Shapes of coal tar pitch modified were observed through SEM and thermal behavior was analyzed with Thermo-Gravimetric Analysis (TGA).

采用扫描电镜观察改性煤沥青的形貌；采用热解重量分析仪分析改性沥青的热行为。

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Thermal gravimetric analysis(TGA), FTIR, Limited oxygen index(LOI) and vertical firing test are used to research the flame retardancy of the intumescent flame retardant on PP.

采用热重分析（ TGA）、红外光谱分析（ FTIR）、 氧指数测定和垂直燃烧实验，研究了所合成的膨胀型阻燃剂对聚丙烯的阻燃作用。

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