碳纳米管/石墨/碳纤维增强聚酰亚胺树脂复合材料的摩擦磨损性能研究

摘要

In the present paper, either graphite (Gr) or carbon nanotubes (CNTs), or both of them were incorporated into carbon fiber reinforced copolyimide (CFRP) composites, preparing by a dip-coating and heat molding process, the tribological behaviors of the resulting composites were studied by using a block-on-ring arrangement. Experimental results indicated that the optimal Gr was more beneficial than CNTs inimproving the tribological properties of the CFRP composites when they were singly added. Due to a synergistic effect between them. the friction and wear behavior of the CNTs-filled CFRP composites were improved further when Gr was added.%在本文中,通过浸涂和热成型工艺做准备,将石墨(GR)或碳纳米管(CNTs),或把两者一起结合在纳入碳纤维增强聚酰亚胺(CFRP)复合材料,利用块上环排列方法研究复合材料的摩擦磨损性能.实验结果表明,当它们单独使用时,理想型石墨比碳纳米管更有利于提高碳纤维增强塑料复合材料的摩擦学性能.值得注意的是,加入石墨时,碳纳米管填充碳纤维增强塑料复合材料的摩擦磨损性能进一步提高了,表明它们之间存在协同效应.