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采用湿法机械研磨法和真空冷冻干燥工艺,批量制备了纳米CuO,采用超声辅助-研磨法制备了纳米CuO/AP复合粒子。通过X射线衍射仪(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)表征了CuO和纳米CuO/AP复合粒子的结构及形貌,采用DSC-TG研究了纳米CuO/AP复合粒子的热分解性能。结果表明,制备的CuO颗粒粒径约为17nm,呈类球形;通过超声辅助-研磨法可使纳米CuO很好地分布在AP粒子表面。此外,质量分数2%的纳米CuO可使AP的高温分解峰温降低83℃,说明纳米CuO可作为一种添加剂,用于加速高氯酸铵的热分解。
Nanocrystalline CuO was prepared in batches by wet mechanical milling and vacuum freeze-drying process. Nanocrystalline CuO / AP composite particles were prepared by ultrasonic assisted milling. The structure and morphology of CuO and nano-CuO / AP composite particles were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The effects of nano-CuO / AP composite particles Thermal decomposition performance. The results show that the particle size of CuO particles is about 17 nm and spherical. The CuO nanoparticles can be well distributed on the surface of AP particles by ultrasonic assisted polishing. In addition, nano-CuO with mass fraction of 2% can lower the peak temperature of pyrolysis of AP by 83 ℃, indicating that nano-CuO can be used as an additive to accelerate the thermal decomposition of ammonium perchlorate.