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兵工学报 ›› 2014, Vol. 35 ›› Issue (11): 1756-1764.doi: 10.3969/j.issn.1000-1093.2014.11.005

• 论文 • 上一篇    下一篇

富勒烯肼硝酸盐的制备及其热分解性能

关会娟1, 金波1, 彭汝芳1, 赵凤起2, 韩文静1, 陈百利1, 楚士晋1   

  1. (1.西南科技大学 非金属复合与功能材料省部共建国家重点实验室培育基地, 四川 绵阳 621010;
  • 收稿日期:2014-01-26 修回日期:2014-01-26 上线日期:2015-01-05
  • 作者简介:关会娟(1988—),女,硕士研究生
  • 基金资助:
    国家自然科学基金项目(51372211、21301142);国防基础科研项目(A3120110005、A3120133002);四川省青年科技创新研究团队项目(2011JTD0017);西南科技大学杰出青年基金项目(13ZX9107)

The Preparation and Thermal Decomposition Performance of Fullerene Hydrazine Nitrate

GUAN Hui-juan1, JIN Bo1, PENG Ru-fang1, ZHAO Feng-qi2, HAN Wen-jing1, CHEN Bai-li1, CHU Shi-jin1   

  1. (1.State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials,Southwest University of Science and Technology, Mianyang 621010, Sichuan, China;2.Xi’an Modern Chemistry Research Institute,Xi’an 710065, Shaanxi, China)
  • Received:2014-01-26 Revised:2014-01-26 Online:2015-01-05

摘要: 以富勒烯、水合肼为原料合成富勒烯肼,富勒烯肼再与浓硝酸反应得到一种新型含能燃烧催化剂—富勒烯肼硝酸盐,并采用红外、紫外、元素分析及X射线光电子能谱等现代分析测试技术对产物结构进行了表征。采用差热分析(DTA)法和热重分析(TGA)法对富勒烯肼硝酸盐的热稳定性进行了研究,结果表明,在动态空气气氛下,其具有一定的热稳定性。采用DTA法,对加入富勒烯肼硝酸盐前后硝胺炸药黑索今(RDX)和奥克托今(HMX)的热分解行为进行了研究,结果表明,加入富勒烯肼硝酸盐后,RDX和HMX在不同升温速率(2.5 ℃/min、5 ℃/min、10 ℃/min和20 ℃/min) 条件下的放热峰值温度均降低,RDX分解活化能降低了约17 kJ/mol,HMX分解活化能降低值大于20 kJ/mol,由此表明富勒烯肼硝酸盐对RDX和HMX的热分解均有一定的催化作用。

关键词: 兵器科学与技术, 富勒烯肼硝酸盐, 结构表征, 热分解, 燃烧催化剂, 推进剂

Abstract: A new potential energetic combustion catalyst, fullerene hydrazine nitrate, is prepared via a two-step process, in which fullerene hydrazine is prepared with fullerene and hydrazine hydrate, and then fullerene hydrazine reacts with concentrated nitric acid to form fullerene hydrazine nitrate. The chemical structures of products are characterized by FT-IR, UV-visible spectra, elemental analysis and X-ray photoelectron spectroscopy. The thermal stability of fullerene hydrazine nitrate is characterized by differential thermal analysis (DTA) and thermogravimetry analysis (TGA). The results indicate that the product shows a certain thermal stability in dynamic air atmosphere. The thermal decomposition behaviours of RDX and HMX in the absence and presence of fullerene hydrazine nitrate are investigated by using DTA method. The research results show that fullerene hydrazine nitrate can accelerate obviously the decomposition of RDX and HMX. The peak temperatures of the exothermal decomposition are reduced at the different heating rates of 2.5, 5, 10 and 20 ℃/min. The corresponding activation energy of RDX is decreased by about 17 kJ/mol, and that of HMX is reduced by more than 20 kJ/mol.

Key words: ordnance science and technology, fullerene hydrazine nitrate, structural characterization, thermal decomposition, combustion catalyst, propellant

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