Influence of thermal modification and impregnation with biocides on physical properties of Italian stone pine wood (Pinus pinea L.)

Marco De Angelis (Author), Miha Humar (Author), Davor Kržišnik (Author), Swati Tamantini (Author), Manuela Romagnoli (Author)

Abstract

The sudden availability of Italian stone pine (Pinus pinea L.) wood due to the infestation of pathogenic fungi and insects highlighted the need to promote its use as a short supply chain resource in Italy and other Mediterranean countries. However, the durability of stone pine sapwood must be enhanced if outdoor use is to be considered. The impregnability of stone pine wood was studied following the standard EN 351-1:2008, using immersion, vacuum, and high-pressure methods with natural waxes and organic solvent-based and copper-amino-based preservative solutions. The efficacy of the impregnation was determined by calculating the kilos of preservative absorbed per cubic meter of wood and by measuring the penetration depth of the preservative. Thermal modifications were carried out using five different maximum temperatures, and their efficacy was determined by measuring the mass loss and color change. Subsequent to thermal treatments, the wood was exposed to a water-vapor-saturated atmosphere, and the increase in mass was calculated for different periods. Stone pine and Scots pine sapwoods showed similar response to the treatments with the exception of soaking impregnation methods where stone pine showed higher uptake, in particular when Silvanolin was used. Our investigation shows that stone pine can be a suitable short supply chain resource in Italy that, when impregnated, could be tested for outdoor use, exactly as is the case with Scots pine.

Keywords

Pinus pinea wood;thermal treatments;impregnation;durability;short supply chain;

Data

Language:	English
Year of publishing:	2022
Typology:	1.01 - Original Scientific Article
Organization:	UL BF - Biotechnical Faculty
UDC:	630*8
COBISS:	104385539
ISSN:	2076-3417
Views:	89
Downloads:	34
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	Slovenian
Secondary keywords:	pinja;les;termična modifikacija;impregnacija;odpornost;kratke dobavne verige;
Type (COBISS):	Article
Pages:	str. 1-13
Volume:	ǂVol. ǂ12
Issue:	ǂiss. ǂ8
Chronology:	2022
DOI:	10.3390/app12083801
ID:	15219911