno. ǂ8
Chronology:	2005
ID:	52746