Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.
2017
Volume 20
Issue 1
Topic:
Wood Technology
ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Kamperidou V. , Barboutis I. 2017. MECHANICAL PERFORMANCE OF THERMALLY MODIFIED BLACK PINE (PINUS NIGRA L.) WOOD, EJPAU 20(1), #02.
Available Online: http://www.ejpau.media.pl/volume20/issue1/abs-02.html

MECHANICAL PERFORMANCE OF THERMALLY MODIFIED BLACK PINE (PINUS NIGRA L.) WOOD

Vasiliki Kamperidou, Ioannis Barboutis
Laboratory of Wood Products and Furniture Technology, Faculty of Forestry and Natural Environment, Aristotle University of Thessaloniki, Greece

 

ABSTRACT

In this research, thermal modification of black pine (Pinus nigra L.) wood was conducted at 180C and 200C, for 3–7 hours and some essential mechanical properties, such as modulus of rupture (MOR), modulus of elasticity (MOE), impact bending strength, compression strength, hardness in tangential and radial direction and surface roughness, were examined. It was observed that, as the intensity of treatment increases, the equilibrium moisture content and density of modified wood tend to decrease. The treatments of 180C resulted in an improvement of bending strength, while treatments of 200C caused a decrease. MOE of treated specimens increased regardless the duration or temperature. The treatments of 180C increased the hardness, while at 200C this improvement was limited to smaller increase and a reduction in subsequent treatments. Treatments of 180C appeared to improve the impact bending strength, compared to control, while the treatments of 200C demonstrated a strength decrease. Additionally, all the treatments improved the compression strength of pine, and referring to surface roughness, only the milder treatment managed to decrease it.

Key words: Thermal modification, Bending, Elasticity, Hardness, Mechanical properties, Roughness.


Vasiliki Kamperidou
Laboratory of Wood Products and Furniture Technology, Faculty of Forestry and Natural Environment, Aristotle University of Thessaloniki, Greece
Phone +30-2310-998895
Fax +30-2310-998947
54124 Thessaloniki
Greece
email: vkamperi@for.auth.gr

Ioannis Barboutis
Laboratory of Wood Products and Furniture Technology, Faculty of Forestry and Natural Environment, Aristotle University of Thessaloniki, Greece
Phone +30-2310-998895
Fax +30-2310-998947
54124 Thessaloniki
Greece
email: jbarb@for.auth.gr

Responses to this article, comments are invited and should be submitted within three months of the publication of the article. If accepted for publication, they will be published in the chapter headed 'Discussions' and hyperlinked to the article.