Results 261 to 270 of about 54,055 (293)

Photodegradation of thermally modified wood

Journal of Photochemistry and Photobiology B: Biology, 2012
Natural wood, being biological material, undergoes rapid degradation by ultraviolet (UV) radiations and other environmental factors under outdoor exposure. In order to protect wood from such degradation, the chemical structure of wood is altered by chemical modification or heat treatment.
Kavyashree, Srinivas, Krishna K, Pandey
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Sorption isotherms of thermally modified wood

hfsg, 2012
Abstract The hygroscopic properties of thermally modified wood have been studied in terms of adsorption and desorption processes. Poplar (Populus spp.) and European beech (Fagus sylvatica L.) were in focus. The obtained isotherms were parameterized with the models of Hailwood-Horrobin, Guggenheim-Anderson-deBoer, generalized D’Arcy and ...
Wiesław Olek, Jerzy Majka, Łukasz Czajkowski   +2 more
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Characterisation of thermally modified wood: molecular reasons for wood performance improvement

Holz als Roh- und Werkstoff, 1998
Relatively mild thermal treatments of wood according to a two step process which leads to improved dimensional stability and improved timber performance were investigated by solid phase CP-MAS 13C-NMR to understand at molecular level the reasons for the improvements reported. All the occurrences described appear to be the consequence of reactions which
Tjeerdsma, B.F., Boonstra, M., Pizzi, A., Tekely, P., Militz, H.   +4 more
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Thermally modified birch wood interaction with liquids

European Journal of Wood and Wood Products, 2020
Large research work is currently being performed concerning different elaborated new wood protection methods. However, combining industrially well-approbated processes is also considered potentially quite promising and such approach is being actively studied.
Dace Cirule, Anrijs Verovkins, Ingeborga Andersone, Edgars Kuka, Bruno Andersons   +4 more
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Wood plastic composites made with thermally modified birch wood residues

International Wood Products Journal, 2016
Thermally modified (TM) wood production has significantly increased in the last decade. The trend for TM wood residues should be similar – rapidly increasing, which has prompted this research on the possible efficient uses of these residues, such as sawdust. One of the possibilities could be the production of wood plastic composites (WPCs).
E. Kuka, D. Cirule, J. Kajaks, I. Andersone, B. Andersons   +4 more
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Decay of Thermally Modified Engineered Wood Products

Forest Products Journal, 2018
Abstract In this study, rated plywood, oriented strand board, laminated strand lumber, and laminated veneer lumber were thermally modified as a posttreatment at 140°C, 150°C, 160°C, 170°C, and 180°C using a closed, pressurized treatment method.
H. M. Barnes, M. D. Aro, Amy Rowlen
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Surface properties of thermally modified wood floorings

2015
Thermally modified wood (TMW) surfaces appear very attractive and are therefore ever more frequently used in floorings. Positive changes of properties as a result of thermal modification like improved dimensional stability, reduced equilibrium moisture content, reduced water vapour and liquid water permeability are frequently used as an important ...
Živković, Vjekoslav, Turkulin, Hrvoje
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Quality control methods for thermally modified wood

Holzforschung, 2015
Abstract Thermally modified wood (TMW) is currently produced commercially by a range of processes across many countries. A prerequisite of the commercial success is an efficient quality control (QC), and methods with this regard are discussed in this review. When direct measurement of the key attribute of the material is not feasible, QC
Wim Willems, Charalampos Lykidis, Michael Altgen, Lothar Clauder   +3 more
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Magnetic Resonance Studies of Thermally Modified Wood

Holzforschung, 2002
Summary Thermal modification of wood produces a wood material with many interesting properties, such as enhanced dimensional stability, lower equilibrium moisture content and increased biological durability. Changes in the chemical structure of pine (Pinus sylvestris) caused by thermal treatment were investigated by studying various ...
Sivonen, Hanne, Maunu, Sirkka L., Sundholm, Franciska, Jämsä, Saila, Viitaniemi, Pertti   +5 more
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Surface properties of sol–gel treated thermally modified wood

Journal of Sol-Gel Science and Technology, 2010
The application of inorganic sol coating agents is a versatile method for wood surface functionalisation. However, the use of sols for the surface finishing of thermally modified wood (TMT) so far has not been investigated thoroughly. This paper reports on the surface properties of TMT treated with modified silica sols.
Boris Mahltig, Martin Arnold, Per Löthman   +2 more
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