Composite wood board

摘要

In a stack of composite wood boards, the wood boards comprise wood particles and an organic binder.

主权项

1. A composite wood board comprising a collection of wood held together by a thermoset organic binder, wherein the thermoset organic binder includes at least one reaction product of:
i) a reducing sugar reactant selected from the group consisting of: a reducing sugar; a reducing sugar yielded by a carbohydrate in situ under thermal curing conditions; and combinations thereof; and ii) an amine reactant, wherein the amine reactant is a non-protein primary amine reactant NH2—R1, where R1is alkyl substituted by amino and wherein R1 does not comprise a secondary amino group; and where the composite wood board has one or more of the following characteristics: a modulus of elasticity (MOE) of at least 1800 N/mm2,
a bending strength (MOR) of at least 14 N/mm2,an Internal bond strength (IB) of at least 0.28 N/mm2,a thickness swelling after 24 hours in water at 20 ° C. of less than or equal to 12%,a water absorption after 24 hours in water at 20 ° C. of less than or equal to 40%.