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A kind of azide propellant with excellent low temperature adaptability and preparation method thereof

A propellant and plasticizer technology, applied in the field of azide propellant, can solve the problems of poor low temperature adaptability, unfavorable for high-performance strategic and tactical missiles, etc. effect of length

Active Publication Date: 2018-07-27
HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At -60°C, the azide polyether propellant has been vitrified, the body is brittle, and the low temperature adaptability is extremely poor, which is not conducive to the application of azide polyether propellant to high-performance strategic and tactical missiles

Method used

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  • A kind of azide propellant with excellent low temperature adaptability and preparation method thereof
  • A kind of azide propellant with excellent low temperature adaptability and preparation method thereof
  • A kind of azide propellant with excellent low temperature adaptability and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Table 1 Propellant Composition

[0042]

[0043] The propellant was prepared according to the composition and percentage shown in Table 1 above, and the test results showed that the performance of the prepared propulsion was as follows:

[0044] 1. Propellant T g = -65.0°C;

[0045] 2. The low temperature adaptability of the propellant is shown in Table 2;

[0046] 3. Measured specific impulse I of propellant sp : 256.0s (6.86MPa).

[0047] Table 2 is prepared by the low temperature adaptability of the propellant shown in Table 1

[0048]

Embodiment 2

[0050] Table 3 Propellant Composition

[0051]

[0052]

[0053] Propellants were prepared with the composition and percentages shown in Table 3 above, and the test results showed that the performance of the prepared propulsion was as follows:

[0054] 1. Propellant T g = -66.0°C;

[0055] 2. The low temperature adaptability of the propellant is shown in Table 4;

[0056] 3. Measured specific impulse I of propellant sp : 255.5s (6.86MPa).

[0057] Table 4 is prepared by the low temperature suitability of the propellant shown in Table 3

[0058]

Embodiment 3

[0060] Table 5 Propellant Composition

[0061]

[0062]

[0063] The propellant was prepared according to the composition and percentage shown in Table 5 above, and the test results showed that the performance of the prepared propulsion was as follows:

[0064] Propellant properties

[0065] 1. Propellant T g =-64.0°C;

[0066] 2. The low temperature adaptability of the propellant is shown in Table 6;

[0067] 3. Measured specific impulse I of propellantsp : 253.8s (6.86MPa).

[0068] Table 6 is prepared by the low temperature suitability of the propellant shown in Table 5

[0069]

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Abstract

A nitrine propellant with good low-temperature adaptability comprises, by mass, 0.01-0.03% of solid catalyst, 6.0-12.0% of adhesive, 12.0-18.0% of plasticizer, 0.1-2.0% of cross-linking agent, 45.0-60.0% of oxidation agent, 0.5-1.0% of curing agent and 16.0-20.0% of fuel, and also comprises 0.0-1.0% of chain extender. The solid catalyst is trisbismuthine, and the adhesive is one of 3,3-diazido methyloxetane, tetrahydrofuran copolyether and glycidyl azide. The prepared nitrine polyether propellant can be cured at room temperature, is low in vitrification temperature, has high low-temperature mechanical strength and a good low-temperature elongation, and is good in low-temperature adaptability and high in actually measured specific impulse.

Description

Technical field: [0001] The invention belongs to the field of propellant technology, in particular to an azide propellant with low temperature adaptability. Background technique [0002] With the evolution of the modern warfare environment and the expansion of the use area of ​​aircraft, air defense missiles and air-to-air missiles, it is urgently required that the tactical missile engine can adapt to the extremely low temperature environment and have good low temperature adaptability. With the rapid development of tactical strategic missiles, the requirements for the adaptability of missile propellants under extreme low temperature conditions are getting higher and higher, and it is urgent to prepare a propellant formula with good adaptability under extreme low temperature conditions. [0003] The azide polyether adhesive itself contains more azido side chains, and its glass transition temperature is higher. The glass transition temperature of the azide polyether propellant...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06B33/12C06B21/00C06D5/06
CPCC06B21/0025C06B21/0058C06B33/12C06D5/06
Inventor 周水平干效东徐星星庞爱民唐根吴芳宋会彬李洪旭徐海元王艳萍
Owner HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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