【摘要】 采用溶剂 非溶剂法制备出了以纳米CuO为核、AP为壳的CuO/AP复合粒子。TEM、XRD及AA的测试结果表明,复合粒子中只有CuO和AP存在,且AP包覆于CuO的外表,而DSC对复合粒子催化性能的测试结果表明,纳米CuO/AP复合粒子中AP的高温分解峰温度下降到101℃,较CuO AP的简单混合物提前了5.64℃,而且复合粒子中AP的低温分解峰消失,在完成由斜方晶系向立方晶系的晶型转变后,便直接进入了高温分解,这为改善推进剂燃速提供了一条可行途径。更多还原

【Abstract】 The nano-CuOAP composite particles were prepared by means of solvent-nonsolvent method. The morphology and compositions were characterized by TEM,XRD and AA.The results show that the composite particles contain copper oxide (CuO) and ammonium perchlorate (NH4ClO4)only , and CuO is coated by AP. The catalytic function of composite particles was tested by using DSC. The results show that the high exothermic peak of nano-CuOAP composite particles drops down to 101℃ i.e. 5.64℃ in advance to the simple admixture of CuO and AP.It is important that the low exothermic peak of AP decomposition disappeares and the high temperature decomposition of AP begins soon after a phase transforming from orthorhombic to cubic, which provides a feasible way to improve the burning rate of propellants.更多还原