Buckypapers (BPs) are porous films of randomly oriented carbon nanotubes (CNTs), and have potential applications in many fields. To get better performance, the properties of BPs are needed to be tuned to meet the demands of various applications. In this paper, the effects of annealing on tuning the Young’s modulus, the electrical conductivity, and the thermal conductivity of BPs were studied. Our results indicated that the Raman G/D ratio of BPs increased from 0.8 to 3.9 after annealed at 2800 ℃, which indicates that the quality of CNTs has been improved after annealing. The Young’s modulus of the annealed BPs increased linearly with the annealing temperature due to the improvement in the CNT quality, and an increase of 82 % was attained after annealed at 2800 ℃. Furthermore, the electrical conductivity and the thermal conductivity of BPs increased nonlinearly with the annealing temperature, and the increases after 2800 ℃ heat treatment are 29 % and 125 %, respectively. We attributed the increase in both electrical and thermal conductivities to the enhancement of inter-tube contact after the annealing.

Buckypapers（BPs）是随机取向的碳纳米管（CNTs）的多孔膜，在许多领域都有潜在的应用。为了获得更好的性能，需要调整BP的属性以满足各种应用程序的需求。在本文中，研究了退火对调整BP的杨氏模量，电导率和热导率的影响。我们的结果表明，在2800℃退火后，BPs的拉曼G / D比从0.8增加到3.9，这表明CNTs的质量在退火后得到了改善。退火后的BPs的杨氏模量由于CNT质量的提高而随退火温度线性增加，在2800℃退火后，其杨氏模量增加了82％。此外，BPs的电导率和热导率随退火温度呈非线性增长，在2800℃热处理后，BPs的电导率和热导率分别增加29％和125％。我们将电导率和导热率的提高归因于退火后管间接触的增强。