WEEE recycling: Pyrolysis of fire retardant model polymers.
Pyrolysis treatments of model polymers were made with the aim of studying the recycling of wastes from electronic, electric equipment containing brominated flame retardants. Pyrolysis of flame retarded high impact polystyrene and epoxy resins were made both in flow and closed systems. Products of pyrolysis were analysed with FT-IR spectroscopy and GC-MS and the evolution of bromine was followed with a bromine ion specific electrode. The effect of alkali on pyrolysis was also studied demonstrating, as far epoxy resin is concerned, to be effective on decreasing bromine content in oil and volatile products leading to the recovery of bromine from the residue by washing. The alkali treatment was shown to be less effective in styrenic polymers containing brominated flame retardants.
Luda
M P
MP
Dipartimento di Chimica, IFM dell'Università Via P. Giuria 7, 10125 Torino, Italy.
Euringer
N
N
Moratti
U
U
Zanetti
M
M
D003247:Conservation of Natural Resources; D004581:Electronics; D005411:Flame Retardants; D008401:Gas Chromatography-Mass Spectrometry; D017745:Incineration; D011108:Polymers / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D014835:Volatilization
D005411:Flame Retardants; D011108:Polymers