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Deterrent for double-base propellant, and preparation method and application of deterrent

A desensitizing agent and catalyst technology, applied in non-explosive desensitizer/passivating agent, non-explosive/non-thermal agent component, explosive, etc., can solve the problems of reducing the ballistic performance of ammunition, suspected carcinogenicity, shortening the life of ammunition, etc. , to achieve the effect of ensuring good health, good resistance to migration, and reducing migration problems

Inactive Publication Date: 2019-02-12
LUZHOU NORTH CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the relatively small molecular weight of the small molecule desensitizer, which has strong diffusion ability and mobility, the performance of the gunpowder will change significantly during the long-term storage process, which will significantly reduce the ballistic performance of the ammunition and shorten the service life of the ammunition; in addition, the above-mentioned Small molecule desensitizers are mostly suspected of being carcinogenic to humans, and it is recommended to reduce their use

Method used

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  • Deterrent for double-base propellant, and preparation method and application of deterrent
  • Deterrent for double-base propellant, and preparation method and application of deterrent
  • Deterrent for double-base propellant, and preparation method and application of deterrent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The preparation method of the double base propellant desensitizing agent provided by the present embodiment comprises the following steps:

[0028] (1) Add 250g (2.4mol) of neopentyl glycol and 320g (2.19mol) of adipic acid in sequence to a four-necked reaction flask equipped with a thermometer, agitator, condenser, oil-water separator, etc., and heat up to 100°C Melt, start stirring, then add 60g (0.46mol) isooctyl alcohol and 0.2g (0.3‰m / m) tetraisopropyl titanate to form a reaction system and raise the temperature to 140°C for 3 hours of esterification and dehydration reaction, and esterification and dehydration The water generated in the reaction process is removed after being condensed by the cooling water in the condenser tube; in this embodiment, the temperature of the cooling water is 0°C;

[0029] (2) Slowly heat up the reaction system after completing the esterification reaction in the above step (1) to 200° C. for 4 hours of reaction, then cool to 120° C. and...

Embodiment 2

[0035] The preparation method of the double base propellant desensitizing agent provided by the present embodiment comprises the following steps:

[0036] (1) Add 228.09g (2.19mol) of neopentyl glycol and 320g (2.19mol) of adipic acid in sequence to a four-necked reaction flask equipped with a thermometer, agitator, condenser, oil-water separator, etc., and heat up to 110°C Heat to melt, start stirring, then add 85.56g (0.657mol) isooctyl alcohol and 0.45g (0.7‰m / m) tetraisopropyl titanate to form a reaction system and raise the temperature to 150°C for esterification and dehydration reaction for 2 hours, and esterification The water generated in the chemical dehydration reaction process is removed after being condensed by the cooling water in the condenser; in this embodiment, the temperature of the cooling water is 15°C;

[0037] (2) Slowly heat up the reaction system after completing the esterification reaction in the above step (1) to 220°C for 3.5h, then cool to 125°C and...

Embodiment 3

[0043] The preparation method of the double base propellant desensitizing agent provided by the present embodiment comprises the following steps:

[0044](1) Add 296.52g (2.847mol) of neopentyl glycol and 320g (2.19mol) of adipic acid in sequence to a four-necked reaction flask equipped with a thermometer, agitator, condenser, oil-water separator, etc., and heat up to 105°C Heat to melt, start stirring, then add 28.52g (0.219mol) isooctyl alcohol and 0.65g (1‰m / m) tetraisopropyl titanate to form a reaction system and raise the temperature to 130°C for 2.5h of esterification and dehydration reaction, and The water generated during the esterification dehydration reaction is removed after being condensed by the cooling water in the condenser; in this embodiment, the temperature of the cooling water is 10°C;

[0045] (2) Slowly raise the temperature of the reaction system after the esterification reaction in the above step (1) to 210°C for 4.5h, then cool to 115°C and turn on the ...

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Abstract

The invention provides a deterrent for a double-base propellant, and a preparation method and application of the deterrent. The deterrent for the double-base propellant belongs to a macromolecular polymer deterrent, compared with a small-molecule deterrent, the macromolecular deterrent is small in volatility and quite slow in diffusion due to the large molecular weight and low steam pressure of the macromolecular deterrent, and thus the deterrent has the good anti-mobility under the long storage condition; the propellant desensitized by the deterrent can significantly relieve the mobility problem of long-term storage, thus the normal service life of the propellant can be ensured, the efficient deterrent propellant with long storage performance being capable of meeting the using requirements can be obtained, and the ballistic performance of ammunition is not affected; and in addition, the macromolecular polymer deterrent adopted by the double-base propellant has no toxicity to the humanbody, and the health of a user can be ensured.

Description

technical field [0001] The invention relates to a desensitizing agent for double-base propellant, in particular to a desensitizing agent for double-base propellant and its preparation method and application. Background technique [0002] During the burning process of propellant powder, the surface area is reduced greatly, and its gas generation law is not ideal. Therefore, the surface insensitivity treatment of propellant powder must be carried out to realize the gradual increase of linear burning rate, improve the gas generation law of propellant charge, and improve the The utilization rate of the pressure, thereby increasing the initial velocity of the projectile. Therefore, surface insensitivity technology is one of the main key technologies in the production and application of propellants. The propellant insensitivity technology is to infiltrate a thin layer of slow-burning substance on the surface of the propellant to reduce the gas generation rate at the initial stage...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B23/00C08G63/16C08G63/78
CPCC06B23/005C08G63/16C08G63/78
Inventor 侯毅陈春林毛长勇刘师华李彬孙建友
Owner LUZHOU NORTH CHEM IND
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