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Research Trend of The Heat-Treatment of Wood for Improvement of Dimensional Stability and Resistance to Biological Degradation
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 Title & Authors
Research Trend of The Heat-Treatment of Wood for Improvement of Dimensional Stability and Resistance to Biological Degradation
Kim, Yeong-Suk;
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 Abstract
This was investigated on the major issues and research trends regarding the heat-treatment of woods through literature reviews. The principal heat-treatment technologies utilized for industrial purposes include the Plato-process (Netherlands), the Retification process (France), the OHT-process (Germany), and the Thermowood Process (Finland). Factors that mainly influence the heat-treatment process are the wood species, process temperature, processing time, and the heating medium (air, steam, vacuum, N2, oil, etc.). Researches on investigating the optimal conditions with these process conditions being the variables stand as the mainstream. Heat-treated woods present dimensional stability improvement, but mass loss and strength reduction, a wide variations for decaying inhibition, and insufficient resistance against mold, wood borer, and termites. For further improvement in respects of durability or resistance to biological degradation, necessity to search for more suitable heat treatment process and processing conditions fit for each wood species has been suggested. Exploiting new ways to utilize heat-treated wood and extending its range of use have been considered to be important matters that need more effort put into for the sustainable and sound environment as well as saving the wood resources.
 Keywords
heat-treatment;heat-treated wood;biological resistance;dimension stability;modulus of rupture;
 Language
Korean
 Cited by
 References
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