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

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

Povzetek

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.

Ključne besede

zaščita lesa;baker;karboksilna kislina;

Podatki

Jezik:	Angleški jezik
Leto izida:	2005
Tipologija:	1.01 - Izvirni znanstveni članek
Organizacija:	IJS - Institut Jožef Stefan
UDK:	630*844
COBISS:	1349257
ISSN:	0043-7719
Št. ogledov:	887
Št. prenosov:	208
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Angleški jezik
Vrsta dela (COBISS):	Delo ni kategorizirano
Strani:	str. 685-693
Letnik:	ǂVol. ǂ39
Zvezek:	ǂno. ǂ8
Čas izdaje:	2005
ID:	52746