The flame retarded properties of intumescent flame retarded LDPE blends in the presence of oxidant ((NH_4)_2SO_4) and the charring agents (coal and asphalt) were studied with the limited oxygen index and the horizontal burning methods.

• 以氧指数和水平燃烧法作为考察阻燃性能的手段,主要研究了氧化剂(NH_4)_2SO_4和成炭剂煤、沥青对膨胀阻燃低密度聚乙烯阻燃性能的影响,结合热分析方法,对膨胀阻燃低密度聚乙烯体系热降解过程的化学反应机理、成炭机理等进行探讨。