Cure Characteristics of Phenol-Formaldehyde Resin Catalyzed with Ba(OH)2

摘要

Phenol-formaldehyde resins are high performance wood adhesives, and are also used to impregnate base papers which are manufactured high-pressure laminates applied in furniture and interior decoration. In this investigation, PF resins catalyzed with Ba(OH)2 were studied. Both Ba(OH)2 content and F/P molar ratio were found to influence the cure rate. The cure rate of the Ba(OH)2 catalyzed PF resin was faster by 50% than that of ordinary PF resin at 150°C. The DSC results showed that the Ba(OH)2 catalyzed PF resin was cured at a lower temperature than the ordinary PF resin. And the IR results showed that the Ba(OH)2 catalyzed PF resin has higher degree of ortho-position coupling.