G0601-7-6 Thermal Decomposition Behavior of Plastics with Flame Retardant under Constant Temperature Condition

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  • G0601-7-6 一定温度条件下におけるプラスチックの熱分解特性におよぼす難燃剤の影響(熱工学(7)燃焼(2))

Abstract

In order to develop effective final treatment system of waste plastics, thermal gasification characteristics of plastics compounds containing flame retardant were investigated. Polypropylenes (PP) which contained Al(OH)_3 or (NH_4PO_3)_n as a flame retardant were decomposed and burned under constant temperature condition in an image furnace while changing O_2 concentration from 0% to 21%. Mass reduction during thermal decomposition was measured by an electric-micro balance. The gas components produced by the thermal decomposition and combustion process were analyzed with a gas analyzer. It was found that HC concentration for PP was the highest at 10% oxygen concentration when the ambient temperature Τ_a was 1073K. CO_2 concentration for PP contained 20wt% Al(OH)_3 was higher than PP under 21% oxygen concentration.

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