Formaldehyde-free wood adhesives from decayed wood

Abstract

Kxtensive studies using mussel adhesive protein as a formaldehyde-free, strong, and water-resistant adhesive model revealed that a combination of a polymer with catechol moieties and a polymer with amino groups could serve as a strong and water-resistant wood adhesive. This study demonstrated that the treatment of abundant and readily available brown-rot-fungus-decaycd wood with NaBH4, followed by mixing with polyethylenimine resulted in a formaldehydefree, strong, and water-resistant wood adhesive. © 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.