iufro division 5 conference 5.04.06 – wood drying
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IUFRO Division 5 Conference 5.04.06 – Wood drying. University of Freiburg, Institute of Forest Utilization and Work Science , Germany. Corbat Holding SA , Swiss. Wood Treatment Technology, Denmark. Improving the dimensional stability of different wood species by thermal modification. - PowerPoint PPT PresentationTRANSCRIPT
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IUFRO Division 5 Conference5.04.06 Wood dryingImproving the dimensional stability of different wood species by thermal modificationDenny OHNESORGE
INSTITUTE of FOREST UTILIZATION and WORK SCIENCE*
Authors/InstitutionDenny OHNESORGE*, Claudia STOLERU and Gero BECKERAlbert-Ludwig-University FreiburgInstitute of Forest Utilization and Work ScienceWerthmannstr. 6D-79085 Freiburg, Germany
E-mail:[email protected] Web:http://www.forst.uni-freiburg.de/fobawiImproving the dimensional stability of different wood species by thermal modification
INSTITUTE of FOREST UTILIZATION and WORK SCIENCE*
Objectives and MethodImprovement of wood properties by thermal modification with the aim to develop products for new usagesMoisture-Heat-Pressure-Treatment between 160 and 220C withTreatment in a Vaccum kiln dryersamplesBoards from 4 different wood speciesPoster presented results of: Sorbtion ability and Swelling & shrinkingSeveral tests on hardness and strength Climate chamber
INSTITUTE of FOREST UTILIZATION and WORK SCIENCE*
ResultsDecrease of oven-dry densityDecrease of Sorbtion abilityIncrease of dimensional stability (ASE-Index)Sorbtion abilitydimensional stability (ASE-Index)
INSTITUTE of FOREST UTILIZATION and WORK SCIENCE*
ConclusionsUse of thermal modified, indigenous wood species in (for this wood species) new utilizations by improvement of:Natural durabilityDimensional stabilityTerracce flooringsBathroom flooringsSolid furniture