Optimizing chemical wood modification with oligomeric lactic acid by screening of processing conditions

Grosse Charlotte, Grigsby Warren J., Noël Marion, Treu Andreas, Thévenon Marie-France, Gerardin Philippe. 2019. Optimizing chemical wood modification with oligomeric lactic acid by screening of processing conditions. Journal of Wood Chemistry and Technology, 39 (6) : 385-398.

https://doi.org/10.1080/02773813.2019.1601739

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Quartile : Q1, Sujet : MATERIALS SCIENCE, PAPER & WOOD

Résumé : When exposed to moisture, wood undergoes swelling and is susceptible to fungal degradation. Chemical modification via oligomeric lactic acid (OLA) treatment has been found to be a promising environmentally friendly solution to this disadvantage. In this study, wood was impregnated with OLA and then variously heat treated to polymerize the OLA in situ. The effect of curing temperature and time on OLA polymerization has been determined chemically. Dimensional stability was examined by water immersion and hygroscopicity measurements and biological decay resistance also evaluated. OLA impregnation followed by heat treatment enhanced wood properties. OLA cure at 160 _C for 48 h resulted in treated wood with greater dimensional stability and biological resistance.

Mots-clés Agrovoc : Fagus sylvatica, bois, produit de préservation du bois, acide lactique, traitement thermique, polymérisation, résistance aux organismes nuisibles

Mots-clés géographiques Agrovoc : Suisse

Mots-clés libres : Beech, Chemical modification, Lactic acid, Curing, Optimization

Classification Agris : K50 - Technologie des produits forestiers

Champ stratégique Cirad : CTS 7 (2019-) - Hors champs stratégiques

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