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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Candelier, Kévin
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2023Heat treatment of poplar plywood: modifications in physical, mechanical and durability propertiescitations
- 2021Assessment of catalytic torrefaction promoted by biomass potassium impregnation through performance indexescitations
- 2021A potassium responsive numerical path to model catalytic torrefaction kineticscitations
- 2020Anti-fungal and anti-termite activity of extractives compounds from thermally modified ash woodscitations
- 2019Termite and decay resistance of bioplast-spruce green wood-plastic compositescitations
- 2018Comparative study of local Tunisian woods properties and the respective qualities of their charcoals produced by a new industrial eco-friendly carbonization processcitations
- 2017Some physical and mechanical characterization of Tunisian planted #Eucalytus loxophleba# and #Eucalyptus salmonophloia# woods
- 2017Developing biocomposites panels from food packaging and textiles wastes: Physical and biological performancecitations
- 2017Resistance of thermally modified ash (#Fraxinus excelsior# L.) wood under steam pressure against rot fungi, soil-inhabiting micro-organisms and termitescitations
- 2016Study on chemical oxidation of heat treated lignocellulosic biomass under oxygen exposure by STA-DSC-FTIR analysiscitations
- 2016Control of wood thermal treatment and its effects on decay resistance: a reviewcitations
- 2015Heat treatment of tunisian soft wood species: effect on the durability, chemical modifications and mechanical propertiescitations
- 2015Impact of location and forestry conditions on some physical and mechanical properties of northern Tunisian #Pinus pinea# L. woodcitations
- 2015Mechanical characterization of heat-treated ash wood in relation with structural timber standards
- 2015Utilization of temperature kinetics as a method to predict treatment intensity and corresponding treated wood quality: Durability and mechanical properties of thermally modified woodcitations
- 2014Advantage of vacuum versus nitrogen to achieve inert atmosphere during softwood thermal modification
- 2013Utilization of TG-DSC to study thermal degradation of beech and silver fir
- 2013Effect of the nature of the inert atmosphere used during thermal treatment on chemical composition, decay durability and mechanical properties of wood
- 2013Comparison of chemical composition and decay durability of heat treated wood cured under different inert atmospheres: Nitrogen or vacuumcitations
- 2013Comparison of mechanical properties of heat treated beech wood cured under nitrogen or vacuumcitations
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article
Comparison of chemical composition and decay durability of heat treated wood cured under different inert atmospheres: Nitrogen or vacuum
Abstract
Wood heat treatment is an attractive alternative to improve decay resistance of low natural durability wood species. Nowadays, several types of thermal treatments of wood exist. These treatments differ mainly by the nature of the inert atmosphere used to avoid wood combustion which may correspond to: nitrogen, vacuum, steam or oil. Decay resistance is strongly correlated to thermal degradation of wood cells wall components and consequently of treatment conditions from which depend chemical modifications. The aim of this study is to determine the effect of a new generation of treatment performed under vacuum on the chemical modifications occurring during treatment. For this purpose, one hardwood (beech) has been treated under different conditions (vacuum, nitrogen, steam). All treatments were performed at 220 °C for mass losses resulting from wood thermodegradation of approximately 12%. For each treatment condition extractives, Klason lignin, hemicelluloses and α-celluloses content were determined as well as monosaccharide composition. Intensity of thermodegradation was also evaluated by TD-GC-MS. Results show that extracts content were lower in the case of wood samples treated under vacuum, while lignin, hemicelluloses and α-celluloses contents were higher in the case of samples treated under steam and nitrogen, indicating lower wood degradation under vacuum treatment. These results were confirmed by chromatography analyses according to the nature and quantity of thermodegradation volatile products formed during TD-GC-MS analyses.