Journal
WOOD SCIENCE AND TECHNOLOGY
Volume 37, Issue 5, Pages 339-348Publisher
SPRINGER
DOI: 10.1007/s00226-003-0205-5
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This review describes the treatment of wood with various inorganic silicon compounds. Among these compounds silicofluorides represent one of the long-known classes of wood preservatives based on silicon. Data on an organic fluorosilicon compound (silafluofen) are additionally presented. The mode of action of these fluorides is based on their biocidal action. Water glass, an alkali silicate, was able to enhance the durability of wood but showed some important drawbacks. Because of its high hygroscopicity and its high pH values, increased moisture absorption and strength loss of wood was frequently observed. Wood treated with tetraalkoxysilanes showed an enhanced dimensional stability, especially when the hydrolysis and the condensation of the silanes was controlled to react within the cell wall. Durability and fire resistance were improved to a certain degree and could be significantly enhanced by addition of boron compounds.
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