Effect of Fire Retardant Chemicals on Glue Shear Strength of Plywood

Ajmal Samani; D. P. Khali

doi:10.36808/if/2016/v142i12/108414

Effect of Fire Retardant Chemicals on Glue Shear Strength of Plywood

Authors

Ajmal Samani Forest Products Division, Forest Research Institute, Dehradun, Uttarakhand
D. P. Khali Forest Products Division, Forest Research Institute, Dehradun, Uttarakhand

DOI:

https://doi.org/10.36808/if/2016/v142i12/108414

Keywords:

Fire Retardants, Plywood, Glue Shear Strength.

Abstract

Plywood and other composite wood items are susceptible to fire and degradation, however on treatment with fire retardant chemicals glue shear strength of plywood fairly decreases. In the present study, plywood was prepared from Poplar veneers using urea formaldehyde resin and treated with seven different fire retardant compositions. After treatment, the plywood was tested for glue shear strength and for fire retardance (flame penetration, rate of burning and flammability test) as per Indian standards. It was found that plywood treated with all seven compositions passed the fire retardant tests whereas plywood treated with four compositions passed the glue shear strength test.

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