PE-HD/APP复合材料总体热稳定性作用与阻燃性能关系

采用聚磷酸铵（APP）对高密度聚乙烯（HDPE）进行填充改性，制备出APP不同含量的HDPE阻燃复合材料。通过水平-垂直燃烧仪与氧指数测定仪测试材料的阻燃性能，热重分析实验与复合材料总体热稳定性作用（OSE）评价材料的热稳定性能，研究材料总体热稳定性作用与阻燃性能间的关系。结果表明：OSE法能较好地衡量添加剂用量对复合材料热稳定性能影响情况，增加APP填充量有利于提高HDPE复合材料总体热稳定性与阻燃性能，提高HDPE复合材料的总体热稳定性有利于改善其阻燃性能。

Study on the Relationship between Flame-retardant and the Overall Stabilization Effect of High Density Polyethylene Filled with Ammonium Polyphosphate

The flame retardant modification of High Density Polyethylene（HDPE）was made by filling with ammonium polyphosphate（APP）,prepared in different APP content of composite materials. The flame retardant effects of APP on the prepared composite were studied by means of limiting oxygen index (LOI) and horizontal-vertical burning .The test methods of thermogravimetric analysis (TGA) and the overall stabilization effect (OSE) were applied to measure the thermal stability, analysed the relation between thermal stability and flame retardant . The results indicated that the measure of OSE can commendably measure the overall thermal stability of composite. And the addition of suitable content of APP not only improved the flame retardant of the composite, but also advanced the thermal stability. Enhancing the overall thermal stability of HDPE fire-retardant composite can improve its flame retardant.