Results 221 to 230 of about 3,858 (249)

Chemical Characterization and Comparison of Thermally Treated Beech and Ash Wood

Materials Science Forum, 2008
Thermal treatments of two wood species were examined. The temperature load at 200 °C on the wood causes characteristic changes in the chemical composition. The determination of specific alterations was carried out by means of suitable methods, both wet chemical and instrumental analyses.
Elisabeth Windeisen, Gerd Wegener
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Thermal Properties and Flame Retardancy of Wood Treated with a Series of Stannates

Advanced Materials Research, 2010
A flame retardant wood was prepared using a series of insoluble stannates through the double bath technique. The flame retardancy of the wood samples was studied with the LOI method. The relationships between the flame-retardant performance and the thermal property of wood were studied by the thermogravimetric analysis (TGA), differential ...
Hong Qiang Qu, Wei Hong Wu, Lei Liu, Jian Zhong Xu   +3 more
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Thermal Decomposition of Wood Treated with Silicates by Thermogravimetry–Mass Spectrometry

Advanced Materials Research, 2011
The thermal decomposition of wood treated with a series of silicates was characterized by thermogravimetric (TG) analysis, differential thermogravimetry (DTG), and thermogravimetry–mass spectrometry (TG–MS) analysis. The addition of these chemicals caused a decrease in the decomposition temperature, a reduction in weight loss, and an increase in the ...
Hong Qiang Qu, Wei Hong Wu, Chun Zheng Wang, Xin Liu, Chun Meng Yin   +4 more
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The potential of colour measurement for strength prediction of thermally treated wood

Holz als Roh- und Werkstoff, 2006
This paper investigates the effects of thermal treatment of birch with respect to colour and strength. Birch wood was treated at 175 °C and 200 °C for 0 h, 1 h, 3 h and 10 h. In bending-strength experiments, treatment was also performed at 185 °C for 2 h.
Dennis Johansson, Tom Morén
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Accelerated Artificial Ageing of Thermally Treated Ash Wood

2014
Relevant properties of wood floorings are dimensional stability, hardness and strength, dependant on wood species, where also their workability, permeability and impregnability have the important role. Despite all the advantages, heat-treated timber has some undesirable properties comparing to the natural wood used for flooring, which depends also on ...
Klarić, Miljenko, Prekrat, Silvana, Pervan, Stjepan   +2 more
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SPECTRAL ANALYSIS OF ULTRASONIC WAVES FOR THE CHARACTERIZATION OF THERMALLY TREATED WOOD

1991
In this paper, we report the ability of ultrasonic spectral analysis to point out the influence of thermal treatments on the rheological behaviour of wood. A short theoretical background is given, as well as the description of the experimental device. After some results on PVC, duraluminium and natural wood, we present our results on the study of the ...
I. BOHNKE, R. GUYONNET
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Investigation in the kinetics of thermal and thermo-oxidative degradation of wood treated with fire-retardants and untreated wood

Pozharnaia bezopasnost`, 2020
Разработана экспериментальная методика определения механизма огнезащитного действия антипиренов на основе изучения кинетики термической и термоокислительной деструкции древесины. Отработка методики проведена на антипирене MgCl (бишофит). Методика основывается на количественной оценке при термическом разложении древесины выхода продуктов деструкции: CO,
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Thermal Properties of Composites Made of Heat-treated Wood and Polypropylene

Journal of Composite Materials, 2009
Exposure of wood to high temperatures improves thermal stability of wood and it has been used as a means to boost dimensional stability of wood for centuries. Inclusion of wood in thermoplastic matrix composites reduces the thermal stability of the composites considerably because of poor adhesion between wood and the matrix, and ...
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Embedding and withdrawal resistance of screws on thermal treated wood

2014
Tests were conducted at LNEC to assess withdrawal resistance and embedding strength of commercial heat treated wood (ThermoWood®) Thermo-D pine with various types of screws, to predict the short-term performance of screwed joints. These had in mind a suitable design and detailing of screwed joints in ThermoWood®, even in non-structural applications ...
Cruz, H., Rodrigues, S. M., Gomes, A.
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Enhancement in environmental properties of PVC-wood composites by thermally treated wood and silanemodified ZnO nanoparticles

2013
Wood-plastic composites (WPC) typically include cellulose-based fine waste. WPC s are less susceptible to environmental effects compared to wood itself. However WPC s are not totally insensitive to environmental effects like UV and moisture. This study was made for PVC-wood composites concentrating on thermally treated wood-flour.
Saarimäki, Eetta, Paajanen, Mika, Minkkinen, Hannu, Aguilar, A., Román-Aguirre, M., Benavides, R., Bocanegra, J., Tena, C., Martinez, J., Ferroni, F.   +9 more
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