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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
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(西安近代化学研究所燃烧与爆炸技术重点实验室, 陕西 西安 710065)

作者简介:

赵凤起(1963-),男,博导,研究员,主要从事固体推进剂配方、热分析化学和燃烧技术研究。e-mail: npecc@163.com

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基金项目:

国家自然科学基金(21173163),燃烧与爆炸技术重点实验室基金(9140C350307110C3506)


Preparation, Thermal Decomposition Mechanism and Combustion Catalytic Activity of Zirconium 3,5-dinitrosalicylate(DNS-Zr)
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(Science and Technology on Combustion and Explosion Laboratory, Xi′an Modern Chemistry Research Institute, Xi′an 710065, China)

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    摘要:

    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%。

    Abstract:

    Zirconium 3,5-dinitrosalicylate (DNS-Zr) was synthesized firstly by using 3,5-dinitrosalicylic acid, zirconyl nitrate and sodium hydroxide as raw materials. Its structure was characterized by elementary analysis, X-ray fluorescence diffraction and FTIR spectra. The thermal behavior and decomposition mechanism of DNS-Zr in a temperature-programmed mode were investigated by means of TG-DTG, DSC and condensed phase thermolysis/FTIR techniques. The decomposition products of DNS-Zr are ZrO2 and C. The sample of propellants containing DNS-Zr were prepared by extrusion technology, and the effects of DNS-Zr on combustion properties of DB/CMDB propellants were investigated. Results show that the catalytic efficiency of DNS-Zr is 10%-20%.

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赵凤起,张衡,安亭,等.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[J].含能材料, 2014, 22(5):635-640. DOI:10.3969/j. issn.1006-9941.2014.05.011.
ZHAO Feng-qi, ZHANG Heng, AN Ting, et al. Preparation, Thermal Decomposition Mechanism and Combustion Catalytic Activity of Zirconium 3,5-dinitrosalicylate(DNS-Zr)[J]. Chinese Journal of Energetic Materials, 2014, 22(5):635-640. DOI:10.3969/j. issn.1006-9941.2014.05.011.

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  • 收稿日期: 2013-12-28
  • 最后修改日期: 2014-02-16
  • 录用日期: 2014-03-11
  • 在线发布日期: 2014-10-29
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