Low density explosive and preparation method thereof

A technology for low-density explosives, applied in the direction of nitrated acyclic/alicyclic/heterocyclic amine explosive compositions, etc., can solve the problems of low detonation ability and unstable detonation performance of low-density explosives, and achieve excellent physical and chemical properties, The effect of high strength and high detonation velocity

Active Publication Date: 2012-05-02
湖北三江航天红林探控有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

But at the same time, the detonation ability of low-density explosives is low, and the detonation performance is unstable

Method used

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  • Low density explosive and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0018] The present embodiment provides a kind of preparation method of low-density explosives, comprising the following steps: 1) sequentially adding hydroxyl-terminated polybutadiene, diisooctyl sebacate, toluene diisocyanate, tris-(2-methylaziridine ) Phosphine oxide, dibutyltin dilaurate, and silica hollow microspheres (HD-3) are evenly mixed to obtain an adhesive; 2) Polyhei-14 booster is added to the adhesive, mixed and stirred in a mixer, The rotating speed of the mixer is 15-20rpm, the stirring time is 15-20min, and the mixture is obtained; 3) the mixture is poured, and finally solidified, the curing temperature is 18-30°C, the humidity is 40-70%, and the time is 48~ 60h.

[0019] The low-density explosive of Example 1 was prepared by the preparation method, and the weight percentage of each component in the explosive was shown in Explosive 1 in Table 1.

Embodiment 2

[0021] The low-density explosive of Example 2 was prepared by the preparation method, and the weight percentage of each component in the explosive was shown in Explosive 2 in Table 1.

Embodiment 3

[0023] The low-density explosive of Example 3 was prepared by the preparation method, and the weight percentage of each component in the explosive was shown in Explosive 3 in Table 1.

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Abstract

The invention discloses a low density explosive, belonging to the technical field of explosive materials. The low density explosive comprises the following ingredients: 55-65 wt% of polyblack-14 booster explosive, 20.07-25.81 wt% of hydroxyl-terminated polybutadiene, 10.33-13.28 wt% of di-iso-octyl sebacate, 1.56-2.01 wt% of toluene diisocyanate, 0.38-0.49 wt% of tri-(2-methyl aziridine) phosphine oxide, 0.03 wt% of dibutyltin dilaurate, 2.63-3.38 wt% of silica hollow microsphere (HD-3). The low density explosive has the advantages of good safety, high intensity, high detonation capability, and stable detonation performance.

Description

technical field [0001] The invention belongs to the technical field of explosive materials, in particular to a low-density explosive and a preparation method thereof. Background technique [0002] Low density explosive is a kind of low density, low detonation velocity, the density is generally (0.1 ~ 1.2) g / cm 3 , explosives whose detonation velocity is (1500-4500) m / s. This type of explosive has good safety and high strength, and is commonly used in civilian mining and other aspects. But at the same time, the detonation ability of the low-density explosive is low, and the detonation performance is unstable. Contents of the invention [0003] The purpose of the present invention is to solve the above problems and provide a low-density explosive and a preparation method thereof. The low-density explosive prepared by the preparation method has good safety, high strength, high detonation ability and stable detonation performance. [0004] The technical scheme adopted in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B25/34
Inventor 徐继能孙葵王志刚
Owner 湖北三江航天红林探控有限公司
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