Abstract
The pyrolysis of three plastics used by the electronics industry has been studied using pyrolysis/gas chromatography/mass spectrometry (Py/GC/MS). The materials selected for this study were acrylonitrile–butadiene–styrene (ABS), polycarbonate (PC) and polyoxymethylene (POM). The selection was based upon the analysis of several pieces of electronic equipment, which had been the subject of laboratory studies. Each polymer was pyrolyzed at two pyrolysis temperatures (700 and 900°C) alone, together (side by side) with polyvinyl chloride (PVC) in a 50/50 co-pyrolysis experiment, and as an intimate chemical blend with PVC (50/50). In addition the three polymers were also pyrolyzed in the presence of copper powder to determine the role of copper contamination on the pyrolysis of each polymer. The results of the study suggest that both the presence of PVC and copper can influence the extent of degradation and the pyrolysis product distribution obtained when these polymers are pyrolyzed. However, no significant changes were noted that could drastically influence the value of the pyrolysis products.
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