Servicio de Información Comunitario sobre Investigación y Desarrollo - CORDIS

Environmentally-friendly modification of wood to improve durability and dimensional stability

Lignocellulosic material such as wood is known to be strongly upgraded biologically (resistance to fungi and insect attack) and in the same treatment technologically (dimensional stability) when the cell walls are chemically modified. This is known to be successfully done with chemicals that are able to react with the hydroxyl groups. Most knowledge in this field of research has been built up with acetylation of lignocellulosic material, but other chemicals have potential too.

Various types of reaction, selected on the basis of existing literature, were studied at the laboratory scale. These reactions included esterification, expoxidation, acrylation, isocyanate treatment, silylation and oxidation of wood. The reaction conditions, technological properties and decay resistance of the chemically modified wood were investigated in detail. Modification reactions affording substantial improvement in properties, in particular esterification of wood using 1,2 cyclohexame dicarboxylic anhydride and acrylation with N-hydroxymethylacrylamide, were selected for further testing according to European Standard test methods.

Reported by

Stichting Hout Research (SHR)
3600 BN Maarssen
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