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Calorimetric study of flammable fabrics. II. Analysis of flame retardant-treated cotton
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1973
Year
Materials ScienceChemical EngineeringEngineeringDiammonium PhosphateHeat ReleaseFire RetardancyCombustion ScienceFlame Retardant-treated CottonFire ResistanceFlame Propagation RateCalorimetric StudyThermodynamicsFlammable FabricsHeat TransferThermal EngineeringChemical KineticsFire Chemistry
Efficiencies of three flame retardants for cellulose, phosphoric acid, diammonium phosphate, and THPOH ammonia finish, have been evaluated based on the heat release value and the rate of heat release of treated fabrics burning in air measured with the isoperibol calorimeter. The results were compared and correlated with those obtained previously with the bomb-calorimetric technique. Complete heat balances were obtained for the systems studied by correlation of the calorimetric data and the measurement of combustible gases evolved from the fabric burning in air. The rate of heat release was found to correlate with the flame propagation rate measured at a 45° angle. The results from the heat, rate, and combustible gas measurements were interpretable in terms of existing mechanisms of flame-retardant action.