Ukrainian Journal of Forest and Wood Science

The physical model of wood ignition process and its mathematical interpretation, which feature is the presence of discharge capacity (absorption) of heat by the thermal decomposition of the material and the index of the rate of thermal expansion slowing combustion reactions in the application of fire-retardant coating. The solution to this problem of the analytical method. It was revealed that the untreated wood material passes fast ignition process and the evolution of considerable heat, flame retardancy to wood temperature below the ignition temperature of wood. To establish the effectiveness of the application of fire retardant coating studies were conducted to determine the flammability of wood group in terms of weight loss and increase the flue gas temperature, and found that in the processing of wood coatings mass loss does not exceed 5%, and the temperature does not exceed 160 ° C. Experimental studies have established that after placing the wood sample in the test chamber, begins its ignition temperature with a significant allocation, but the flame retardancy of the sample timber is a gradual decrease in temperature, ie fixed coating operation, and therefore decrease the intensity of the burning wood fire resistant coating, clearly confirms the accuracy of the developed model.

fire, coating, timber weight loss, charring, the temperature of the flame, the surface treatment