Nano science and nano technology provides
numerous opportunities for enhancing the properties of wood
based panel products. In this study an extender was made using
nano silicon dioxide ( Sio2), nano calcium carbonate( CaCo3)
with some specialty chemicals at a certain reciprocal proportion.
Efficacy study was carried out with both phenolic and amino resin
in terms of rheological and formaldehyde emission test using
reinforcement of nano additive as extender at different
concentration level. The plywood panels has been tested as per
IS: 1734-1983 for mechanical properties. The rheological and
adhesive properties has been tested as per IS 848: 2006. The test
data reveals that enhancement of rheological, bonding and
mechanical properties have been achieved after reinforcement of
synthetic resin. The increase in the percentage of
nano-additive caused an increase of viscosity, glue shear strength
and minimizing the formaldehyde emission than using individual
nano silicon dioxide ( Sio2), nano calcium carbonate( CaCO3)
instead of the extender made by combination of above. Using
nano additive extender at 5%, there is an increase in glue shear
strength in the glue line and enhanced rheological properties in
amino resin based adhesive was observed.
Effect of Nano-additive on the Bonding Strength and Formaldehyde Emission of the Plywood Adhesive during Manufacturing of Wood Based Panel Products
