Przemysl Chemiczny, Vol.91, No.11, 2192-2195, 2012
Use of tanned leather waste for modification of urea-formaldehyde adhesives
(NH2)(2)CO/CH2O resin adhesive (UF) was modified by addn. of a collagen hydrolyzate (Cr-tanned leather waste) and used for making plywood. The addn. of collagen resulted in an increase in the adhesive viscosity and a decrease in CH2O content and emission from the plywood as well as in a decrease in shearing strength of the plywood.