RUBBER SOLUTION ADHESIVES FOR WOOD-TO-WOOD BONDING

Rubber solutions were prepared and used for bonding wood pieces. The e ffect of the variation of chlorinated natural rubber (CNR) and phenolf ormaldehyde (PF) resin in the adhesive solutions on lap shear strength was determined. Natural rubber and neoprene-based adhesive solutions were compared for their lap shear strength. The storage stability of t he adhesive prepared was determined. The change in lap shear strength before and after being placed in cold water, hot water, acid, and alka li was tested. The bonding character of these adhesives was compared w ith different commercially available solution adhesives. The room-temp erature aging resistance of wood joints was also determined. In all th e studies, the adhesive prepared in the laboratory was found to be sup erior compared to the commercial adhesives. (C) 1998 John Wiley & Sons , Inc.