To fabricate continuous carbon fiber (CF)/polyamide (PA 6) thermoplastic composites with high strength and stiffness, combinational treatments of liquid phase oxidation, coupling agent, and coating were adopted to improve the surface activity of CF fabric and interfacial bonding with PA 6 matrix. The mechanical properties, dynamic thermomechanical properties, microstructure, and hydrothermal aging behavior of the CF/PA 6 composites were studied. The XPS results showed the N, O, and Si elements as well as the C–O, CO, and C–Si groups were significantly increased on the CF surface, indicating the improvement of chemical activity and KH550 effectively grafted. The tensile strength significantly increased from 396 MPa to 480 MPa, by 21.2%, and Young's modulus increased from 38.6 GPa to 47.9 GPa, by 24.1%, respectively. The result of the damp heat aging test in 240 h showed the retention rate of flexural strength and ILSS were 66% and 67%, respectively.

为了制造具有高强度和刚度的连续碳纤维 (CF)/聚酰胺 (PA 6) 热塑性复合材料，采用液相氧化、偶联剂和涂层的组合处理来提高 CF 织物的表面活性和与 PA 6 的界面结合矩阵。研究了 CF/PA 6 复合材料的力学性能、动态热机械性能、微观结构和水热老化行为。XPS 结果显示 N、O 和 Si 元素以及 C–O、CO和C-Si基团在CF表面显着增加，表明化学活性的提高和KH550的有效接枝。拉伸强度从 396 MPa 显着增加到 480 MPa，增加了 21.2%，杨氏模量从 38.6 GPa 增加到 47.9 GPa，增加了 24.1%。240 h的湿热老化试验结果表明，弯曲强度和ILSS的保持率分别为66%和67%。