论文部分内容阅读
采用简单的旋涂、喷涂等方法,制备了一种由可溶性聚苯胺为主体电致变色智能热控器件。该器件的基底为聚酯,固体电解质为锂盐/聚丙烯腈。通过电切换调控,该器件发射率能够在0.46-0.75内调控,且红外光谱反射率变化大于38%。研究了厚度、预掺杂酸种类、浓度等对聚苯胺活性层发射特性的影响;考察了导电高分子聚苯胺层厚度、电切换电压等因素对涂层体系发射率调控的影响。结果表明发射率的调控范围与电化学还原的深度密切相关,通过调节材料厚度、掺杂酸种类等可有效提高发射率调控范围。该导电高分子电致变色智能热控涂层在航天器热控制方面展示了良好的应用前景。
Using a simple spin-coating, spraying and other methods, prepared by a soluble polyaniline as the main electrochromic intelligent thermal control device. The device’s base is polyester and the solid electrolyte is lithium salt / polyacrylonitrile. Through the electrical switching control, the device emissivity can be controlled within 0.46-0.75, and the infrared spectral reflectance changes more than 38%. The effects of thickness, pre-doping acid species and concentration on the emission properties of polyaniline active layer were investigated. The effects of polyaniline layer thickness, electric switching voltage and other factors on the emissivity of the coating system were investigated. The results show that the control range of emissivity is closely related to the depth of electrochemical reduction. By adjusting the thickness of the material and the doping acid species, the range of emissivity control can be effectively improved. The conductive polymer electrochromic intelligent thermal control coating has shown a good application prospect in spacecraft thermal control.