The micro-scale detonation sequence prepared by the inkjet printing using all-liquid 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazawurtzitan (CL-20)-based energetic inks enables the micro-space fine-scale assembly and stable propagation of detonation. However, the easy crystallization and high mechanical sensitivity of all-liquid CL-20 limit its applications to the microelectromechanical system (MEMS)-based pyrotechnics. This study developed a simple micro-nano CL-20-based polyvinyl alcohol (PVA) colloidal suspension suitable for inkjet printing to control the crystal structures and mechanical sensitivities of energetic composites. The results show that the CL-20-based multilayer films formed by inkjet printing had dense microstructures, with the porosity decreasing to 13.81% and ε-type crystals. Compared with micro-nano CL-20 particles, the impact and friction sensitivities of CL-20-based multilayer films were reduced by 100% and 122%, respectively, and their apparent activation energy increased by 44.7 kJ mol⁻¹, thus effectively improving the safety performance of micro-nano structured explosive agents. Therefore, CL-20-based multilayer films have great potential for application to the micro-scale detonation sequence of MEMS.

采用全液体2,4,6,8,10,12-六硝基-2,4,6,8,10,12-六氮杂伍兹坦（CL-20）基能量喷墨打印制备微尺度爆炸序列墨水能够实现微空间精细组装和爆炸的稳定传播。然而，全液体CL-20的易结晶性和高机械敏感性限制了其在基于微机电系统（MEMS）的烟火技术中的应用。本研究开发了一种简单的微纳CL-20基聚乙烯醇（PVA）胶体悬浮液，适用于喷墨打印，以控制含能复合材料的晶体结构和机械敏感性。结果表明，喷墨打印形成的CL-20基多层薄膜具有致密的微观结构，孔隙率降至13.81%，且具有ε型晶体。与微纳米CL-20颗粒相比，^-1，从而有效提高微纳结构炸药的安全性能。因此，CL-20基多层薄膜在MEMS微尺度爆炸序列中具有巨大的应用潜力。