This study primarily emphasizes the coating process of carbon nanotubes (CNTs) onto aramid fiber and investigates the subsequent effects of coating on the tribological, mechanical, and thermo-physical characteristics. CNTs and the aramid fibers are oxidized with the combination of sulphuric and nitric acids treatment. The chemical treatments resulted in an increased density of functional groups such as CO, COOH, and OH on the activated surface of the aramid fibers and CNTs. The tribological experiments involve four different normal loads (30 N, 40 N, 50 N, and 60 N), sliding frequencies (6 Hz, 8 Hz, 10 Hz, and 12 Hz), and temperatures (30 °C, 40 °C, 50 °C, and 60 °C). Each experiment runs for 20 min, using a fixed stroke length of 1.5 mm. The worn surfaces are analyzed using SEM images. It was observed that the CNTs-coated aramid fiber enhances the mechanical interlocking between the fibers and the matrix material, due to which the specific wear rate was reduced by 32.41 %, and the tensile strength, modulus, hardness, and thermal conductivity were increased by 23.3 %, 22.9 %, 27.27 %, and 36.56 % respectively. The friction coefficient increases with the increase of the normal load, while it decreases with the rise in temperature or sliding frequency.

本研究主要强调碳纳米管（CNT）在芳纶纤维上的涂层过程，并研究涂层对摩擦学、机械和热物理特性的后续影响。碳纳米管和芳纶纤维通过硫酸和硝酸处理的结合被氧化。化学处理导致芳纶纤维和碳纳米管的活化表面上的官能团密度增加，例如CO、COOH和OH。摩擦学实验涉及四种不同的法向载荷（30 N、40 N、50 N 和 60 N）、滑动频率（6 Hz、8 Hz、10 Hz 和 12 Hz）和温度（30 °C、40 °C） 、50°C 和 60°C）。每个实验运行 20 分钟，使用 1.5 毫米的固定行程长度。使用 SEM 图像分析磨损表面。结果表明，碳纳米管涂覆的芳纶纤维增强了纤维与基体材料之间的机械联锁，比磨损率降低了32.41%，拉伸强度、模量、硬度和导热系数提高了分别为 23.3%、22.9%、27.27% 和 36.56%。摩擦系数随法向载荷的增大而增大，随温度或滑动频率的升高而减小。