抄録
In order to obtain fundamental data for gasification process of plastics, thermal gasification characteristics of plastics compounds containing flame retardant were investigated experimentally. Polypropylenes (PP) with flame retardant, which were composed by Al(OH)_3 or (NH_4PO_3)_n, were decomposed in an image furnace. The gas components produced by the thermal decomposition were measured by means of a gas analyzer. Soluble organic fraction (SOF) component produced during thermal decomposition process was analyzed with a combustion type PM analyzer. In addition, SOF and solid carbon components in the remains after the thermal decomposition were also analyzed by the PM analyzer. It was found that the thermal decomposition temperature increased with decreasing the oxygen concentration. As for the PP with Al(OH)_3, it was considered that PP was completely decomposed and main component of the remains was Al_2O_3 produced by decomposition of Al(OH)_3 even if the surrounding temperature increased up to 900K. As for the PP with (NH_4PO_3)_n, gradual mass reduction continued after rapid mass reduction.
