目的 制备可适用于SLA型3D打印机的隐身功能油墨，并研究油墨性能、3D打印样品的力学性能和隐身性能(吸波性能)。方法 以光敏树脂作为树脂连接料，加入不同含量的MWNTs/PPy/Fe3O4复合材料，得到适用于SLA型3D打印机的隐身功能油墨，并进行流变性能、分散性能等测试。3D打印制备测试样品，进行力学性能、电磁性能和隐身性能分析。结果 不同电磁吸收剂含量对隐身功能油墨的黏度、分散性有较大影响，对表面张力影响较小。吸收剂质量分数为0.4%的3D打印样品力学性能和隐身性能都较好，最大反射损耗为−23.36 dB。结论 本研究制备的隐身功能油墨满足SLA型3D打印机使用要求，打印的材料隐身性能良好。

The work aims to prepare stealth ink suitable for SLA 3D printer, and study the ink performance and the mechanical properties and stealth performance (microwave absorbing performance) of 3D printed samples. Photosensitive resins were used as ink binder and different contents of MWNTs/PPy/Fe3O4 composite materials were added to obtain stealth ink suitable for SLA 3D printer. The rheological properties and dispersion of the ink were tested. Test samples were prepared by 3D printing and their mechanical, electromagnetic, and stealth properties were analyzed. The content of different electromagnetic absorbers had a significant impact on the viscosity and dispersion of stealth ink, but had a relatively small impact on surface tension. The 3D printed sample with an absorbent content of 0.4 wt.% had good mechanical and stealth properties, with a maximum reflection loss of –23.36 dB. In conclusion, the stealth ink prepared in this study meets the requirements of SLA 3D printer, and the printed material has good stealth performance.