Author/Authors :
Zi Ping Wu، نويسنده , , Xiang Liang Huang، نويسنده , , Bei Li Zhang، نويسنده , , Yan Hong Yin، نويسنده , , Ye Sheng Li، نويسنده , , Yi Sheng Chen، نويسنده , , Jian Gao Yang، نويسنده , , Yong Liu، نويسنده , , Qian Feng Xu، نويسنده , , Hong Wei Dong، نويسنده , , Wu Bin، نويسنده ,
Abstract :
The tensile strength and elongation of carbon nanotube (CNT) macro-films with different thicknesses were measured from 150 °C to −50 °C. The microstructural deformation of the CNT macro-films during stretching was detected by scanning electron microscopy. The CNT bundles deposited nanoparticles in the macro-films entangled with one another and formed a highly porous network. Thus, the CNTs rearranged along the direction of the applied force. This unique rearrangement ability during stretching enabled the CNT macro-films to maintain their high plasticity even at the low temperature of −50 °C. The tensile strength of the CNT macro-films also monotonically increased with decreased temperature. The fabricated CNT macro-films with special low-temperature mechanical properties have potential applications in low-temperature engineering and other related fields.
