Various stretching and heating treatments were conducted on a carbon nanotube (CNT) film, so as to transfer the excellent properties of individual CNTs into a useful material. It shows that the wet-stretching improves the tensile strength and modulus to 2.3 and 5.9 times of the CNT film treated by traditionally dry stretching. Inspired by carbonization process of carbon fiber, tension force was further applied on the CNT film during subsequent heat treatment. Therefore, tensile strength and modulus of the CNT film are dramatically improved to 6.3 and 39.7 times respectively comparing with the as-prepared film. The tensile modulus reaches up to 127.1 GPa, far beyond most reported moduli of nanocarbon-based films and papers. Herein, the higher tensile moduli of the post-treated CNT films the smaller fracture elongation. Moreover, the post-treated CNT film manifests stable piezoresistive behavior with the gauge factor of 13.2, indicating of good sensitivity of the network.

在碳纳米管（CNT）膜上进行了各种拉伸和热处理，以将单个CNT的优异性能转化为有用的材料。结果表明，湿拉伸将拉伸强度和模量提高到传统干拉伸处理后的CNT膜的2.3和5.9倍。受碳纤维碳化过程的启发，在随后的热处理过程中，张力进一步施加在CNT膜上。因此，与所制备的膜相比，CNT膜的拉伸强度和模量分别显着提高至6.3和39.7倍。拉伸模量高达127.1 GPa，远远超出了大多数报道的基于纳米碳的薄膜和纸张的模量。在此，后处理的CNT膜的拉伸模量越高，则断裂伸长率越小。而且，