摘要
以没食子酸、硝酸铋和硝酸氧锆为原料,首次合成出了双金属有机盐——没食子酸铋锆,采用有机元素分析、X射线荧光(XRF)光谱和傅里叶变换红外(FTIR)光谱对其进行了表征.在程序升温条件下,利用热重(TG)分析、差示扫描量热法(DSC)、固相原位反应池/FTIR联用技术,研究了没食子酸铋锆的热行为和热分解机理,描述了没食子酸铋锆的热分解过程,分析得出其最终分解产物为Bi2O3、ZrO2和C.利用螺压工艺制备了含没食子酸铋锆的推进剂样品,研究了没食子酸铋锆对双基(DB)推进剂燃烧性能的影响,分析了其燃烧催化作用.结果表明,没食子酸铋锆对双基推进剂的燃烧具有良好的催化作用,是一种高效的燃烧催化剂;没食子酸铋锆热分解的最终产物是催化燃烧的主要物质,锆和碳则起辅助催化的作用.
Bismuth/zirconium gallate（Gal-BiZr） was synthesized from gallic acid,bismuth nitrate,and zirconyl nitrate firstly,and characterized by elemental analysis,X-ray fluorescence（XRF）,and Fourier transform infrared（FTIR） spectroscopies.The thermal behavior and decomposition mechanism of Gal-BiZr in a temperature-programmed mode were investigated by thermogravimetric（TG） analysis,differential scanning colorimetry（DSC）,and condensed phase thermolysis/FTIR techniques.The decomposition products of Gal-BiZr are Bi2O3,ZrO2,and C.Samples of propellants containing Gal-BiZr were prepared by extrusion technology,and the effect of Gal-BiZr on double-base（DB） propellant combustion properties was investigated.Gal-BiZr exhibits good catalytic behavior in the combustion of DB and Hexogeon（RDX）CMDB propellants.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
2013年第4期777-784,共8页
Acta Physico-Chimica Sinica
基金
国家自然科学基金(21173163)
燃烧与爆炸技术重点实验室基金(9140C350307110C3506)资助项目~~
关键词
物理化学
没食子酸铋锆
推进剂
热行为
分解机理
燃烧性能
催化作用
Physical chemistry
Bismuth/zirconium gallate
Propellant
Thermal behavior
Decomposition mechanism
Combustion property
Catalytic action
作者简介
Corresponding author. Email： npecc@163.com; Tel： ＋86-29-88291263.
