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Rapid-curing GAP-based explosive

A rapid curing and explosive technology, applied in the direction of explosives, explosives processing equipment, non-explosive/non-thermal agent components, etc., can solve the problems of low curing rate, long curing time, and affecting the performance of cured products, so as to achieve low viscosity of the slurry, The effect of short curing time

Inactive Publication Date: 2020-04-17
XIAN MODERN CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cyanate group in this kind of curing agent reacts with the hydroxyl group in GAP to form a cured product with a certain shape, which is characterized by low curing rate and long curing time, and the cyanate group is easy to react with water to affect the performance of the cured product

Method used

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  • Rapid-curing GAP-based explosive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The present invention is implemented with reference to the following mass percentage composition: 11.11% GAP, 1.38% dipropynyl succinate, 5.50% glyceryl triacetate, 30.00% RDX, 30.00% AP, AL powder 22.00%, triphenylbismuth 0.01 %. Wherein the number average molecular weight of GAP is 3698g / mol, and the N content in GAP is 41.72%.

[0016] Preparation:

[0017] (1) Syrup preparation

[0018] Weigh 55g glyceryl triacetate and place it in a rotary mixer, let stand at 60°C for 10min, add 111.1gGAP, stir in vacuum for 20min, add 300gRDX and stir for 5min, add 300gAP and stir for 5min, add 220g AL powder and stir in vacuum for 60min, add 13.8g butane Acid dipropynyl alcohol ester and 0.1 g triphenyl bismuth were stirred for 15 min to form a uniformly mixed syrup.

[0019] (2) sample preparation

[0020] The slurry was poured into the mold by the vacuum casting process, and the curing time was tested when the hardness remained constant at 60°C, and the performance test was...

Embodiment 2

[0022] The present invention is implemented with reference to the following mass percentage composition: 11.45% GAP, 1.14% dipropynyl succinate, 5.50% glyceryl triacetate, 30.00% RDX, 30.00% AP, AL powder 21.90%, triphenylbismuth 0.01 %. Wherein the number average molecular weight of GAP is 3698g / mol, and the N content in GAP is 41.72%.

[0023] Preparation:

[0024] (1) Syrup preparation

[0025] Weigh 55g glycerol triacetate and place it in a rotary mixer, let stand at 60°C for 10min, add 114.5gGAP, stir in vacuum for 20min, add 300gRDX and stir for 5min, add 300gAP and stir for 5min, add 219gAL powder and stir in vacuum for 60min, add 11.4g butane Acid dipropynyl alcohol ester and 0.1 g triphenyl bismuth were stirred for 15 min to form a uniformly mixed syrup.

[0026] (2) sample preparation

[0027] The slurry was poured into the mold by the vacuum casting process, and the curing time was tested when the hardness remained constant at 60°C, and the performance test was ...

Embodiment 3

[0029] The present invention is implemented with reference to the following mass percentage composition: 11.30% GAP, 1.25% dipropynyl succinate, 5.50% triacetin, 30.00% RDX, 30.00% AP, AL powder 21.94%, triphenylbismuth 0.01 %. Wherein the number average molecular weight of GAP is 3698g / mol, and the N content in GAP is 41.72%.

[0030] Preparation:

[0031] (1) Syrup preparation

[0032] Weigh 55g glycerol triacetate and put it in a rotary mixer, let stand at 60°C for 10min, add 113gGAP, stir in vacuum for 20min, add 300gRDX and stir for 5min, add 300gAP and stir for 5min, add 219.4gAL powder and vacuum stir for 60min, add 12.5g butane Acid dipropynyl alcohol ester and 0.1 g triphenyl bismuth were stirred for 15 min to form a uniformly mixed syrup.

[0033] (2) sample preparation

[0034] The slurry was poured into the mold by the vacuum casting process, and the curing time was tested when the hardness remained unchanged at 60°C, and the performance test was carried out. T...

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Abstract

The invention discloses a rapid-curing GAP (glycidyl azide polymer) explosive, and aims to solve the problems that the curing time of an existing cyanate ester curing agent is long, and a curing system is easily influenced by environmental humidity. According to the invention, the rapid-curing GAP explosive is composed of, by mass, 11.11%-11.45% of GAP; 1.04%-1.38% of succinic acid dipropargyl alcohol ester; 5.50% of glycerol triacetate, 30.00% of RDX, 30.00% of AP is, 21.66%-22.34% of AL, and 0.01% of triphenyl bismuth, wherein the number-average molecular weight of GAP is 3698g / mol, and theN content of GAP is 41.72%. The curing time of the formula is reduced to 22 hours or shorter, and a technical means is provided for the application of GAP in the explosive formula.

Description

technical field [0001] The invention relates to a fast-curing explosive of GAP (glycidyl polyazide), in particular to an explosive formula in which an acetylenic compound is used as a curing agent. Background technique [0002] The energy of explosives in detonation is directly affected by the components of mixed explosives and the structure of explosive charges. Measures such as selecting high-energy explosive components and improving the bonding state between explosive components have significantly improved the energy output characteristics of mixed explosives, and greatly improved the damage capability of explosives. Under the condition that the solid type and content of the traditional charge formula remain unchanged, the energy of the PBX can be increased to a certain extent by introducing energetic binders into the PBX formula. [0003] GAP is a hydroxyl-terminated prepolymer with an azidomethyl group on the polyether main chain. Many properties are similar to HTPB (h...

Claims

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Application Information

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IPC IPC(8): C06B33/12C06B23/00C06B21/00
CPCC06B21/0058C06B23/001C06B33/12
Inventor 陈春燕王晓峰余然郑亚峰牛余雷
Owner XIAN MODERN CHEM RES INST
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