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采用熔融共混的方法制备了玄武岩纤维(BF)增强聚苯硫醚(PPS)复合材料。考察了BF用量对PPS/BF复合材料力学性能、热性能和结晶性能的影响,以及硅烷偶联剂和填料种类对PPS/BF复合材料力学性能的影响。结果表明:复合材料的拉伸强度、弯曲强度、冲击强度、负荷变形温度和分解温度均随BF用量的增加而提高;硅烷偶联剂KH560的加入可以改善复合材料的力学性能。在PPS/BF体系中添加玻璃纤维可以进一步提高材料的力学强度;在PPS/BF体系中添加甲基丙烯酸缩水甘油酯接枝乙烯-辛烯共聚物(POE-g-GMA)可以提高复合材料的无缺口冲击强度。通过差示扫描量热(DSC)测试发现,BF具有异相成核作用,可以促进树脂结晶并提高结晶速率。
The basalt fiber (BF) reinforced polyphenylene sulfide (PPS) composites were prepared by melt blending. The effects of BF content on the mechanical properties, thermal properties and crystallization properties of PPS / BF composites were investigated. The effects of silane coupling agents and filler types on the mechanical properties of PPS / BF composites were also investigated. The results show that the tensile strength, flexural strength, impact strength, load deformation temperature and decomposition temperature of the composites increase with the increase of BF content. The addition of silane coupling agent KH560 can improve the mechanical properties of the composites. Addition of glass fiber to PPS / BF system can further improve the mechanical strength of the material; addition of glycidyl methacrylate grafted ethylene-octene copolymer (POE-g-GMA) to PPS / BF system can improve the mechanical properties of the composites Unnotched impact strength. By differential scanning calorimetry (DSC) test, it is found that BF has heterogeneous nucleation, which can promote the crystallization of resin and increase the crystallization rate.