Attached
ear of environmental impact of timber production has spurred exploration of
alternative fiber sources for the production of wood based material. fast growing
tree and agriculture residues are the two key alternative fiber sources. For
reducing dependency on petrochemicals, development of adhesive resins from
renewable resources has gained importance and become inevitable. Natural
adhesiveresins are free of health risks. Nowadays soya based adhesives are utilized
for bonding of wood materials (particle boards)
orne of the factors that give rise to failure in adhesion of wood particles in
compositeboard are poor chemical and physical interfacial interaction between the
woodsurface and resin and dissimilar swelling of resin and wood due to moisture
absorption. Improvements to adhesive can be affected by way of changing the
chemicalnature of the polymer in the wood cell wall. The changes so effected trigger
modification of properties such as dimensional stability, moisture absorption and
compatibilitywith other materials.
oya based bonding particle board possess high strength and moderate water
resistance property. Because of this inherent property, soya based resins particle
boards are used for interior applications.
