采用熔融共混法制备了聚丙烯/废旧玻璃钢粉(PP/WFRP)复合材料,探讨了WFRP含量对复合材料力学性能、结晶行为及热性能的影响。力学性能测试结果表明,随着WFRP用量的增加,复合材料的弯曲强度和邵氏硬度明显升高,而拉伸强度逐渐下降。X射线衍射实验表明,加入WFRP能够诱导β晶生成,降低PP的结晶度。热重分析表明,WFRP的加入可以有效提高PP的热稳定性。 The PP / WFRP composites were prepared by melt blending method. The effects of WFRP content on the mechanical properties, crystallization behavior and thermal properties of the composites were investigated. The mechanical properties test results show that with the increase of WFRP dosage, the flexural strength and Shore hardness of the composites increase obviously, while the tensile strength decreases gradually. X-ray diffraction experiments show that adding WFRP can induce β crystal formation and reduce the crystallinity of PP. Thermogravimetric analysis showed that the addition of WFRP can effectively improve the thermal stability of PP.