聚丙烯（PP）塑料的性能在光照和热的作用下会急剧下降。PP阻燃性能较差，因此限制其应用领域。为解决上述问题，采用聚对苯甲酰胺芳纶纤维（ANF）作为填料制备了PP/ANF复合材料。ANF优良的耐高温性能以及抗老化性能可以有效地提高复合材料的阻燃性能以及抗老化性能。结果表明：ANF的添加量为6%的PP/ANF-3样品具有最佳的热稳定性。力学性能方面，PP/ANF-3的抗拉强度和弯曲强度分别达到37.8 MP和49.3 MPa，在所有样品中达到最大值。阻燃性能方面，PP/ANF-3的极限氧指数（LOI）为29.1%，并且表现出优异的燃烧性能，具有较好的燃烧安全性。抗老化实验表明，PP/ANF-3表现出最佳的白度保持率以及最低的质量损失率，并且老化后LOI仅下降1.6%，具有优异的抗老化性能。研究表明，ANF可以有效地用作PP填料，从而提高复合材料的抗老化性能以及阻燃性能。

The properties of p olypropylene (PP) plastics under the action of light and heat will be greatly reduced. The flame retardancy of PP is relatively poor, thus limiting its application fields. In order to solve the above problems, PP/ANF composites were prepared by using poly (p-benzamide) aramid fiber (ANF) as filler. The excellent high temperature resistance and thermal aging resistance of ANF can effectively improve the flame retardancy and aging resistance of the composites. The results show that the PP/ANF-3 sample with an ANF addition of 6% exhibits the best thermal stability. In terms of mechanical properties, the tensile strength and bending strength of PP/ANF-3 reached 37.8 MPa and 49.3 MPa respectively, which reached the maximum value in all the samples. In terms of flame retardancy, the limited oxygen index (LOI) of PP/ANF-3 is 29.1%, and it shows excellent combustion performance and has good combustion safety. Anti-aging experiments show that PP/ANF-3 exhibits the best whiteness retention rate and the lowest mass loss rate, and the LOI only decreased by 1.6% after aging, which has excellent anti-aging properties. The study indicates that ANF can be effectively used as PP filler to improve its anti-aging properties and flame retardancy.