The Research on UF Resin Glue Modified with the Wollastonite Powder
Two kinds of wollastonite powders, original and silane pretreated ones were used to modify UF resin. The influences of wollastonite powders on the UF resin and on the agglutination performance of the particleboard bonded with the wollastonite powder modified resin were studied. Research showed that wollastonite and its additive amount had certain influence on solid content, pH value, viscosity, contact angle and curing time of the UF resin. The agglutination performance of the particleboard bonded with the modified UF resin glue was lower than that of unmodified resin bonded particleboard, and along with the wollastonite content increasing, the particleboard 75 increased and its IB declined;but the former could still reach Chinese national standard. According to the experiment results, a conclusion could be drawn that it was feasible to use wollastonite as UF resin modifier.