A pouring type high-energy insensitive explosive and its preparation method

A technology of sensitive explosives and high-energy explosives, applied in explosives, non-explosive/non-thermal components, non-explosive fillers/gelling agents/thickeners, etc., can solve the problem of low energy level, poor vulnerability, high energy and low sensitivity and other problems, to achieve the effect of improving energy output, increasing insensitivity, and increasing energy storage density

Active Publication Date: 2022-05-20
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the problems of low energy level and poor fragility of existing PBX explosives, and provide a pourable HTPE-based high polymer bonded explosive with high energy and low sensitivity

Method used

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  • A pouring type high-energy insensitive explosive and its preparation method
  • A pouring type high-energy insensitive explosive and its preparation method
  • A pouring type high-energy insensitive explosive and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Table 1 has provided 1# formula composition and performance of the present invention

[0044] Table 1 1# formula composition and performance

[0045]

[0046] The density of 1# formula is 1.85g / cm 3 , the detonation velocity is 8030m / s, the power is 1.92 times TNT, and the response level of the slow roasting test is burning.

[0047] Preparation process: Weigh the dried and pretreated adhesive, plasticizer, and functional additives into the kneader according to the ratio requirements, stir evenly, then add metal fuel and main explosives in turn, and stir for 20 minutes under vacuum , add isocyanate curing agent, and continue to stir for 30 minutes to fully mix the slurry; pour the slurry into the mold under vacuum conditions, and cure at 50°C to 60°C for 4 to 6 days.

Embodiment 2

[0049] Table 2 2# formula composition and performance

[0050]

[0051] The density of formula 2# is 1.90g / cm3, the detonation velocity is 7862m / s, the power is 1.90 times TNT, and the response level of the slow roasting test is burning.

[0052] The preparation process of this embodiment refers to Example 1.

Embodiment 3

[0054] Table 3 3# formula composition and performance

[0055]

[0056] The density of 3# formula is 1.95g / cm 3 , the detonation velocity is 8101m / s, the power is 2.07 times TNT, and the response level of the slow roasting test is burning.

[0057] The preparation process of this embodiment refers to Example 1.

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Abstract

The invention relates to a pourable high-energy insensitive explosive and a preparation method thereof. Aiming at the problem of low energy level of traditional butylated hydroxyl poured PBX explosives, the present invention introduces an energetic binder and an energetic plasticizer as a binder system. By adding High-energy explosive and metal fuel components, the prepared pouring type PBX explosive has higher energy characteristics, and the density of the explosive formula is greater than 1.85g / cm 3 , the detonation velocity is greater than 7800m / s, and the explosive power is more than 1.9 times the equivalent of TNT. At the same time, the explosive formula has good low fragility, especially the mild reaction during the slow cook-off test, and the reaction level does not exceed deflagration.

Description

technical field [0001] The invention relates to a castable high-energy insensitive explosive, which belongs to the field of propellant formula development. Background technique [0002] The safety and survivability of weapons have increasingly become the focus of people's attention, and the research on insensitive explosives has always been an important research direction of countries all over the world. With the development of my country's large-scale aircraft carriers, battleships, submarines and other weapon combat platforms, it is required that the weapon warhead charges have good low vulnerability, and the binder system is one of the important factors affecting the vulnerability of poured PBX explosives. The current castable PBX explosives mainly use hydroxyl-terminated polybutadiene (HTPB) as the binder, which has the disadvantages of low oxygen content and poor compatibility with nitrate plasticizers, which seriously affects the energy efficiency of the ammunition sys...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06B33/08C06B23/00
CPCC06B23/001C06B23/009C06B23/007C06B23/00C06B33/08
Inventor 闫石沈忱焦清介
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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