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A kind of high-explosive thermal aluminum-containing explosive and its preparation method

An explosive and high-explosive technology, which is applied in the field of high-explosive heat aluminum-containing explosive and its preparation field, can solve problems such as poor preparation technology of aluminum-containing explosive, and achieve the effect of improving the explosive heat and good preparation technology of the explosive.

Active Publication Date: 2021-01-22
HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high glass transition temperature, modulus and hardness of solid fluororubber, the compression molding preparation process of aluminum-containing explosives is not good, and it usually needs to be pressed at a higher temperature (≥80°C) and pressure (≥200MPa).

Method used

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  • A kind of high-explosive thermal aluminum-containing explosive and its preparation method
  • A kind of high-explosive thermal aluminum-containing explosive and its preparation method
  • A kind of high-explosive thermal aluminum-containing explosive and its preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0023] A high-explosive thermal aluminum-containing explosive, the formula is shown in Table 1.

[0024] The high-explosive thermal aluminium-containing explosive formula of table 1 embodiment 1

[0025]

[0026] The preparation method of above-mentioned high-explosive thermal aluminum-containing explosive comprises the following steps:

[0027] Step (1): take raw materials according to the formula in Table 1;

[0028] Step (2): stirring and dissolving the carboxyl-terminated liquid fluororubber with acetone solvent, the mass ratio of the two is 1:1;

[0029] Step (3): Add Al and RDX respectively into the liquid fluororubber, stir and mix evenly.

[0030] Step (4): Add the curing agent epoxy resin E44 into the mixture and stir evenly.

[0031] Step (5): Put the prepared material into the mold by vacuum casting, remove the acetone solvent and a small amount of air entrained in the slurry, and then put it into a high-temperature oven at 65°C for heating and curing.

[003...

Embodiment 2

[0035] A high-explosive thermal aluminum-containing explosive, the formula is shown in Table 2.

[0036] The high-explosive heat aluminum-containing explosive formula of table 2 embodiment 2

[0037]

[0038] The preparation method of above-mentioned high-explosive thermal aluminum-containing explosive comprises the following steps:

[0039] Step (1): take raw materials according to the formula in Table 2;

[0040] Step (2): stirring and dissolving the hydroxyl-terminated liquid fluororubber with acetone solvent, the mass ratio of the two is 1:1;

[0041] Step (3): Add Al and HMX respectively into the liquid fluororubber, stir and mix evenly.

[0042] Step (4): Add the curing agent HDI trimer into the mixture, stir and mix evenly.

[0043] Step (5): Put the prepared material into the mold by vacuum casting, remove the acetone solvent and a small amount of air entrained in the slurry, and then put it into a high-temperature oven at 65°C for heating and curing.

[0044] T...

Embodiment 3

[0047] A high-explosive thermal aluminum-containing explosive, the formula is shown in Table 3.

[0048] The high-explosive heat aluminum-containing explosive formula of table 3 embodiment 3

[0049]

[0050] The preparation method of above-mentioned high-explosive thermal aluminum-containing explosive comprises the following steps:

[0051] Step (1): take raw materials according to the formula in Table 3;

[0052] Step (2): stirring and dissolving the hydroxyl-terminated liquid fluororubber with acetone solvent, the mass ratio of the two is 1:1;

[0053] Step (3): Add Al, FOX-7, and RDX respectively into the liquid fluororubber, stir and mix evenly.

[0054] Step (4): Add curing agent N-100 into the mixture and stir evenly.

[0055] Step (5): Put the prepared material into the mold by vacuum casting, remove the acetone solvent and a small amount of air entrained in the slurry, and then put it into a high-temperature oven at 65°C for heating and curing.

[0056] The pro...

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Abstract

The invention provides a high-explosion-heat aluminium-containing explosive. The high-explosion-heat aluminium-containing explosive is prepared from the following components in percentage by mass: 5-20% of terminated functional group-containing liquid fluororubber, 0.5-5% of a curing agent, 35-80% of a main explosive and 10-40% of aluminium powder, wherein the terminated functional group-containing liquid fluororubber is carboxyl-terminated liquid fluororubber or hydroxyl-terminated liquid fluororubber with number-average molecular weight of 2000-18000; the curing agent is an isocyanate curingagent or an epoxy resin curing agent; the main explosive is one or a combination of more of RDX, HMX, CL-20, TATB, FOX-7 and LLM-105; and the grain size of aluminium powder is 50 nm-100 mum. The formula provided by the invention can remarkably increase explosion heat of the explosive.

Description

technical field [0001] The invention generally belongs to the technical field of military mixed explosives, and in particular relates to a high-explosive thermal aluminum-containing explosive and a preparation method thereof. Background technique [0002] As rockets, artillery shells, missiles and other weapons and ammunition have higher requirements for high-efficiency damage power, military mixed explosives are also developing in the direction of high explosive heat and high damage power. Aluminum-containing explosives have excellent characteristics such as high explosion heat, high explosion temperature, long release time of chemical energy, and high combat capability. They have become an important series of military mixed explosives and are widely used in anti-aircraft weapons and ammunition, underwater weapons and ammunition, Weapons and ammunition and air-to-ground weapons and ammunition. The commonly used binders for aluminum-containing explosives are inert binders, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06B23/00C06B33/08C06D5/06
CPCC06B23/001C06B33/08C06D5/06
Inventor 王鹏李忠友李彦荣张天福熊伟强
Owner HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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