【摘 要】
：
以Pb(NO3)2、SnCl4.5H2O和NaOH为原料,采用室温固相化学反应法制备纳米复合物PbO.SnO2。用X-射线粉末衍射(XRD)、透射电镜(TEM)、傅里叶变换红外光谱仪(FT-IR)和扫描电镜能谱
【机 构】
：
西安近代化学研究所燃烧与爆炸技术重点实验室,
论文部分内容阅读
以Pb(NO3)2、SnCl4.5H2O和NaOH为原料,采用室温固相化学反应法制备纳米复合物PbO.SnO2。用X-射线粉末衍射(XRD)、透射电镜(TEM)、傅里叶变换红外光谱仪(FT-IR)和扫描电镜能谱(SEM-EDS)对纳米复合物PbO.SnO2的组成、大小、形貌进行表征。研究了纳米复合物PbO.SnO2对双基和RDX-CMDB推进剂燃烧性能的影响。结果表明,纳米复合物PbO.SnO2的平均粒径约为40～60nm,在2～20MPa压力区,能明显提高双基推进剂的燃速,在10～20MPa的压力指数为0.257。在2～20MPa压力区,该纳米复合物使RDX-CMDB推进剂的燃速有所提高,与炭黑复合使用时,其催化效率进一步提高。
Pb (NO3) 2, SnCl4.5H2O and NaOH were used as raw materials to prepare the nanocomposite PbO.SnO2 by room-temperature solid-state chemical reaction. The composition, size and shape of the nanocomposite PbO.SnO2 were characterized by XRD, TEM, FT-IR and SEM-EDS Appearance to characterize. The effect of nanocomposite PbO.SnO2 on the combustion properties of the bismuth and RDX-CMDB propellants was investigated. The results show that the average particle size of nanocomposite PbO.SnO2 is about 40 ~ 60nm. Under the pressure of 2 ~ 20MPa, the burning rate of double base propellant can be obviously increased. The pressure index at 10 ~ 20MPa is 0.257. In the pressure range of 2 ~ 20MPa, the nanocomposites improved the burning rate of RDX-CMDB propellant, and the catalytic efficiency of the RDX-CMDB propellant was further improved when it was used in combination with carbon black.
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