聚苯硫醚/四氧化三铁复合材料的力学和磁性能

Mechanical and magnetic properties of poly(phenylene sulfide)/Fe_3O_4 composites

采用熔融共混的方法制备了聚苯硫醚(PPS)/四氧化三铁(Fe3O4)复合材料,考察了复合材料的形态、力学性能及磁性能。结果表明,均匀分散的Fe3O4粒子与PPS基体界面结合紧密;与纯PPS相比,复合体系在拉伸和弯曲强度显著提高的同时,冲击性能也有所改善;但过多的Fe3O4填充量反而不利于材料力学性能的提升。此外,复合体系的磁性仅依赖于Fe3O4的含量,而与Fe3O4的分散程度无关;因此,要获得既具有良好力学性能,又具有较高磁性的复合材料,30%(质量)左右的Fe3O4填充量较为适宜。

Poly（phenylene sulfide）（PPS）/ferrosoferric oxide（Fe3O4）composites were prepared via melt mixing.The morphology,mechanical and magnetic properties of PPS/Fe3O4 composites were studied.The results indicated that Fe3O4 particles were well dispersed in the PPS matrix.In contrast to pure PPS resin,both tensile strength and bending strength of the composites increased significantly,and impact strength was also improved;whereas overloading Fe3O4 decreased the mechanical properties.In addition,the magnetization of the composites was only dependent on the Fe3O4 loading.Therefore,addition of about 30%（mass） loading level of Fe3O4 was appropriate to obtain PPS magnetic composites with both good mechanical properties and high magnetization.