An effective way to enhance the interfacial properties of carbon fiber reinforced polymer composite (CFRPs) was proposed by preparing graphene oxide (GO)/carbon fiber (CF) hybrid fibers through electrophoretic deposition. The influence of different deposition parameters on the microstructure of GO/CF hybrid fibers were synthetically investigated in order to understand the micro-configuration and bonding mechanism. Note that GO deposition was highly effective in adjusting fiber surface physiochemical characteristics and constructing a strengthened interface. When utilizing a 20 V–15 min deposition technology under alkalescent condition (pH = 10), the introduction of GO on CF surface was feasible to toughen CFRPs, exhibiting substantial interfacial shear strength and interlaminar shear strength improvements of 14.8% and 37.3%, respectively. Meanwhile, three micro-configuration models were proposed to categorize the bonding mechanism of GO/CF hybrid fibers, namely, ‘Grafting’, ‘Coating’ and ‘Plastering’ deposition. Overall, the high mechanical performance achieved in this work are comparable or better than those of many previously reported researches.

通过电泳沉积制备氧化石墨烯（GO）/碳纤维（CF）杂化纤维，提出了一种增强碳纤维增强聚合物复合材料（CFRPs）界面性能的有效方法。为了理解其微观结构和结合机理，综合研究了不同沉积参数对GO / CF杂化纤维微观结构的影响。请注意，GO沉积在调节纤维表面的理化特性和构建增强的界面方面非常有效。当在碱性条件下（pH = 10）使用20 V–15分钟的沉积技术时，在CF表面引入GO可以增强CFRP的韧性，其界面剪切强度和层间剪切强度分别提高了14.8％和37.3％。 。同时，提出了三种微观构型模型，对GO / CF杂化纤维的结合机理进行了分类，即“嫁接”，“涂层”和“抹灰”沉积。总体而言，这项工作所获得的高机械性能与许多先前报道的研究相媲美或更好。