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含能材料  2014 

3,5-二硝基水杨酸锆的制备、热分解机理及其燃烧催化作用

DOI: 10.3969/j.issn.1006-9941.2014.05.011

Keywords: 材料科学,3,5-二硝基水杨酸锆,推进剂,热行为,分解机理,燃烧性能,催化作用

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Abstract:

以3,5-二硝基水杨酸、硝酸氧锆和氢氧化钠为原料,合成出了3,5-二硝基水杨酸锆(DNS-Zr),采用有机元素分析、X射线荧光光谱和傅里叶红外光谱(FTIR)对其进行了表征。在程序升温条件下,利用TG-DTG和DSC以及固相原位反应池/傅里叶变换红外光谱(RS-FTIR)联用技术,研究了3,5-二硝基水杨酸锆的热行为和热分解机理,认为3,5-二硝基水杨酸锆先失去一个结晶水,再分解为ZrOCO3和大量的C,同时大量放热,其最终分解产物为ZrO2和C。利用螺压工艺制备了含3,5-二硝基水杨酸锆的推进剂样品,研究了3,5-二硝基水杨酸锆对双基系推进剂燃烧性能的影响。结果表明,3,5-二硝基水杨酸锆对双基系推进剂的催化效率为10%~20%。

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