含超细高氯酸铵核-壳型复合材料的制备

Preparation of Core-Shell Composite Materials Containing Ultra-Fine AP

用超临界流体沉积技术中的SA S法制备了超细HM X,AP,CL-20以及A l-FPM 2602核-壳型复合材料。通过氟橡胶FPM 2602在超细HM X,AP,CL-20和A l混合物表面的沉积,达到对混合物进行包覆改性的目的。吸湿性试验表明,该核-壳型复合材料的抗湿能力得到明显提高。对该超细核-壳型复合材料进行了撞击感度、火焰感度、爆发点测试。结果表明,与未包覆的混合物相比,该超细核-壳型复合材料的性能有了一定的提高。超临界流体沉积技术中的SA S法是制备含水溶性超细含能复合材料的绿色环保方法。

The ultra-fine HMX, AP, CL-20 and Al-FPM2602 core shell composite materials were prepared by supercritical anti-solvent （SAS） method, Mixtures of ultra-fine HMX, AP,CL-20 and AI were coated by FPM2602 precipitated on the surface of mixtures. Hygroscopic test of the core-shell composite materials coated with and without FPM2602 shows the anti-hydroscopicity of the core-shell composite materials have obviously improved, which indicates that there is FPM2602 on the surface of the mixtures. The impact sensitivity, flame sensitivity and explosion temperature of five seconds delay of the core shell composite materials were carried out, The results show that compared with uncoated materials, the properties of the core shell composite materials were improved to a certain extent, SAS technology is an effective method of preparing the ultra fine composite materials without any pollution.