With the rapid development of infrared detection technology, the development of infrared stealth products has become an urgent requirement. Infrared stealth effect is affected by both temperature and infrared emissivity, but most of the previous studies focus on a single factor, which limits the effectiveness of the products. Herein, we prepared double-shell microcapsules (DSMs) with both temperature control and low infrared emissivity. It firstly uses eicosane as the phase change material (PCM) and melamine, urea and formaldehyde (MUF) as the shell material to form microcapsules. Then, polyaniline (PANI) is deposited on the surface of these microcapsules to form DSMs. The DSMs were measured to have a particle size concentrated at 1.484 μm, a latent heat of 155.1 J/g, a core content of 63.25% and an infrared emissivity as low as 0.722. After coating the DSMs onto polyester fabrics, the infrared emissivity of the coating has a little increase to 0.794, but impressively, the as prepared fabric can be cooled down by a maximum of 11.2 °C compared to the untreated fabric, and the temperature control process can last for 27 min, which is superior to similar products. Featured with temperature control by PCM and low emissivity by PANI, the infrared camera image shows that the fabric has an obvious infrared stealth effect, proving it is a great potential candidate in infrared stealth materials.

随着红外探测技术的飞速发展，研制红外隐身产品已成为迫切需求。红外隐身效果受温度和红外发射率的影响，但以往的研究大多集中在单一因素上，限制了产品的有效性。在此，我们制备了具有温度控制和低红外发射率的双壳微胶囊（DSM）。它首先以二十烷为相变材料（PCM），三聚氰胺、尿素和甲醛（MUF）为壳材料，形成微胶囊。然后，聚苯胺 (PANI) 沉积在这些微胶囊的表面以形成 DSM。测得 DSM 的粒径集中在 1.484 μm，潜热为 155.1 J/g，核心含量为 63.25%，红外发射率低至 0.722。将 DSM 涂覆到涤纶织物上后，涂层的红外发射率略有增加，达到 0.794，但令人印象深刻的是，与未经处理的织物相比，所制备的织物最多可冷却 11.2 °C，并且温度控制过程可持续27分钟，优于同类产品。该面料具有PCM控温、PANI低辐射等特点，红外摄像图像显示该面料具有明显的红外隐身效果，是一种极具潜力的红外隐身材料。优于同类产品。该面料具有PCM控温、PANI低辐射等特点，红外摄像图像显示该面料具有明显的红外隐身效果，是一种极具潜力的红外隐身材料。优于同类产品。该面料具有PCM控温、PANI低辐射等特点，红外摄像图像显示该面料具有明显的红外隐身效果，是一种极具潜力的红外隐身材料。