建立了以Caterpillar微型混合器为核心的微反应系统，并在该系统中利用物理结晶法制备纳米1，3，5-三氨基-2，4，6-三硝基苯（TATB），在浓DMSO/碱-酸体系下进行重结晶。结果表明，在DMSO/碱-酸体系下，溶剂与非溶剂流量分别为2 mL/min和3 mL/min、停留时间为16.96 s、硝酸的质量分数为2%时，获得的最小粒径D50为406 nm，其离散度为0.68，小于文献中报道的5 μm的平均粒径。

A micro-reaction system with Caterpillar micromixer as the core is established,in which nano TATB (1,3,5-triamino-2,4,6-trinitrobenzene) is prepared by physical crystallization.The prepared TATB is re-crystallized in DMSO/alkali-acid system.Results show that TATB with the minimum particle size D50=406 nm is obtained when the flow of solvent is 2 mL·min^-1,the flow of nonsolvent is 3 mL·min^-1,the residence time is 16.96 s and the mass concentration of nitric acid is 2% in DMSO/Base-acid system.The dispersion degree of TATB particle sizes is 0.68 and its average particle size is smaller than the reported 5 μm in the literatures.

刘康(1993-),男,硕士研究生,研究方向为微通道制备纳米含能材料,519759299@qq.com