FIRE DEGRADATION OF AN INTUMESCENT FLAME-RETARDANT POLYPROPYLENE USING THE CONE CALORIMETER

被引:92
作者
BOURBIGOT, S [1 ]
LEBRAS, M [1 ]
DELOBEL, R [1 ]
机构
[1] CTR RECH & ETUDE PROCEDES IGNIFUGAT MAT,F-62160 BULLY LES MINES,FRANCE
关键词
CONE CALORIMETER; FLAME RETARDANT POLYPROPYLENE; INTUMESCENCE; DEGRADATION FRONT; INVARIANT KINETIC PARAMETERS METHOD;
D O I
10.1177/073490419501300101
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This work studies the fire degradation of an intumescent formulation Polypropylene (PP)-Ammonium Polyphosphate (APP)/Pentaerythritol (PER) using the cone calorimeter. An intumescence model is described which introduces the notion of degradation front. From the weight loss data recorded by the cone calorimeter and the results of the invariant kinetic parameters method (given in appendix) applied to the PP and to the PP-APP/PER system, the respective temperatures of the degradation fronts are measured. A stability zone is shown where the protection is effective. The intumescent coating degrades then by forming a carbonaceous residue which reduces the heat flux evolved.
引用
收藏
页码:3 / 22
页数:20
相关论文
共 20 条
[1]  
Lesnikovich A.I., Levchik S.V., A Method of Finding Invariant Values of Kinetic Parameters, J. Therm. Anal., 27, (1983)
[2]  
Nikoalev A.V., Gorberchev V.A., V.M. Logvimenko, Special Features of the Compensation Effect in Non-Isothermal Kinetics of Solid Phase Reactions, J. Therm. Anal., 6, (1974)
[3]  
Criado J.M., Gonzales M., The Method of Calculation of Kinetic Parameters as a Possible Cause of Apparent Compensation Effect, Thermochim. Acta., 46, (1981)
[4]  
Lesnikovich A.I., Guslev V.G., S.V. Levchik, Thermolysis of Potassium Tetraperoxochromate (V). II. Linear Heating, Thermochim. Acta., 77, (1984)
[5]  
Hoel P.G., In Statistique Mathématique, (1991)
[6]  
Delobel R., M. Le Bras, Ouassou N., Alistiqsa F., Thermal Behaviors of Ammonium Polyphosphate-Pentaerythritol Intumescent Additives in Polypropylene Formulations, J. Fire Sc., 8, 2, (1990)
[7]  
“Standard Test Method for Measuring the Minimum Oxygen Concentration to Support Candle-Like Combustion of Plastics (Oxygen Index) ASTM D2863/77, American Society for Testing and Materials, Philadelphia,” Tests for Flammability of Plastic Materials for Part in Devices and Appliances (UL-94). Underwriters Laboratories, Northbrook.
[8]  
Bourbigot S., Delobel R., M. Le Bras, Carbonization Mechanisms Resulting from Intumescence. Association with the Ammonium Polyphosphate-Penaerythritol Fire Retardant System, Carbon, 31, 8, (1993)
[9]  
Babraukas V., Development of the Cone Calorimenter-A Bench Scale Heat Release Apparatus Based on Oxygen Consumption, Fire and Materials, 8, 2, (1984)
[10]  
Babraukas V., Twilley W.H., W.D. Walton, J.R. Lawson, Upholstered Furniture Heat Release Rates Measured with a Furniture Calorimeter, NBS-IR, 82, (1982)