Wood is used as construction material because it’s strength and aesthetical properties from time immemorial. The shortages in wood application are bio-deterioration and swelling or shrinkage in variable humidity conditions. Acetylation with acetic anhydride of wood is well accepted and commercialized the wood modification method. Vegetable oils are used to make wood water-repellent and to decrease its dimensional changes. Simultaneous used of different agents may exhibit synergistic effect on the wood protection against water. Wood acetylation and impregnation with rapeseed oil was used as joint modification method. The modified wood samples cyclic treatments with soaking in hot water with subsequent-freezing and drying were used to evaluate each method individual and combined influence.
Keywords: acetic anhydride, acetylation, impregnation, rapeseed oil
Authors
Morozovs A.
Department of Wood Processing, Latvia University of Agriculture, Jelgava, Latvia
Laiveniece L.
Department of Wood Processing, Latvia University of Agriculture, Jelgava, Latvia
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