A coating method for tkx-50

A TKX-50, coating technology, applied in 1 field, can solve the problems of unsatisfactory mechanical properties and detonation performance, low mechanical sensitivity, poor modification effect, etc., to achieve good coating effect, low friction and impact sensitivity, technology The effect of conditional realization

Active Publication Date: 2020-09-18
BEIJING INSTITUTE OF TECHNOLOGYGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

TKX-50 is a kind of salt energetic material, which has high requirements on material compatibility, and the effect of directly coating the interface with polymer is poor, and the mechanical properties and detonation performance of the charge are not ideal; the composite material coating TKX-50 has a good prospect, and so far there is no report on the successful use of this method to coat TKX-50; when surfactants are used to coat TKX-50, factors such as the type and amount of surfactants will affect the performance of the product
[0003] Nitroguanidine (NQ) is a white needle-like crystal with extremely low mechanical sensitivity of 0%. It is an excellent passivator for energetic materials. The physical properties of its crystal surface are similar to those of TKX-50, both of which are inorganic salts It is a kind of energetic material and has good compatibility, but there is no literature report on the use of nitroguanidine and polymer materials in the coating of insensitive TKX-50 of TKX-50 explosives

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A coating method of TKX-50, the specific steps are as follows:

[0021] At a temperature of 80°C, after stirring and dissolving 1.5g of nitroguanidine in 200g of water, keep the temperature constant, add 98g of TKX-50, stir for 35 minutes, and in a standing state, cool down at a rate of 3°C per minute. The temperature of the solution is rapidly reduced to 55°C, and then the solution is lowered to 5°C at a cooling rate of 0.5°C per minute, filtered to obtain a white product; 0.5g of fluororubber is dissolved in 50g of ethyl acetate solvent, and after the dissolution is uniform, the mass Fraction is 0.99% liquid glue; Gained white product (99.3g) is joined in 50.5g liquid glue, stirs, and liquid glue forms 149.8g homogeneous mixture; 149.8g homogeneous mixture is poured into 750g water, with 220r / min, after the addition, continue to stir for 10 minutes, then add 750g of water, continue to stir for 15 minutes, make it completely dispersed in water, filter and filter the p...

Embodiment 2

[0024] A coating method of TKX-50, the specific steps are as follows:

[0025] At a temperature of 85°C, stir and dissolve 12g of nitroguanidine in 2000g of water, keep the temperature constant, add 978g of TKX-50, stir for 25 minutes, and cool the solution at a cooling rate of 4°C per minute in a standing state. The temperature dropped rapidly to 65°C, and then the solution was lowered to 7°C at a cooling rate of 1°C per minute, filtered to obtain a white product; 10g of silicone rubber was dissolved in 680g of tetrahydrofuran solvent, and after the dissolution was uniform, the obtained mass fraction was 1.45%. The liquid glue of white product (989.4g) is joined in the 690g liquid glue, stirs, makes the liquid glue form 1679.4g uniform sticky mixed jelly; Add 1679.4g of jelly into 8400g water, simultaneously with 250 revolutions Stir at a speed of 1 / min, after the addition is complete, continue to stir and disperse for 10 minutes, then add 8500g of water, continue to stir for...

Embodiment 3

[0028] A coating method of TKX-50, the specific steps are as follows:

[0029] At a temperature of 88°C, stir and dissolve 1.7g of nitroguanidine in 200g of water, keep the temperature constant, add 96.8g of TKX-50, stir for 30 minutes, and then cool down at a rate of 5°C per minute in a standing state Rapidly lower the temperature of the solution to 60°C, then drop the solution to 8°C at a cooling rate of 1.5°C per minute, filter to obtain a white product; dissolve 1.5g of polystyrene into 50g of ether solvent, and after dissolving evenly, obtain the mass Fraction is the liquid glue of 2.9%; White product (98.1g) is joined in 50g liquid glue, stirs, and liquid glue forms 149.6g evenly mixed jelly thing; With 149.6g jelly thing, joins in 850g water, simultaneously with Stir at a speed of 250r / min, after the addition is complete, continue to stir for 15 minutes, then add 950g of water, continue to stir for 18 minutes, filter and filter the product in a vacuum oven with a vacuum...

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PUM

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Abstract

The invention relates to a TKX-50 coating method, in particular to a 1,1'-dyhydroxy-5,5'-bistetrazole dihydroxylamine coating method, and belongs to the field of an energy-containing material. Nitroguanidine and macromolecules are matched to be used; the optimum coating on the TKX-50 is realized through process creation; the coating problem of TKX-50 explosive is effectively solved; the preparation process is simple; the operation is easy; no complicated production devices are needed; no high-temperature pressure device is used in the preparation process; the process conditions can be easily realized; used solvents and glue liquid can be repeatedly recovered and utilized; the environment-friendly requirements are met; the operation is safe and reliable; the industrial production can be realized.

Description

technical field [0001] The invention relates to a coating method of 1,1'-dihydroxy-5,5'-bistetrazole dihydroxylamine salt (TKX-50), which belongs to the field of energetic materials. Background technique [0002] TKX-50 is a new type of cage-shaped high-energy explosive, a white crystalline granular tetrazole energetic ion salt, with high energy and low sensitivity. It is a new type of energetic material that has appeared in recent years and has been widely concerned in the global application field. Numerous literatures have recorded reports on the optimization of synthesis process conditions and formula theoretical calculations of TKX-50, but there are few research literatures on insensitivity and charge application. Reasonable surface coating treatment of simple explosives without affecting the explosive performance is the key to the charging technology of explosives and whether single explosives can be applied in multiple links. Since James’ high-efficiency coated explos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06B21/00C06B25/34
CPCC06B21/00C06B25/34
Inventor 刘吉平刘莉莉李志华郝尧刚阮建刘晓波
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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