The Thermal and Flammability Behavior of Polyester-Wool Blends

The flammability behavior of a series of polyester-wool fabrics has been investigated in terms of a number of flaming combustioh and thermal-decomposition characteristics. Combustion behavior has been characterized by mass burning rate and heat emission measurements. Decomposition behavior has been studied by dynamic thermogravimetry, pre-ignition kinetics, and analysis of volatile decomposition products. These fiber blends show burning behavior more complex than would be expected from the additive behaviors of the two components. The decomposition data provide evidence for chemical interactions during decomposition, which may be the reason for the anomalous burning behavior.