Premix membrane emulsification is a quick and efficient method to prepare emulsion. Pre-emulsion was prepared by dissolving 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (CL-20) and cellulose acetate butyrate (CAB) in ethyl acetate, and the mixture was added to an aqueous solution containing a surfactant. Then, the droplet uniform emulsion through the transmembrane was formed. The composites with the core–shell structure were obtained after evaporating the solvent. The results displayed that the morphological structure of CL-20 based composite could change from the dumbbell-shaped structure to spherical structure with an increase in the CAB content. Based on the impact sensitivity and thermal properties, the composite enhanced the safety. Meanwhile, a remarkable enhancement in the decomposition peak temperature (T_p0) and the critical temperature of the explosion (T_b) at a relatively low content of CAB (3 wt. %, 5 wt. % and 10 wt. %) was also noted. This approach provides a faster way for the design and preparation of polymer composites.

中文翻译：

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预混膜乳化法制备CL-20 / CAB高能复合微球

预混膜乳化是制备乳液的一种快速有效的方法。通过将2,4,6,8,10,12-六硝基-2,4,6,8,10,12-六氮杂异纤锌矿型结构烷烃（CL-20）和醋酸丁酸纤维素（CAB）溶解在乙酸乙酯中制备预乳液并将混合物加入到含有表面活性剂的水溶液中。然后，形成穿过膜的液滴均匀乳液。蒸发溶剂后可得到具有核-壳结构的复合材料。结果表明，随着CAB含量的增加，CL-20基复合材料的形貌结构可能从哑铃型变为球形。基于冲击敏感性和热性能，该复合材料增强了安全性。同时，分解峰温度（T_P0）和爆炸（T临界温度_b在CAB（3重量％，5重量％和10重量％）的相对低的含量）还指出。这种方法为聚合物复合材料的设计和制备提供了更快的方法。