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采用硅烷偶联剂KH550处理玻璃纤维,通过熔融共混法制备了尼龙6(PA6)/玻璃纤维(GF)复合材料,对复合材料表面处理前后的力学性能、熔体流动速率(MFR)和断面形貌进行了表征。结果表明:随着GF含量的增加,PA6/GF复合材料拉伸强度和缺口冲击强度均先增大后减小;添加同样含量的GF时,采用偶联剂处理后PA6/GF的拉伸强度和缺口冲击强度增大,MFR减小,扫描电镜观察结果表明,偶联剂KH550有效地改善了GF与PA6间的界面结合。
The glass fiber was treated with silane coupling agent KH550, and the nylon 6 (PA6) / glass fiber (GF) composite was prepared by melt blending method. The mechanical properties, melt flow rate (MFR) The morphology was characterized. The results show that the tensile strength and notched impact strength of PA6 / GF composites increase first and then decrease with the increase of GF content. The tensile strength of PA6 / GF composites treated with coupling agent increases with the addition of GF And notched impact strength increased, MFR decreased, scanning electron microscopy showed that the coupling agent KH550 effectively improve the interface between GF and PA6 binding.