NONISOTHERMAL THERMOGRAVIMETRY OF POLYMERS .4. POLYETHYLENE AND ETHYLENE-VINYL ACETATE COPOLYMERS HIGHLY LOADED WITH AL(OH)3 AND MG(OH)2

The decomposition of polyethylene and ethylene-vinyl acetate copolymer s in composites with Al(OH)3 and Mg(OH)2 (60% by wt.) has been estimat ed from the aspect of the extent of synchronization of the two fundame ntal processes, the release of water and flammable volatiles from a po lymer and the effect of this on the resulting polymer flammability. An attempt has been made to implement the peculiarities of decomposition observed for each system to the fire behaviour of these materials.