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Slay, J.R., Short, P.H. and Wright, D.C. (1980) Catalytic Effect of Extractives from Pressure-Refined Hardwood Fiber on the Gel Time of Urea—Formaldehyde Resin. Forest Products Journal, 30, 22-23.

has been cited by the following article:

  • TITLE: Factor Affecting Gel Time/Process-Ability of Urea Formaldehyde Resin Based Wood Adhesives

    AUTHORS: Ravindra V. Gadhave, Prakash A. Mahanwar, Pradeep T. Gadekar

    KEYWORDS: Urea Formaldehyde Resins, Catalysts, Gel Time, Wood, pH, Polyvinyl Acetate, Composite

    JOURNAL NAME: Open Journal of Polymer Chemistry, Vol.7 No.2, May 31, 2017

    ABSTRACT: Urea-formaldehyde (UF) resin presents the most utilized adhesive system in the manufacture of plywood, particleboard and fiberboard. At the temperatures above 100°C in the presence of hardener, this resin undergoes cross-linking reaction and the formation of three dimensional cross linked structures takes place and bonding of wood particles in a hot press [1]. UF powder resins show high reactivity and good performance in the production and by their low price; however they lack in water resistance of the hardened resin [2]. Urea-formaldehyde (UF) resins are the most important type of adhesive resins for the production of wood based panels but process-ability and curing behavior of urea formaldehyde resin depended on various factors related to resin properties, types of wood and their properties, amount & type of catalyst, types and amount of polymers addition and environmental conditions [3]. This factor decides the process-ability of UF resin based composite during manufacturing of plywood, particle board and fiberboard. In this review paper, various factors affecting gel time and process-ability of UF resin based wood composite are reviewed.