In this work, carbon fibers (CFs) were modified by electrodeposition Ni, and the mechanical properties as well as the electrical properties of Ni-coated carbon fibers (Ni-CFs) reinforced rigid polyurethane (RPU) composites were evaluated. It was found that the strength and toughness of RPU composites were both significantly improved. It was remarkable that the tensile and the impact strength of Ni-CFs/RPU composites were increased by 30.0% and 100.0%, respectively. The results of SEM and DMA analysis indicated the positive effects of Ni coating on the interfacial bonding between carbon fibers and RPU matrix. The electrical conductivity of the materials was increased from 1.01 × 10^–15 S/m (pure RPU) to 1.53 × 10^–9 S/m (Ni-CFs/RPU composites).

在这项工作中，碳纤维 (CFs) 通过电沉积 Ni 改性，并评估了 Ni 包覆碳纤维 (Ni-CFs) 增强刚性聚氨酯 (RPU) 复合材料的机械性能和电性能。发现RPU复合材料的强度和韧性均得到显着提高。值得注意的是，Ni-CFs/RPU 复合材料的拉伸强度和冲击强度分别提高了 30.0% 和 100.0%。SEM 和 DMA 分析结果表明 Ni 涂层对碳纤维和 RPU 基体之间的界面结合有积极影响。材料的电导率从 1.01 × 10 ^–15 S/m（纯 RPU）增加到 1.53 × 10 ^–9 S/m（Ni-CFs/RPU 复合材料）。