玄武岩纤维(BF)增强聚丙烯(PP)复合材料体系中,引入了聚苯乙烯(PS)与聚丙烯酸羟乙酯(PHEA)的嵌段共聚物大分子偶联剂(PS-b-PHEA),以改善复合材料的界面性能。结果表明:通过嵌段共聚物PS-b-PHEA对复合材料改性,一方面能够使玄武岩纤维与PP基体具有良好的界面黏结,另一方面能够在界面处形成柔性层,松弛界面热应力,迅速分散外加载荷,吸收外力的能量,实现复合材料的增强增韧。 In the basalt fiber (BF) reinforced polypropylene (PP) composite system, a block copolymer macromolecule coupling agent (PS-b-PHEA) of polystyrene (PS) and polyhydroxyethyl acrylate (PHEA) , To improve the interfacial properties of composites. The results showed that the PS-b-PHEA modified composite could not only make the basalt fiber and PP matrix have good interfacial adhesion, but also form the flexible layer at interface to relax the thermal stress of interface, Quickly disperse the applied load and absorb the energy of the external force to enhance and toughen the composite material.