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A high-energy insensitive pressure-packed polymer bonded explosive

A technology for bonding explosives and polymers, which is applied in the direction of nitrated acyclic/alicyclic/heterocyclic amine explosive compositions, etc., can solve the problems of low vulnerability PBX energy and low vulnerability performance, etc. The effect of fragile performance, energy performance improvement, good safety performance

Active Publication Date: 2020-05-26
HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention overcomes the problem that the existing press-fit low-vulnerability PBX cannot balance the energy and low-vulnerability performance, and provides a high-energy insensitivity with a higher energy level and a better low-vulnerability formula at the same time Press-packed high-polymer bonded explosives balance the contradiction between press-packed PBX formula energy and low vulnerability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The formula (calculated by weight percentage) consists of the following:

[0031] Explosives: TKX-50, 45%; HMX, 20%.

[0032] Metal fuel: magnesium alloy, 30%;

[0033] Binder: F 26 Rubber, 1%; PMMA, 0.5%.

[0034] Desensitizing agent: TA, 0.5%; paraffin, 3%.

[0035] The properties of the explosive are as follows:

[0036] Safety performance: friction sensitivity (3.92MPa, 90°) is 16%, impact sensitivity (10kg, 25cm) is 0;

[0037] Energy performance: the detonation velocity is 7920m / s, the detonation heat is 9450 J / g, and the power is 2.2TNT.

[0038] Low vulnerability performance: the response levels of the fast cook-off test, slow cook-off test and bullet impact test are all burning.

Embodiment 2

[0040] The formula (calculated by weight percentage) consists of the following:

[0041] Composition of explosives: TKX-50, 75%; HMX, 5%.

[0042] Metal fuel composition: magnesium boron alloy, 15%;

[0043] Binder composition: butadiene rubber, 1%; PTFE, 2.0%.

[0044] Desensitizing agent: paraffin wax, 1.0%; polyethylene wax, 1.0%.

[0045] The properties of the explosive are as follows:

[0046] Safety performance: friction sensitivity (3.92MPa, 90°) is 8%, impact sensitivity (10kg, 25cm) is 0;

[0047] Energy performance: the detonation velocity is 8350m / s, the detonation heat is 8150 J / g, and the power is 1.9TNT.

[0048] Low vulnerability performance: the response levels of the fast cook-off test, slow cook-off test and bullet impact test are all burning.

Embodiment 3

[0050] The formula (calculated by weight percentage) consists of the following:

[0051] Composition of explosives: TKX-50, 60%; HMX, 15%.

[0052] Composition of metal fuel: Al, 15%; Aluminum trihydride, 5%;

[0053] Binder composition: acrylate rubber, 1%; PTFE, 1.5%.

[0054] Desensitizing agent: DOA, 0.5%; polyethylene wax, 2%.

[0055] The properties of the explosive are as follows:

[0056] Safety performance: friction sensitivity (3.92MPa, 90°) is 8%, impact sensitivity (10kg, 25cm) is 0;

[0057] Energy performance: the detonation velocity is 8220m / s, the detonation heat is 8450 J / g, and the power is 1.94TNT.

[0058]Low vulnerability performance: the response levels of the fast cook-off test, slow cook-off test and bullet impact test are all burning.

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PUM

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Abstract

The invention relates to a high energy insensitive press-fitting high polymer bonded explosive which is prepared from the following components in percentages by weight: 45-75% of main body explosive,5-20% of auxiliary explosive, 15-30% of metal fuel, 1-5% of an adhesive and 1-3% of an insensitive agent, wherein the main body explosive is TKX-50. In order to solve the existing problem that press-fitting PBX is not compatible in power properties and low vulnerability, a high energy insensitive explosive system is introduced. By adding the high energy insensitive main body explosive, the PBX formula has good power properties and low vulnerability. The detonation velocity of the explosive formula is greater than 7500m / s, the explosion heat is greater than 7500J / g, the power is greater than 1.85TNT (2,4,6-trinitrotoluene), and meanwhile, the friction sensitivity of the explosive formula is smaller than 20%, the impact sense is 0, and the explosive can pass examinations of low vulnerabilitytest items such as quick cook-off, slow cook-off and bullet impact.

Description

technical field [0001] The invention relates to a polymer bonded explosive (hereinafter abbreviated as PBX), specifically a high-energy insensitive pressure-packed polymer bonded explosive, which belongs to the field of propellant and explosive formula development. Background technique [0002] Since the development of low-fragility explosives was proposed in the early 1980s, the related research has been highly valued by countries all over the world, and many new low-fragility explosive formulations have been introduced. With the United States, NATO and others emphasizing the development of insensitive munitions (IM ), low-vulnerability explosives have entered the stage of large-scale promotion and application. At present, the low-fragile explosives researched and applied abroad are mainly high-quality RDX (hereinafter abbreviated as RDX), high-quality Octogen (hereinafter abbreviated as HMX), 3-nitro-1,2,4-triazole -5-ketone (hereinafter abbreviated as NTO), 1,3,5-triamin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06B25/34
CPCC06B25/34
Inventor 熊伟强王鹏朱雯娟李忠友郑光虎苗楠曹仕瑾赵新岩高扬
Owner HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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