Ferrocene-based energetic oligomer combustion catalyst

A ferrocene and diamino technology, which is applied in the field of ferrocene-based energetic oligomer combustion catalysts, can solve the problems of affecting the casting performance of propellants, changing combustion parameters, and electrostatic sensitivity, so as to improve combustion catalytic efficiency and high Catalytic efficiency, good safety effect

Active Publication Date: 2018-11-30
NORTHWEST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Ferrocene derivatives are widely used as combustion rate catalysts for solid propellants due to their high-efficiency catalytic effects, but ferrocene derivatives are neutral and volatile, and the burning rate of ferrocenes such as mononuclear NBF and TBF Due to the relatively small molecular weight of the catalyst, there is an obvious volatilization problem during the propellant casting process, which affects the casting performance of the propellant
Additionally, they present significant migration problems during storage, compromising the mechanical properties of the propellant
Although dinuclear ferrocene derivatives with higher molecular weight (such as cattosine) partially solve the migration and volatility problems, some migration is still found in long-term storage, and cattosine is sensitive to static electricity, and its vapor and ultra- Mixtures of fine ammonium perchlorate (AP) dust are potentially hazardous during propellant processing, and these drawbacks may destabilize burning propellants, change designed combustion parameters, and in severe cases lead to explosions

Method used

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  • Ferrocene-based energetic oligomer combustion catalyst
  • Ferrocene-based energetic oligomer combustion catalyst
  • Ferrocene-based energetic oligomer combustion catalyst

Examples

Experimental program
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Embodiment 1

[0017] Example 1: Dissolve 5,5'-ditetrazole diammonium salt (3 mmol) and pyridine (1 mmol) in 30 mL of water, add 1,1'-ferrocene dicarbonyl chloride (3.3 mmol) in 30 mL of toluene solution, stirred rapidly, yellow turbidity appeared, continued stirring for 24 h, suction filtered, the precipitate was washed with toluene, water, and dried to obtain ferrocene energetic oligomer C1, which was an orange-red oily substance, figure 1 is ferrocene energetic oligomer C1 1 H NMR spectrum.

[0018]

Embodiment 2

[0019] Example 2: Dissolve 3,5-diamino-1,2,4-triazole (3 mmol) and pyridine (1 mmol) in 30 mL of water, add 1,1'-ferrocene dicarbonyl chloride ( 3.3 mmol) in 30 mL of toluene solution, stir rapidly, yellow turbidity appears, continue stirring for 24 h, suction filtration, wash the precipitate with toluene, water, and dry to obtain ferrocene energetic oligomer C2, which is orange-red oily substance, figure 2 Ferrocene energetic oligomer C2 1 H NMR spectrum.

[0020]

Embodiment 3

[0021] Example 3: Dissolve 3,4-diaminofurazan (3 mmol) and pyridine (1 mmol) in 30 mL of water, add 30 mL of toluene solution of 1,1'-ferrocene dicarbonyl chloride (3.3 mmol) During the process, stirring rapidly, yellow turbidity appeared, continued stirring for 24 h, suction filtration, the precipitate was washed with toluene and water, and dried to obtain ferrocene energetic oligomer C3, which was an orange-red oily substance, image 3 Ferrocene energetic oligomer C3 1 H NMR spectrum.

[0022]

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Abstract

The present invention discloses a new ferrocene-based energetic polymer shown as a general formula (I) with high catalytic efficiency, low mobility and good safety. Energetic unit 5,5'-bis-triazole, 3,5-diamino-1,2,4-triazole or 3,4-diaminofurazan is introduced into ferrocene. While improving of the catalytic efficiency of combustion, a ferrocene unit is locked in the polymer to solve the problemof easy migration. The ferrocene-based energetic polymer can be used as a rocket combustion catalyst. The general formula (I) is as shown in the specification, wherein n=2-10.

Description

technical field [0001] The invention relates to a ferrocene-based energetic oligomer combustion catalyst with high catalytic efficiency and low mobility. technical background [0002] Ferrocene derivatives are widely used as combustion rate catalysts for solid propellants due to their efficient catalytic effect, but ferrocene derivatives are neutral and volatile, and mononuclear NBF, TBF and other ferrocene types have combustion rates. Due to the relatively small molecular weight of the catalyst, there is a relatively obvious problem of volatilization during the propellant casting process, which affects the casting performance of the propellant. In addition, they exhibit significant migration problems during storage, which can compromise the mechanical properties of the propellant. Although higher molecular weight binuclear ferrocene derivatives (such as catoxine) partially solve the mobility and volatility issues, some migration is still found on long-term storage, and cat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F17/02B01J31/22C06B23/00
CPCB01J31/2295B01J2531/842C06B23/007C07F17/02
Inventor 赵军龙张新宇吴景昊王娇丹常帅陈丽琴苟小锋
Owner NORTHWEST UNIV
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