Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

ETN-DNT eutecticevaporate energetic material and preparation method thereof

A kind of eutectic, stabilizer technology, applied in the direction of aromatic nitration composition, etc., can solve the problems such as loss of effectiveness of gunpowder, deterioration of safety performance of gunpowder, change of gunpowder formula and composition, etc.

Inactive Publication Date: 2016-05-25
ZHONGBEI UNIV
View PDF1 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One is that due to its high melting point (about 51°C) and poor dissolving ability for NC, the propellant containing DINA is prone to crystallization during storage, resulting in changes in the formula and composition of the propellant, which seriously damages the The comprehensive performance of gunpowder makes gunpowder lose its due effectiveness
The second problem is that the sensitivity of DINA is very high, and its impact and friction sensitivity are higher than that of PETN. Using it as a plasticizer will not improve it, but will worsen the safety performance of gunpowder.
However, the problem of ETN is that it has high sensitivity (equal to PETN, slightly lower than DINA), general solubility to NC (slightly higher than DINA), and high melting point (higher than DINA), so it should not be used alone as a plasticizer in gunpowder. agent to use

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • ETN-DNT eutecticevaporate energetic material and preparation method thereof
  • ETN-DNT eutecticevaporate energetic material and preparation method thereof
  • ETN-DNT eutecticevaporate energetic material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Take 1.21g of 1,2,3,4-butanetetraol tetranitrate (ETN) and 0.41g of 2,4-dinitrotoluene (DNT) into a beaker, put them in a 70°C water bath, and wait until the mixture is completely melted and dissolved , add 0.036g of 2-nitrodiphenylamine, 0.018g of diethyldiphenyl urea and 0.126g of dioctyl sebacate (DOS), stir to make all substances dissolve completely, and form a clear solution. Cool slowly to obtain ETN-DNT eutectic energetic material.

Embodiment 2

[0025] Take 2.07g of 1,2,3,4-butanetetraol tetranitrate (ETN) and 1.05g of 2,4-dinitrotoluene (DNT) into a beaker, put them in a water bath at 80°C, and wait until the mixture is completely melted and dissolved , add 0.034g of 2-nitrodiphenylamine, 0.034g of diethyldiphenylurea and 0.204g of dimethyl phthalate (DMP), stir to make all the substances dissolve completely, and form a clear solution. Slowly cooling under the temperature of 100°C, the ETN-DNT eutectic energetic material is obtained.

Embodiment 3

[0027] Take 2.97g of 1,2,3,4-butanetetraol tetranitrate (ETN) and 2.02g of 2,4-dinitrotoluene (DNT) into a beaker and put them in a 90°C water bath. After the mixture is completely melted and mutually soluble, add 0.056g of 2-nitrodiphenylamine, 0.112g of diethyldiphenylurea and 0.448g of dioctyl sebacate (DOS), stir to make all substances completely soluble in each other, and form a clear solution, keep warm Stop heating after 15 minutes, and cool slowly at room temperature to obtain ETN-DNT eutectic energetic material.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
melting pointaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of energetic materials and relates to an ETN-DNT eutecticevaporate energetic material and a preparation method thereof. The ETN-DNT eutecticevaporate energetic material and the preparation method thereof aim at achieving the effects that the composite energetic material is low in sensitivity, high in energy, low in melting point and great in NC dissolving capacity. The ETN-DNT eutecticevaporate energetic material is prepared from, by mass, 20-70% of 1, 2, 3, 4-erythritol tetranitrate, 20-70% of 2, 4-dinitrotoluene, 1-5% of a stabilizing agent and 1-10% of a desensitization agent, wherein the stabilizing agent is a mixture of 2-nitrodiphenylamine and diethyl diphenyl urea, the 2-nitrodiphenylamine accounts for 20-80% the total mass of the stabilizing agent, and the diethyl diphenyl urea accounts for 20-80% the total mass of the stabilizing agent; the desensitization agent is one of or a mixture of dioctyl sebacate, glycerol triacetate or dimethyl phthalate. The energetic material has the advantages that detonation heat energy is maintained to be 5139 kJ / kg and above, detonation velocity energy is maintained to be 7008 m / s and above, and energy performance is high.

Description

technical field [0001] The invention belongs to the technical field of energetic materials, and relates to an ETN-DNT eutectic energetic material and a preparation method thereof. Background technique [0002] Energetic plasticizer is an important component in gunpowder. In double-base propellants, modified double-base propellants and double-base propellants, because the main component of nitrocellulose (NC) cannot be thermoplastic simply by increasing the temperature, a certain amount of plasticizer must be added to NC. Dissolving and plasticizing to facilitate processing and molding. The main plasticizer is nitroglycerin (NG), but because the solubility of pure NG to NC (especially the solubility of NC with high nitrogen content) is average, and the sensitivity of NG is extremely high, NG is used alone as a plasticizer to manufacture The gunpowder often has poor mechanical performance and safety performance. Therefore, it is usually necessary to add some auxiliary energ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C06B25/08
CPCC06B25/08
Inventor 宋小兰王毅安崇伟宋丹王晶禹
Owner ZHONGBEI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com