In order to study the thermal stability of accelerated-curing PF resin, the curing behavior of fresh PF resin was investigated in the presence of single accelerator of methylolurea derivatives (MMU), magnesium hydrate (Mg(OH)2), 25% aqueous solution of sodium carbonate (Na2CO3), and propylene carbonate (PC). Also their optimum combination was added in fresh PF resin. The thermal stability of cu...

Thirteen nonacidic waterborne preservatives were in­ vestigated for their compatibilitywith phenol-formaldehyde adhesive on aspen veneer treated with the preservatives to retentions of 0.2, 0.4, and 0.6 pcf. Of these preserva­ tives, didecyl dimethyl ammonium chloride (DDAC),DDAC with copper, DDAC with carbamate (DDACCA),sodium fluoride,and ammonium hydrogen difluoridedid not inter­ fere with a...