CN113480389A - Preparation method of high-explosive-capacity synergistic energetic micro-projectile - Google Patents
Preparation method of high-explosive-capacity synergistic energetic micro-projectile Download PDFInfo
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- CN113480389A CN113480389A CN202110779346.6A CN202110779346A CN113480389A CN 113480389 A CN113480389 A CN 113480389A CN 202110779346 A CN202110779346 A CN 202110779346A CN 113480389 A CN113480389 A CN 113480389A
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- energetic
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- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 230000002195 synergetic effect Effects 0.000 title claims description 13
- 239000000843 powder Substances 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 claims abstract description 15
- 239000011248 coating agent Substances 0.000 claims abstract description 14
- 238000000576 coating method Methods 0.000 claims abstract description 14
- 238000001035 drying Methods 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 229920002313 fluoropolymer Polymers 0.000 claims abstract description 9
- 239000004811 fluoropolymer Substances 0.000 claims abstract description 9
- 238000005469 granulation Methods 0.000 claims abstract description 8
- 230000003179 granulation Effects 0.000 claims abstract description 8
- 238000007385 chemical modification Methods 0.000 claims abstract description 5
- 239000004606 Fillers/Extenders Substances 0.000 claims abstract 3
- 238000005474 detonation Methods 0.000 claims abstract 2
- 229910052751 metal Inorganic materials 0.000 claims description 27
- 239000002184 metal Substances 0.000 claims description 27
- 229920000642 polymer Polymers 0.000 claims description 7
- -1 polytetrafluoroethylene Polymers 0.000 claims description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 5
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical group [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 claims description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 4
- 229910052731 fluorine Inorganic materials 0.000 claims description 4
- 239000011737 fluorine Substances 0.000 claims description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 2
- 229920001774 Perfluoroether Polymers 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Inorganic materials [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 claims description 2
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 claims description 2
- 239000010702 perfluoropolyether Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 235000013350 formula milk Nutrition 0.000 claims 4
- 235000020610 powder formula Nutrition 0.000 claims 1
- 239000012747 synergistic agent Substances 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 4
- 238000010923 batch production Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 2
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 239000000779 smoke Substances 0.000 abstract description 2
- 239000011593 sulfur Substances 0.000 abstract description 2
- 229910052717 sulfur Inorganic materials 0.000 abstract description 2
- 239000003380 propellant Substances 0.000 abstract 5
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 18
- 229920003225 polyurethane elastomer Polymers 0.000 description 15
- 238000003756 stirring Methods 0.000 description 12
- 238000005303 weighing Methods 0.000 description 9
- 239000002033 PVDF binder Substances 0.000 description 6
- 239000006087 Silane Coupling Agent Substances 0.000 description 6
- 230000006378 damage Effects 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 6
- 239000002002 slurry Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000006187 pill Substances 0.000 description 5
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000012467 final product Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- AXZAYXJCENRGIM-UHFFFAOYSA-J dipotassium;tetrabromoplatinum(2-) Chemical compound [K+].[K+].[Br-].[Br-].[Br-].[Br-].[Pt+2] AXZAYXJCENRGIM-UHFFFAOYSA-J 0.000 description 2
- VKJKEPKFPUWCAS-UHFFFAOYSA-M potassium chlorate Chemical compound [K+].[O-]Cl(=O)=O VKJKEPKFPUWCAS-UHFFFAOYSA-M 0.000 description 2
- 229910001487 potassium perchlorate Inorganic materials 0.000 description 2
- 239000012286 potassium permanganate Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000006479 redox reaction Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910001512 metal fluoride Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B33/00—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
- C06B33/06—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide the material being an inorganic oxygen-halogen salt
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
- C06B21/0033—Shaping the mixture
- C06B21/0066—Shaping the mixture by granulation, e.g. flaking
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B33/00—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
- C06B33/02—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide with an organic non-explosive or an organic non-thermic component
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a preparation method of a high-detonation-volume range-extending safe and environment-friendly firework propellant, and belongs to the technical field of fireworks and crackers. The firework propellant consists of a fluoropolymer-based safe and environment-friendly firework propellant basic formula and a high detonation volume range extender. Wherein the weight part ratio of the propellant formula system is 80-95 parts, the weight part ratio of the high-detonation-volume range extender is 5-15 parts, and the particle size is 10-70 mu m. The preparation method adopts the processes of chemical modification, coating, powder mixing, granulation, drying and the like, has simple process, no special process requirement and low cost, and is convenient for batch production. The obtained product has the advantages of no sulfur and nitrogen, little smoke, environmental protection, low mechanical sensitivity, high safety and the like, and can be widely applied to the production of the propellant for fireworks and crackers.
Description
Technical Field
The invention relates to a preparation method of a high-explosive-capacity synergistic energetic micro-projectile, belonging to the technical field of special damage.
Background
The energy-containing micro-projectile is a newly developed new concept energy-destroying material, and the principle is that after a high-molecular oxidant and a metal reducing agent are designed through a core-shell structure, rapid and violent redox reaction occurs under the initiation of high energy such as high-speed impact, high-temperature ignition or laser ignition, so that high temperature is released outwards, thousands of times of volume expansion is realized by utilizing the gaseous effect of metal fluoride under the high-temperature condition, so that overpressure effect is further generated, high-temperature and overpressure composite destroying effects are formed on a target, and the energy-containing micro-projectile has wide application prospect in the fields of air defense, reverse guidance, armor destruction and the like.
In recent years, a series of high-molecular-base energetic micro pill formulas are developed by research and development teams including Beijing university of science and engineering. The high molecular fluorine polymer based energetic micro-projectile has excellent comprehensive performance, especially safety performance and environmental protection performance. The basic principle of the formula is that the violent oxidation-reduction reaction between the high molecular fluorine polymer and the active metal instantly releases high temperature of more than 3000 ℃ to the outside so as to perform expansion work on air. However, the raw materials such as the high molecular fluorine polymer and the spherical active metal used in the formulation are expensive. In order to meet the requirements of wide popularization and application, key countermeasures need to be made on cost reduction. Among them, the reduction of the amount is one of the approaches to solve this problem. However, the dosage is reduced, and the problem of insufficient power is also brought. Aiming at the problems, on the premise of not reducing the total damage power, the formula of the fluoropolymer-based energetic micro-projectile with damage synergy per unit mass is developed, so that the formula has very important significance for reducing the dosage of the fluoropolymer-based energetic micro-projectile to realize cost control.
Disclosure of Invention
The invention aims to provide a high-explosive-capacity synergistic energetic micro-projectile, belonging to the technical field of special damage. The energetic micro-pellet consists of a basic formula of a fluorine polymer-based energetic micro-pellet and a high-explosive-volume synergist.
Wherein the weight part ratio of the basic formula of the fluorine polymer based energetic micro-projectile is 80-95 parts, the weight part ratio of the high-explosive-capacity synergist is 5-15 parts, and the particle size is 10-70 mu m. The preparation method adopts the processes of chemical modification, coating, powder mixing, granulation, drying and the like, has simple process, no special process requirement and low cost, and is convenient for batch production. The obtained product has the advantages of no sulfur and nitrogen, slight smoke, environmental protection, low mechanical sensitivity, high safety and the like, and can be widely applied to the production of energetic micro-projectile pills.
A preparation method of a high-detonation-volume-type synergistic energetic micro-projectile comprises the following steps:
the method comprises the following steps: obtaining an energetic micro-pellet basic formula A based on fluoropolymer/active metal powder by utilizing chemical modification, coating, powder mixing and drying processes;
and step two, adding a high-explosive-capacity synergist into the basic formula A of the energy-containing micro-projectile, and performing powder mixing and granulation processes to obtain the damage-gained energy-containing micro-projectile.
The fluorine polymer is perfluoropolyether, polyfluoroolefin, polyfluoroalkane, perfluoroalkoxy resin or polytetrafluoroethylene; the active metal powder is spherical aluminum powder or spherical magnesium powder;
the high-explosion-capacity synergist is chlorate, perchlorate or permanganate.
Advantageous effects
1. A high-explosive-capacity energetic micro-projectile consists of a fluoropolymer-based energetic micro-projectile basic formula and a high-explosive-capacity synergist. The conventional metal powder, high-molecular fluoropolymer, binder and high-detonation-volume synergist are used as raw materials; the process of chemical modification, coating, powder mixing, granulation, drying and the like is adopted, the process is simple, no special process requirement exists, the cost is low, and the batch production is convenient.
2. Compared with the conventional fluoropolymer/active metal powder system energetic micro-projectile, the high-explosive-capacity energetic micro-projectile prepared by the invention obviously improves the explosive capacity value and the damage effect, and can be widely applied to the production of energetic micro-projectiles.
Detailed Description
The present invention will be described in further detail with reference to specific examples, which are not intended to limit the present invention in any manner. Unless otherwise indicated, the various starting materials used in the examples of the present invention are either conventionally available commercially or prepared according to conventional methods in the art using equipment commonly used in the laboratory. Unless defined or stated otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
Example 1
A preparation method of a high-detonation-volume-type synergistic energetic micro-projectile comprises the following specific steps:
(1) modified coating
Surface modification: weighing 0.5 part of silane coupling agent, adding the silane coupling agent into 50mL of ethyl acetate, stirring for 0.5h, dispersing 30 parts of active metal powder into the solution under the protection of inert atmosphere, soaking for 6h, filtering and drying to obtain modified metal powder; wherein the particle size of the active metal powder is 10 mu m;
coating: weighing 3 parts of polyurethane elastomer, adding the polyurethane elastomer into 50mL of ethyl acetate, stirring until the polyurethane elastomer is completely dissolved, dispersing 30 parts of modified metal powder into the solution, stirring for 2 hours at the rotating speed of 200rpm/min, and obtaining the dispersion liquid of the metal powder coated by the polyurethane elastomer.
(2) Preparation by molding
Mixing powder: weighing 64 parts of polyvinylidene fluoride and 8 parts of high-explosive-capacity synergist potassium chlorate, adding the polyvinylidene fluoride and the high-explosive-capacity synergist potassium chlorate into the dispersion liquid obtained by coating the metal powder on the polyurethane elastomer, and stirring for 4 hours at the rotating speed of 200rpm/min to obtain slurry; wherein the particle size of the polyvinylidene fluoride powder is 160 mu m;
and (3) granulation: and extruding and granulating the obtained slurry through a granulator with a particle plate of 2mm, and drying the obtained particles at the drying temperature of 60 ℃ to obtain the final product.
Compared with the high-explosion-capacity synergist without the dosage, the hole expanding capacity of the energetic micro-pill with the mass of 1.5g on a 5mmQ235A steel plate is improved to 9.75mm from the original 7.81mm hole diameter, and is improved by 25%.
Example 2
A preparation method of a high-detonation-volume-type synergistic energetic micro-projectile comprises the following specific steps:
(1) modified coating
Surface modification: weighing 1 part of silane coupling agent, adding the silane coupling agent into 50mL of ethyl acetate, stirring for 0.5h, dispersing 40 parts of active metal powder into the solution under the protection of inert atmosphere, soaking for 6h, filtering and drying to obtain modified metal powder; wherein the particle size of the active metal powder is 10 mu m;
coating: weighing 2 parts of polyurethane elastomer, adding the polyurethane elastomer into 50mL of ethyl acetate, stirring until the polyurethane elastomer is completely dissolved, dispersing 40 parts of modified metal powder into the solution, stirring for 2 hours at the rotating speed of 200rpm/min, and obtaining the dispersion liquid of the metal powder coated by the polyurethane elastomer.
(2) Preparation by molding
Mixing powder: weighing 60 parts of polytetrafluoroethylene and 10 parts of potassium perchlorate as a high-explosive-capacity synergist, adding the polytetrafluoroethylene and the potassium perchlorate into the dispersion liquid obtained by coating the metal powder on the polyurethane elastomer, and stirring for 4 hours at the rotating speed of 200rpm/min to obtain slurry; wherein, the particle size of the polytetrafluoroethylene powder is 160 μm;
and (3) granulation: and extruding and granulating the obtained slurry through a granulator with a particle plate of 2mm, and drying the obtained particles at the drying temperature of 60 ℃ to obtain the final product.
Compared with the high-explosion-capacity synergist without the dosage, the hole expanding capacity of the energetic micro-pill with the mass of 1.5g on a 5mmQ235A steel plate is improved to 10.74mm from the original 8.26mm hole diameter, and is improved by 30%.
Example 3
A preparation method of a high-detonation-volume-type synergistic energetic micro-projectile comprises the following specific steps:
(1) modified coating
Surface modification: weighing 1 part of silane coupling agent, adding the silane coupling agent into 50mL of ethyl acetate, stirring for 0.5h, dispersing 36 parts of active metal powder into the solution under the protection of inert atmosphere, soaking for 6h, filtering and drying to obtain modified metal powder; wherein the particle size of the active metal powder is 10 mu m;
coating: weighing 1.5 parts of polyurethane elastomer, adding the polyurethane elastomer into 50mL of ethyl acetate, stirring until the polyurethane elastomer is completely dissolved, dispersing the 36 parts of modified metal powder into the solution, stirring for 2 hours at the rotating speed of 200rpm/min, and obtaining the dispersion liquid of the metal powder coated by the polyurethane elastomer.
(2) Preparation by molding
Mixing powder: weighing 48 parts of polyvinylidene fluoride and 12 parts of high-explosion-capacity synergist potassium permanganate, adding the polyvinylidene fluoride and the high-explosion-capacity synergist potassium permanganate into the dispersion liquid obtained by coating the metal powder on the polyurethane elastomer, and stirring for 4 hours at the rotating speed of 200rpm/min to obtain slurry; wherein the particle size of the polyvinylidene fluoride powder is 160 mu m;
and (3) granulation: and extruding and granulating the obtained slurry through a granulator with a particle plate of 2mm, and drying the obtained particles at the drying temperature of 60 ℃ to obtain the final product.
Compared with the high-explosive-capacity synergist without the dosage, the hole expanding capacity of the energetic micro-pill with the mass of 1.5g on a 5mmQ235A steel plate is improved to 13.16mm from the original 7.93mm hole diameter, and is improved by 66%.
The above detailed description is intended to illustrate the objects, aspects and advantages of the present invention, and it should be understood that the above detailed description is only exemplary of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (4)
1. A preparation method of a high-detonation-volume-type synergistic energetic micro-projectile is characterized in that the energetic micro-projectile is prepared by a fluoropolymer-based energetic micro-projectile basic formula and a high-detonation-volume synergist; wherein the weight part ratio of the basic formula system is 80-95 parts, and the weight part ratio of the high detonation volume range extender is 5-15 parts.
2. The preparation method of the high-explosive-capacity synergistic energetic micro-projectile as claimed in claim 1, characterized by comprising the following steps:
the method comprises the following steps: obtaining a fluorine polymer/active metal powder formula energetic micro-projectile basic formula A by utilizing chemical modification, coating, powder mixing and drying processes;
step two: the energetic micro-projectile base formula A is added with a high-detonation-volume synergist, and a synergistic energetic micro-projectile is obtained through powder mixing and granulation processes.
3. The method for preparing the high-detonation-volume-type synergistic energetic micro-projectile as claimed in claim 2, wherein the fluoropolymer is perfluoropolyether, polyfluoroolefin, polyfluoroalkane, perfluoroalkoxy resin or polytetrafluoroethylene; the active metal powder is spherical aluminum powder or spherical magnesium powder.
4. The method for preparing the high-detonation-volume synergistic energetic micro-projectile as claimed in any one of claims 1 to 3, wherein the high-detonation-volume synergistic agent is chlorate, perchlorate or permanganate.
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| CN202110779346.6A CN113480389A (en) | 2021-07-09 | 2021-07-09 | Preparation method of high-explosive-capacity synergistic energetic micro-projectile |
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| CN202110779346.6A CN113480389A (en) | 2021-07-09 | 2021-07-09 | Preparation method of high-explosive-capacity synergistic energetic micro-projectile |
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| CN202110779346.6A Pending CN113480389A (en) | 2021-07-09 | 2021-07-09 | Preparation method of high-explosive-capacity synergistic energetic micro-projectile |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1146757A (en) * | 1978-06-21 | 1983-05-24 | Philip D. Mitchell | Incendiary composition and process of production |
| CN109956844A (en) * | 2019-03-29 | 2019-07-02 | 中国工程物理研究院化工材料研究所 | A kind of preparation method of fluoropolymer/metal composite energetic material |
| CN112898105A (en) * | 2021-02-09 | 2021-06-04 | 北京理工大学 | Sulfur-free nitrogen-free high-temperature-resistant environment-friendly firework propellant and preparation method thereof |
-
2021
- 2021-07-09 CN CN202110779346.6A patent/CN113480389A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1146757A (en) * | 1978-06-21 | 1983-05-24 | Philip D. Mitchell | Incendiary composition and process of production |
| CN109956844A (en) * | 2019-03-29 | 2019-07-02 | 中国工程物理研究院化工材料研究所 | A kind of preparation method of fluoropolymer/metal composite energetic material |
| CN112898105A (en) * | 2021-02-09 | 2021-06-04 | 北京理工大学 | Sulfur-free nitrogen-free high-temperature-resistant environment-friendly firework propellant and preparation method thereof |
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Application publication date: 20211008 |