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Method for coating CL-20 explosive with plasticized Estane5703

A CL-20, explosive technology, used in explosives, explosives processing equipment, non-explosive/non-thermal agent components, etc.

Inactive Publication Date: 2016-11-09
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, combining the excellent properties of desensitizing agents and polymers and coating CL-20 with desensitizing agents and polymer materials to reduce sensitivity has not yet been discovered.

Method used

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  • Method for coating CL-20 explosive with plasticized Estane5703
  • Method for coating CL-20 explosive with plasticized Estane5703
  • Method for coating CL-20 explosive with plasticized Estane5703

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Set the temperature of the constant temperature water bath to 65°C and start the water circulation. Weigh 120g of pure water into the reactor, turn on the stirring motor at a stirring speed of 450r / min, add 100g of CL-20 into the reactor and stir, so that the CL-20 crystals are evenly dispersed, and the explosive mixture is obtained.

[0031] (2) Dissolve 2 g of No. 80 microcrystalline wax in 18 g of analytically pure petroleum ether to obtain a 10% mass concentration of microcrystalline wax petroleum ether solution for use.

[0032] 1.6 g of Estane5703 and 0.4 g of DOP were dissolved in 38 g of analytically pure chloroform to obtain a 5% mass concentration of chloroform solution containing Estane5703 and DOP for use.

[0033] (3) Raise the temperature of the explosive mixture to 64-66°C, turn on the vacuum pump to release air, adjust the pressure in the kettle to 0.02Mpa, and set the temperature to 3ml·s -1 Drop the petroleum ether solution of microcrystalline wax...

Embodiment 2

[0037] (1) Set the temperature of the constant temperature water bath to 65°C and start the water circulation. Weigh 120g of pure water into the reactor, turn on the stirring motor at a stirring speed of 450r / min, add 100g of CL-20 into the reactor and stir, so that the CL-20 crystals are evenly dispersed, and the explosive mixture is obtained.

[0038] (2) Dissolve 2 g of No. 80 microcrystalline wax in 18 g of analytically pure petroleum ether to obtain a 10% mass concentration of microcrystalline wax petroleum ether solution for use.

[0039] Dissolve 2 g of fluororubber 2311 (F2311) in 38 g of analytically pure ethyl acetate to obtain an ethyl acetate solution of F2311 with a mass concentration of 5%, which is ready for use.

[0040] (3) Raise the temperature of the explosive mixture to 64-66°C, turn on the vacuum pump to release air, adjust the pressure in the kettle to 0.02Mpa, and set the temperature to 3ml·s -1 Drop the petroleum ether solution of microcrystalline wax ...

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Abstract

The invention relates to a method for coating a CL-20 (hexanitrohexaazaisowurtzitane) explosive with plasticized Estane5703. The method comprises the following steps: coating the surface of CL-20 with a desensitizer microcrystalline wax to prepare a CL-20 and microcrystalline wax compound, and coating the surface of the CL-20 and microcrystalline wax compound with Estane5703 to prepare a CL-20 explosive compound. The method allows a uniform and compact film to be formed on the surface of the CL-20 explosive, so the mechanical sensitivity of the CL-20 explosive is substantially reduced. The CL-20 explosive compound prepared in the invention and the coating film thereof are controlled to be in a nanometer range, account for 2-4% of the total system, and have small influences on the energy of the CL-20 explosive. The bump sensitivity of the coated CL-20 explosive is reduced to 52-72% from 100%, and the friction sensitivity of the coated CL-20 explosive is reduced to 40-80% from 100%.

Description

technical field [0001] The invention relates to a method for coating CL-20 explosives with plasticized Estane5703, which belongs to the field of energetic materials. Background technique [0002] Hexanitrohexaazaisowurtzitane (HNIW, commonly known as CL-20) is a high-density, high-energy, high-detonation velocity, and detonation-pressure ammonium nitrate explosive discovered and synthesized by Nielsen in 1987. It is a new generation of explosives after HMX. Among the single-substance explosives that have been industrialized now, CL-20 has the highest energy level, its maximum detonation velocity, detonation pressure, density and other parameters are superior to HMX, and its energy output is 10% to 15% higher than HMX. The application of CL-20 to various explosive products may improve the combat technical indicators of related weapons and equipment. However, due to its high mechanical sensitivity, irregular crystal shape, wide particle size distribution and other factors, it...

Claims

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Application Information

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IPC IPC(8): C06B21/00C06B23/00
CPCC06B21/0083C06B23/005C06B23/009
Inventor 焦清介魏华郭学永李航
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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