溶剂-反溶剂交替法制备大颗粒圆滑ε-CL-20
发布时间：2019-04-19 06:58
【摘要】：将六硝基六氮杂异伍兹烷(CL-20)的滤液加入到反溶剂中,析出少量的晶体,起到类似"晶种"的作用,二次快加大量反溶剂使析出的晶体沿"晶种生长"以制备大颗粒圆滑ε-CL-20。分析了反溶剂体积和搅拌速率对ε-CL-20形貌和粒度的影响。对结晶后的ε-CL-20性能进行了表征。结果表明,与原料相比,采用这种方法制备出的ε-CL-20的晶体颗粒,具有表面圆滑、无尖锐棱角、高致密、粒度分布窄的特点。ε-CL-20的特性落高H_(50)从25 cm提高到40 cm,摩擦感度从96%降到32%,密度从2.0367 g·cm~(-3)提高到2.0384 g·cm~(-3)。
[Abstract]:The filtrate of CL-20 was added to the antisolvent and a small amount of crystals were precipitated, which acted as "seed". Growth of precipitated crystals along "seed" by adding a large amount of Anti-solvent in the second time to prepare large particles of smooth 蔚-CL-20. The effects of antisolvent volume and stirring rate on the morphology and particle size of 蔚-CL-20 were analyzed. The properties of 蔚-CL-20 after crystallization were characterized. The results show that the crystal particles of 蔚-CL-20 prepared by this method have the advantages of smooth surface, no sharp angle and high density, compared with the raw materials. The characteristic height H50 of 蔚-CL-20 increases from 25 cm to 40 cm, and the friction sensitivity decreases from 96% to 32%, and the density increases from 2.0367 g cm~ (- 3) to 2.0384 g cm~ (- 3).
【作者单位】： 北京理工大学机电学院;
【基金】：国家自然科学基金资助(11172042)
【分类号】：TQ560.1
本文编号：2460711
[Abstract]:The filtrate of CL-20 was added to the antisolvent and a small amount of crystals were precipitated, which acted as "seed". Growth of precipitated crystals along "seed" by adding a large amount of Anti-solvent in the second time to prepare large particles of smooth 蔚-CL-20. The effects of antisolvent volume and stirring rate on the morphology and particle size of 蔚-CL-20 were analyzed. The properties of 蔚-CL-20 after crystallization were characterized. The results show that the crystal particles of 蔚-CL-20 prepared by this method have the advantages of smooth surface, no sharp angle and high density, compared with the raw materials. The characteristic height H50 of 蔚-CL-20 increases from 25 cm to 40 cm, and the friction sensitivity decreases from 96% to 32%, and the density increases from 2.0367 g cm~ (- 3) to 2.0384 g cm~ (- 3).
【作者单位】： 北京理工大学机电学院;
【基金】：国家自然科学基金资助(11172042)
【分类号】：TQ560.1
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