Electrophoresis can be an effective approach for depositing carbon nanotubes (CNTs) on the surface of carbon fiber (CF). Nevertheless, it has been rarely reported on polyphenylene sulfide (PPS) composites filled with CFs surface-modified by CNTs based on electrophoresis. In this study, we investigated the electrophoresis process conditions that can completely coat CF with multi-walled CNTs (MWCNTs) using self-manufactured electrophoresis equipment, and the enhancement of interfacial, electrical and flexural properties of PPS composites by introducing CFs coated with MWCNTs based on electrophoresis. In particular, interfacial shear strength (IFSS) of the PPS composites was measured by microbond tests and improved by about 41.7% due to the MWCNTs introduced on the surface of CFs. These enhancements were theoretically explained by an interface-modified CF-based micromechanical model. Introducing MWCNTs on the CF surface based on electrophoresis was demonstrated to be an effective method for improving the interfacial, electrical and flexural properties of PPS composites.

电泳可能是在碳纤维（CF）表面沉积碳纳米管（CNT）的有效方法。然而，很少有报道用基于电泳的碳纳米管表面改性的CF填充的聚苯硫醚（PPS）复合材料。在这项研究中，我们研究了使用自制的电泳设备可以用多壁CNT（MWCNT）完全覆盖CF的电泳工艺条件，以及通过引入涂有MWCNTs的CF来增强PPS复合材料的界面，电学和挠曲性能在电泳上。特别是，PPS复合材料的界面剪切强度（IFSS）通过微粘结测试进行了测量，并且由于在CFs表面引入了MWCNT，因此界面剪切强度提高了约41.7％。这些改进从理论上通过基于CF的界面微机械模型进行了解释。通过电泳在CF表面引入MWCNT被证明是一种改善PPS复合材料界面，电学和挠曲性能的有效方法。