聚丙烯废弃物/锑尾矿渣复合材料的研究

Research on Polypropylene Waste/Antimony Tail Slag Composite Materials

以聚丙烯(PP)废弃物与锑尾矿渣为原料,通过挤出注塑成型工艺制得PP废弃物/锑尾矿渣复合材料,对锑尾矿渣改性处理前后的微观结构及将其填充到PP废弃物后复合材料的微观结构进行观察,探讨了改性锑尾矿渣用量对复合材料力学性能与维卡软化温度的影响。结果表明:当改性锑尾矿渣用量为10%时,复合材料的冲击强度、拉伸强度和弯曲强度分别为42.9 k J/m2、29.8 MPa和45.2 MPa;相同填充量的改性锑尾矿渣对复合材料力学性能的提高优于未改性锑尾矿渣;锑尾矿渣用量增加可有效提高复合材料的维卡软化温度,使其具有一定的耐热性。

Taking polypropylene（PP） waste and antimony tail slag as raw material, PP waste/antimony tailings composite material was prepared by extrusion injection molding process, and the microstructure of antimony tail slag before and after modification were observed, and the microstructure of the composites filled with PP waste was observed. The effect of the amount of modified antimony tail slag on the mechanical properties of the composites and the Vicat softening temperature was discussed. The results show that when the adding amount of modified antimony tail slag is 10%, the impact strength, the tensile strength and bending strength of composite material were 42.9 k J/m2, 29.8 MPa and 45.2 MPa respectively. The mechanical properties of the composite materials with the same filler content of modified antimony tailings are better than those of the unmodified antimony tailings. The increase of the content of antimony tail slag can effectively improve the Vicat softening temperature, which has a certain heat resistance.