巢湖学院学报 ›› 2018, Vol. 20 ›› Issue (6): 48-54+127.

• 化学 • 上一篇    下一篇

Al/MoO3棒状纳米铝热剂的制备及性能研究

Al/MoO3纳米铝热剂因放热量高和燃烧速度快等优点而受到广泛关注。实验首先采用水热法在pH = 1,水热温度180°C,水热时间24 h的条件下制备了形貌均匀的棒状MoO3,然后基于电泳沉积技术组装了Al/MoO3纳米复合薄膜,并对其形貌结构、放热量和燃烧性能进行了分析。结果表明,电压200 V、电泳时间10 min、聚乙烯亚胺(PEI)浓度为1%且两组分当量比Φs = 2.13时,Al/MoO3 铝热剂放热量达3555 J/g,燃烧现象剧烈。研究表明,MoO3 的微观形貌和反应组分的混合比例对铝热剂反应性能有显著影响。   

  1. 1 巢湖学院,安徽 巢湖 238000 2 重庆大学,重庆 400044
  • 出版日期:2018-11-25 发布日期:2018-11-25
  • 作者简介:尹艳君(1990-),女,河南开封人。巢湖学院化学与材料工程学院,助教。研究方向:功能纳米材料制备与电化学 能源转换。

THE PREPARATION AND PROPERTIES INVESTIGATION OF Al/MoO3 NANO-RODS THERMITES

Al/MoO3 nano-thermite has attracted wide attention due to its high heat released and fast combustion speed. In this paper, clubbed MoO3 with homogenous morphology was prepared by hydrothermal method at pH=1, reaction temperature 180°C and reaction time 24 h. Then Al/MoO3 nanocomposite coatings were assembled by electrophoretic deposition. Moreover, themorphology, structure, output of heat and combustion properties of the prepared samples were analyzed comprehensively. The results show that when the voltage is 200 V, the electrophoresis time is 10 min, the concentration of polyethyleneimine (PEI) is 1% and the ratio of two components is 2.13, the heat released of Al/MoO3 thermite reaches 3555 J/g, and the combustionphenomenon is violent. It is indicated that the micro-morphology and reaction ratio between Al and MoO3 have significant effect on the reaction performance of the Al/MoO3 thermite.   

  1. 1 Chaohu College, Chaohu Anhui 238000 2 Chongqing University, Chongqing 400044
  • Online:2018-11-25 Published:2018-11-25

摘要: Al/MoO3纳米铝热剂因放热量高和燃烧速度快等优点而受到广泛关注。实验首先采用水热法在pH = 1,水热温度180°C,水热时间24 h的条件下制备了形貌均匀的棒状MoO3,然后基于电泳沉积技术组装了Al/MoO3纳米复合薄膜,并对其形貌结构、放热量和燃烧性能进行了分析。结果表明,电压200 V、电泳时间10 min、聚乙烯亚胺(PEI)浓度为1%且两组分当量比Φs = 2.13时,Al/MoO3 铝热剂放热量达3555 J/g,燃烧现象剧烈。研究表明,MoO3 的微观形貌和反应组分的混合比例对铝热剂反应性能有显著影响。

关键词: 棒状MoO3, 表面修饰, Al/MoO3复合薄膜, 电泳沉积

Abstract: Al/MoO3 nano-thermite has attracted wide attention due to its high heat released and fast combustion speed. In this paper, clubbed MoO3 with homogenous morphology was prepared by hydrothermal method at pH=1, reaction temperature 180°C and reaction time 24 h. Then Al/MoO3 nanocomposite coatings were assembled by electrophoretic deposition. Moreover, themorphology, structure, output of heat and combustion properties of the prepared samples were analyzed comprehensively. The results show that when the voltage is 200 V, the electrophoresis time is 10 min, the concentration of polyethyleneimine (PEI) is 1% and the ratio of two components is 2.13, the heat released of Al/MoO3 thermite reaches 3555 J/g, and the combustionphenomenon is violent. It is indicated that the micro-morphology and reaction ratio between Al and MoO3 have significant effect on the reaction performance of the Al/MoO3 thermite.

Key words: clubbed MoO3, surface modification, Al/MoO3 energetic coating, electrophoretic deposition

中图分类号: 

  • TQ560.7