Insensitive energetic materials are promising in the defense weapons field. However, energetic materials still suffer from great challenges and the concern about their safety limits their utilization. In this work, insensitive energetic explosive 3,3′-diamino-4,4′-azoxyfurazan/hexahydro-1,3,5-trinitro-1,3,5-triazine (DAAF/RDX) microspheres were fabricated by self-assembly method. Rod-like DAAF/RDX was prepared by mechanical ball milling for comparison. DAAF/RDX composites with different mass ratios (90:10, 80:20, and 70:30) were obtained. The morphologies and structures of as-obtained DAAF/RDX composites were characterized by scanning electron microscopy (SEM), powder x-ray diffraction (PXRD) and fourier transform infrared spectroscopy (FT-IR). The results showed that DAAF/RDX microspheres exhibited regular shaped microspheres with sizes from 0.5 to 1.2 μm. There was no crystal transition during the modification process. The thermal properties of as-obtained materials were then evaluated by differential scanning calorimetry (DSC) and materials studio software. DAAF/RDX microspheres showed an advanced decomposition peak temperature compared with rod-like DAAF/RDX. The binding energy and peak temperature values at zero β_i (T_P0) of DAAF/RDX (90:10) increased by 36.77 kJ/mol, 1.6 °C, and 58.11 kJ/mol, 12.3 °C compared to DAAF/RDX (80:20) and DAAF/RDX (70:30), indicating the better thermal stability of DAAF/RDX (90:10). The characteristic drop height (H₅₀) of DAAF/RDX (higher than 100 cm) composites was higher than that of raw RDX (25 cm), suggesting significant improvements in mechanical safety. The preparation of DAAF/RDX microspheres is promising for the desensitization of RDX and useful for the formation of other materials and future wide applications.

钝感含能材料在国防武器领域大有可为。然而，含能材料仍然面临着巨大的挑战，对其安全性的担忧限制了它们的利用。在这项工作中，通过自组装制造了不敏感的高能炸药 3,3'-diamino-4,4'-azoxyfurazan/hexahydro-1,3,5-trinitro-1,3,5-triazine (DAAF/RDX) 微球方法。通过机械球磨制备棒状 DAAF/RDX 以进行比较。获得了不同质量比（90:10、80:20和70:30）的DAAF/RDX复合材料。通过扫描电子显微镜 (SEM)、粉末 X 射线衍射 (PXRD) 和傅里叶变换红外光谱 (FT-IR) 对所获得的 DAAF/RDX 复合材料的形貌和结构进行了表征。结果表明，DAAF/RDX微球表现出规则形状的微球，尺寸从0. 5 至 1.2 微米。在改性过程中没有发生晶变。然后通过差示扫描量热法 (DSC) 和材料工作室软件评估所获得材料的热性能。与棒状 DAAF/RDX 相比，DAAF/RDX 微球显示出更高的分解峰值温度。β 为零时的结合能和峰值温度值与 DAAF/RDX (80:20) 和 DAAF/RDX (70) 相比，DAAF/RDX (90:10) 的_i ( T _P0 ) 增加了 36.77 kJ/mol，1.6 °C 和 58.11 kJ/mol，12.3 °C :30)，表明 DAAF/RDX (90:10) 具有更好的热稳定性。DAAF/RDX（高于100 cm）复合材料的特征跌落高度（H ₅₀）高于原始RDX（25 cm），表明机械安全性显着提高。DAAF/RDX 微球的制备有望用于 RDX 的脱敏，并有助于其他材料的形成和未来的广泛应用。