Study on the thermal and mechanical properties of two‐dimensional d‐Ti3C2Tx filled polyamide 66 nanocomposite

Abstract Two‐dimensional (2D) transition‐metal carbides, nitrides, and carbonitrides exhibit excellent thermal, mechanical, and electrical properties, and MXene displays good advantages in improving the mechanical properties of composites. In this study, the injection molding method is employed to introduce d‐Ti 3 C 2 T x MXene into the polyamide 66 matrix, yielding a d‐Ti 3 C 2 T x /PA66 nanocomposite. The tensile strength, flexural strength, Young's modulus, and hardness of d‐Ti 3 C 2 T x /PA66 nanocomposites are higher than that of pure PA66, owing to the high strength of the d‐Ti 3 C 2 T x nanosheets, good interfacial bonding, and stress transfer between the PA66 matrix and d‐Ti 3 C 2 T x nanofiller. TGA and DMA results revealed that the addition of d‐Ti 3 C 2 T x into the PA66 matrix improves the T g , Es, creep resistance, and recovery properties, as well as the thermal stability of PA66 in an oxidizing atmosphere.