Pyrolysis of flame retardant brominated polyester composites.
A series of three flame retardant, thermoset polyester/styrene composite wastes were pyrolysed in a static-bed reactor. The wastes contained different proportions of brominated polyester resin. Higher char and gas yields were observed on the pyrolysis of the brominated samples than for a similar non-brominated sample. The pyrolysis gas composition showed a small, but significant influence of pyrolysis temperature and by the use of brominated resin. In all cases, over 95wt % of the bromine originally present in the composite ended up in the condensable products. Thermo-gravimetric analysis indicated that the presence of brominated polyester resins decreased the temperatures at which the main decomposition region started and the maximum rate of weight loss was observed. The global apparent activation energy of decomposition was between 83 and 97kJ mol(-1).
Cunliffe
A M
AM
Energy and Resources Research Institute, SPEME, The University of Leeds, Leeds, LS2 9JT, UK.
Williams
P T
PT
D001966:Bromine / Q000032:analysis; D002713:Chlorine / Q000032:analysis; D005411:Flame Retardants; D005461:Fluorine / Q000032:analysis; D005740:Gases / Q000032:analysis; D006358:Hot Temperature; D010796:Phthalic Anhydrides / Q000737:chemistry; D011091:Polyesters; D012037:Refuse Disposal / Q000379:methods*; D013818:Thermogravimetry
D005411:Flame Retardants; D005740:Gases; D010796:Phthalic Anhydrides; D011091:Polyesters; D005461:Fluorine; D002713:Chlorine; D001966:Bromine; C043103:phthalic anhydride