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采用模塑成型法制备氰酸酯树脂(CE)/纳米二氧化硅(nano-SiO2)复合材料,通过磨损率和摩擦系数测试、扫描电子显微镜(SEM)表征,分别考察了nano-SiO2及其经两种偶联剂KH-560和SEA-171表面处理后对CE摩擦学性能的影响.测试结果表明,经偶联剂表面处理后的nano-SiO2能够更加有效地改善CE的摩擦磨损性能,两种偶联剂相比,SEA-171的改性效果较好.SEM分析表明,不同性质的nano-SiO2形成的复合材料,其磨损方式主要表现为磨粒磨损,黏着磨损则随着nano-SiO2未表面处理、KH-560和SEA-171分别表面处理的顺序依此减轻.
Cyanate resin (CE) / nano-SiO2 composites were prepared by molding method. The wear rate, friction coefficient and scanning electron microscopy were used to characterize the nano-SiO2 and its The effects of surface treatment on the tribological properties of CE with two kinds of coupling agents KH-560 and SEA-171.The results show that the nano-SiO2 surface treated with the coupling agent can improve the friction and wear properties of CE more effectively, SEA-171 modified better than the two kinds of coupling agent.SEM analysis showed that the composite material formed by different properties of nano-SiO2, the wear mode is mainly abrasive wear, adhesive wear with the nano- SiO2 surface treatment, KH-560 and SEA-171, respectively, the order of surface treatment to reduce.