Energetic coordination complex based on azo tetrazole azotetrazole and use thereof

A technology of azotetrazole and complexes, applied in the field of energetic complexes, to achieve the effects of improved combustion performance, easy-to-obtain raw materials, and simple preparation methods

Inactive Publication Date: 2009-05-20
NORTHWEST UNIV(CN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Realize the harmony of high energy and insensitivity of energetic combustion catalysts. Whether it is the previous research on energetic combustion catalysts of azide metal salt series or the research on energetic combustion catalysts of tetrazole metal salts currently being explored, high energy and insensitivity are common contradiction

Method used

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  • Energetic coordination complex based on azo tetrazole azotetrazole and use thereof
  • Energetic coordination complex based on azo tetrazole azotetrazole and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: PbATZ(phen) 2 ·3H 2 Synthesis of O

[0021] Ligand Preparation: Na 2 ATZ·5H 2 The synthetic reference method of O (Thiele J., JustusLiebigs Ann.Chem.1898,303,57): 0.5mol dry 5-aminotetrazole is dissolved in 500 milliliters of 10% NaOH solution, and the mixture is heated to 65°C in a water bath, After stirring for 30-40min, slowly add 65g KMnO 4 , and the reaction solution was stirred and reacted at 65° C. for 2 hours. Then add 500 ml of 95% ethanol under stirring and make the reaction solution boil for a few minutes while hot and filter to remove MnO 2 . The filtrate was cooled to give golden yellow needles. The product was washed with a small amount of absolute ethanol and dried in a desiccator at room temperature with a yield of 78%.

[0022] Preparation of Complexes: Metals and Ligands (ATZ 2 ), phen reacts in a molar ratio of (1:1:2):

[0023] pb 2+ +ATZ 2- +2phen+3H 2 O→Pb(ATZ)(phen) 2 (H 2 O) 3

[0024] Pb(NO 3 ) 2 (2mmol) and Na 2 A...

Embodiment 2

[0027] The metal complex Mn(ATZ)(phen) was prepared according to the preparation method described in Example 1 2 (H 2 O) 5 、Co(ATZ)(phen) 2 (H 2 O) 2 、Ni(ATZ)(phen) 2 (H 2 O) 2 、Cu(ATZ)(phen) 2 、Zn(ATZ)(phen) 2 (H 2 O) 2.5 、Pb(ATZ)(phen) 2 (H 2 O), Mn(ATZ)(bpy) 2 (H 2 O) 3 、Co(ATZ)(bpy) 2 (H 2 O) 7 、Ni(ATZ)(bpy) 2 , Cu(ATZ)(bpy), Zn(ATZ)(bpy)(H 2 O), Pb(ATZ)(bpy)(H 2 O) 2 , its metal ion composition content is measured by EDTA titration, C, H, N are measured by elemental analyzer, and the theoretical value is consistent with the calculated value.

Embodiment 3

[0029] The main components of the propellant (RDX, HMX, AP and NC / NG) and the complex prepared in Example 1 and their binary mixed system were studied by DSC experiment. The substance and the single component are premixed at a mass ratio of 1:3, and the DSC experiment of the mixed component uses Al 2 o 3 The "sandwich sugar" method was used, and the activation energy was obtained by the Kissiger and Ozawa method through the DSC curves at four different heating rates. The results of the DSC thermogram analysis of each system are listed in Table 1.

[0030] Table 1 Characteristic parameters of thermal decomposition of mixtures of complexes and four single-component explosives

[0031]

[0032]The decomposition peak temperature is advanced to varying degrees. Except for NC / NG, the heat release of decomposition increases, and the heat of decomposition of AP increases the most. Except for AP, the activation energy of decomposition decreases. It is proved that the complex can p...

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Abstract

The invention discloses an azotetrazole-based energetic compound with the composition of M(ATZ)(L)n question mark mH2O, wherein, M refers to Mn, Co, Ni, Cu, Zn or Pb; ATZ refers to 5, 5'-azotetrazole ion, L refers to 1, 10-o-phenanthroline or 2, 2'-dipyridyl, n refers to 1 or 2, and m refers to an integer or a decimal between 0 and 10. In the invention, the 1, 10-o-phenanthroline or the 2, 2'-dipyridyl is introduced into the M(ATZ) as an ancillary ligand to obtain a novel compound, thus integrating the characteristics of high efficiency, insensibility and environmental protection of a catalyst on the premise of the combustibility improvement of composite propellants. The azotetrazole-based energetic compound has the advantages of simple preparation method and accessible raw materials.

Description

technical field [0001] The invention relates to a class of energetic complexes based on azotetrazole, which can be used as energetic combustion catalysts. Background technique [0002] In the traditional double-base propellant formulation, it is difficult to adjust the burning rate and pressure index of the propellant due to the addition of a large amount of RDX or HMX. In order to achieve the platform effect of propellant combustion and the adjustment of burning rate, the method of adding a large amount of lead salt, copper salt and carbon black composite catalyst is currently used at home and abroad. However, the addition of a large number of inert catalysts affects the guidance accuracy of the flight propulsion system and at the same time reduces the energy of the propellant formula, making it difficult for the flight range to meet the design requirements. Therefore, the adjustment of propellant combustion performance based on the change of propellant composition has bec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F7/24C07F1/08C06B47/00B01J31/12
Inventor 陈三平谢钢高胜利焦宝娟赵凤起
Owner NORTHWEST UNIV(CN)
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