TAILIEUCHUNG - Báo cáo lâm nghiệp: "Beech (Fagus sylvatica L.) – Technological properties, adhesion behaviour and colour stability with and without coatings of the red heartwood"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài:"Beech (Fagus sylvatica L.) – Technological properties, adhesion behaviour and colour stability with and without coatings of the red heartwood" | Ann. For. Sci. 63 2006 129-137 INRA EDP Sciences 2006 DOI forest 2005105 129 Original article Beech Fagus sylvatica L. - Technological properties adhesion behaviour and colour stability with and without coatings of the red heartwood Evelyn PÕHLER Raoul Klingner Tina Kunniger EMPA Swiss Federal Laboratories for Materials Testing and Research Wood Laboratory Uberlandstrasse 129 8600 Dubendorf Switzerland Received 17 January 2005 accepted 7 October 2005 Abstract - European beech Fagus sylvatica L. is a popular and major tree species in Europe. The economic value of its timber is greatly decreased by the red heart phenomenon. The cause of red heart formation is well understood. However scientific investigations about the technological and mechanical behaviour of red heartwood are scarce. Our study aims to provide a sound scientific basis for the characterization of technological properties adhesion- as well as colour-behaviour of red-hearted beech. The mechanical and technological properties of red-hearted beech give no evidence of different behaviour in comparison with the normal beech wood. The adhesion behaviour shows equal results. In terms of colour stability the difference between freshly processed normal and red beech wood diminishes after certain time of exposure. red heart adhesion behaviour colour stability mechanical technological property Fagus sylvatica Résumé - Le bois de hêtre Fagus sylvatica L. - Propriétés technologiques comportement au collage et stabilité de la teinte du bois de cieur rouge. Le hêtre Fagus sylvatica L. est une espèce d arbre populaire important en Europe. La presence du creur rouge provoque une reduction notable de la valeur économique des grumes qui en sont atteintes. Les causes de l apparition du creur rouge sont bien connues mais les etudes scientifiques sur le comportement technologique et mécanique du hêtre à creur rouge sont cependant rares. La présente étude a pour but d établir des bases solides pour la .

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