纳米CuO/CNTs的制备及对高氯酸钾基烟火药发光强度的影响

Preparation of Nano-CuO /CNTs Composite and its Effect on Luminous Intensity of Pyrotechnics Composites Containing KClO_4

为研究不同附加物对含高氯酸钾与铝粉烟火药的发光强度的影响,采用沸腾回流沉淀法制备了CuO/CNTs纳米复合粒子。用透射电子显微镜(TEM)、X射线衍射仪(XRD)、同步热分析仪(DSC-TG)表征了它的结构和性能。测试了含不同附加物烟火药配方的发光强度。结果表明,氧化铜能够在碳纳米管表面有效负载,粒径为61.1 nm,其中CuO粒径为8.8 nm,负载量为30%。含纳米复合粒子的CuO/CNTs-Al-KClO4配方的发光强度优于任何含单一附加物的配方,与机械混合的CNTs-CuO-Al-KClO4同配比配方相比,发光强度提高了11.2%,表明CuO/CNTs纳米复合粒子具有更强的正协同催化效应。

To evaluate the effects of different additive on the luminous intensity of pyrotechnics composites containing KClO4 and Al powder,the nano-CuO/CNTs composite particles were prepared by a boiling reflux precipitation method. Their structures and performance were characterized by transmission electron microscope（TEM）,X-raydiffraction（XRD）and simultaneous DSC-TG apparatus（ DSC-TG）. The luminous intensity of pyrotechnics formula with different additive was tested. Results show that the CuO particles can be loaded on the surface of CNTs,and the average diameter of CuO/CNTs is 61. 1 nm,and the size of loaded copper oxide particles is 8. 8 nm,and its loading capacity is 30%. The luminous intensity of composite formulation containing nano-CuO/CNTs,Al and KClO4 is better than that of the other ones containing single additive. Compared to the same mass ratio mechanical mixture formula containing CNTs,CuO,Al and KClO4 ,the luminous intensity of composite formulation containing nano-CuO/CNTs composite,Al and KClO4 is increased by 11. 2%,indicating that the CuO/CNTs composite particles has stronger positive synergis-tic catalytic effect.