Improvement of intrinsic properties of wood by chemical wood densification - Hydrophobic aspects and durability aspects
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1999
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Melbourne Authors
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Abstract
To improve the intrinsic properties of Scot pine wood ((1) hydrophobic surface and (2) durability), two ways of chemical modification have been tested. The first one is the chemical modification of hydroxyl groups by active substances like diisocyanate compounds with a copolymerization step. The second way is a densification by an impregnation of resins and a gamma polymerisation. This second way is described and discussed in this paper The measured parameters are (1) the hydrophobic properties of the surface based on permeability measurements and (2) the biological durability against wood decaying fungi and (3) the weathering behaviour. Significant results are presented and discussed to promote another way of wood preservation based on densification by resins.
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PINE WOOD; RESINS; METHYL METHACRYLATE; STYRENE POLYESTER; DENSIFICATION; DURABILITY; WETTABILITY