Zhartovskiy S. Fire-protection effectiveness improvement of plywood by impregnation compositions

The dissertation work is dedicated to solution of an actual scientific and technical problem of fire-protection effectiveness improvement of plywood by impregnation compositions. It has been inculcated for fire-protection of public establishments. The specific conditions of plywood fire-protection have been theoretically stated and experimental proved. These conditions have reflected the correlation between plywood burning and pyrolysis processes and physico-chemical characteristics of impregnation composition that consisted of fire-retardant, polymeric antiseptic and hidrophobizator (by phlegmatization, inhibition and isolation of heat transmission). Easy flammable plywood has been transformed into hardly combustible state because of this impregnation composition. Optimal ratio of impregnation composition ingredients has been obtained and it has been experimentally proved that (because of quantity of impregnation mixture components in plywood) flammable products from plywood had been transformedinto products with fire danger attributes: hardly flammable and hardly combustible, flame non-booming by surface, with moderate smoke-forming capability, with toxic characteristic - "moderate danger". It has permitted to use building constructions made from fire-protected plywood at establishments of various purpose. The main results of the work have been used in working out of normative documents and in the research of possibilities of fire-protected plywood using at public establishments.