利用废聚苯乙烯合成溴化聚苯乙烯阻燃剂

Synthesis of Bromized Polystrene Flame Ratardant from Recycled Polystrene

本文利用三氯化铝作催化剂,废聚苯乙烯与溴发生亲电取代反应合成溴化聚苯乙烯阻燃剂。阻燃剂的含溴量达60—70%。采用红外光谱仪分析溴化聚苯乙烯的结构。使用氧指数、差热分析研究其阻燃性和热稳定性。

In this paper, bromized polystyrene flame retardant was synthesized by electrophilic substitution of waste polystrene with bromine using aluminium ehlorid as catalyst. The amount of bromine is about 60～70 percent in bromized polystyrene. The structure of bromized polystyrene was identified by IR, and its flame retardanee and thermal stability have also been investigated by oxygen index determination and DTA.