A floating-catalyst spray pyrolysis method was used to synthesize carbon nanotube (CNT) thin films. With the use of ammonium chloride as a pore-former and epoxy resin (EP) as an adhesive, CNT/EP composite films with a porous structure were prepared through the post-heat treatment. These films have excellent thermal insulation (0.029–0.048 W·m⁻¹·K⁻¹) at the thickness direction as well as a good thermal conductivity (40–60 Wm⁻¹·K⁻¹) in the film plane. This study provides a new film material for thermal control systems that demand a good thermal conductivity in the plane but outstanding thermal insulation at the thickness direction.

浮式催化剂喷雾热解法用于合成碳纳米管（CNT）薄膜。使用氯化铵作为成孔剂，并使用环氧树脂（EP）作为粘合剂，通过后热处理制备了具有多孔结构的CNT / EP复合膜。这些膜在厚度方向上具有优异的绝热性（0.029–0.048 W·m ^-1 ·K ^-1），并且在膜平面中具有良好的导热性（40–60 Wm ^-1 ·K ^-1）。这项研究为热控制系统提供了一种新的薄膜材料，该材料需要在平面内具有良好的导热性，但在厚度方向上具有出色的隔热性。