Guanyl urea phosphate-based adhesive for fire-retardant particleboard

Particle board is widely used for panelling, partitioning and ceiling in buildings. A novel type of flame-retardant particle board was prepared based on one kind of flame-retardant adhesive. The flame-retardant adhesive was composed of the fire-retardant chemical (mixture of guanyl urea phosphate (GUP), boric acid (BA)) and melamine urea formaldehyde resin. The data reveal that there was improvement in flame retardancy properties like flame penetration, flammability and rate of burning. Among the all three formulations of GUP: BA ratio showed the best performance in improving the fire retardancy of particle board when exposed to fire. Physical and mechanical properties of particle board such as water absorption, modulus elasticity, modulus of rupture and internal bond strength have been evaluated as per Indian standard 3087.