Article Dans Une Revue Annals of Forest Science Année : 2007

Effect of an oil heat treatment on the leachability and biological resistance of boric acid impregnated wood

Résumé

Vegetable oils provide boron retention of about 30% of initial amount depending on oil drying properties. Linseed oil is the most efficient, followed by soybean oil and rapeseed oil. Durability of C. japonica and F. crenata wood specimens has been enhanced by application of linseed oil alone but not enough to reduce termite’s attack of Coptotermes formosanus. Treating wood with a 1.0% w/w boric acid solution prior to oil treatment protects C. japonica from termite and fungi degradations. Efficiency against termites is mainly due to boron retention by oil but hydrophobic oil also forms a barrier decreasing fungi penetration. Boron efficacy threshold around 0.7 kg/m3BAE, lower than classical boron treatments thresholds indicates that oil water-repellence reinforces boron biostatic effect.

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hal-00884120 , version 1 (11-05-2020)

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Florent Lyon, Marie-France Thevenon, Won-Joung Hwang, Yuji Imamura, Joseph Gril, et al.. Effect of an oil heat treatment on the leachability and biological resistance of boric acid impregnated wood. Annals of Forest Science, 2007, 64 (6), pp.673-678. ⟨10.1051/forest:2007046⟩. ⟨hal-00884120⟩
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