DEGRADATION BEHAVIOR OF POLYMERIC MATERIALS FOUND IN AUTO SHREDDER RESIDUE WASTES

The thermogravimetry of a series of 50/50 mixtures of polypropylene, a crylonitrile/butadiene/styrene, polyvinyl chloride and polyurethane po lymers have been studied as representative of the major polymeric mate rials found in automobile shredder residues. The weight loss behaviour of these polymeric mixes have been compared with the results calculat ed from the individual polymeric components. This comparison of the th ermogravimetry curves and the calculated kinetic parameters indicates that interactions occur between the individual polymers when heated to gether. The extent of these interactions are dependent upon the polyme ric mixtures being considered, but in most cases the changes in the de gradation kinetic parameters were not large.