CN115838313A - Preparation method of safe and environment-friendly explosive containing permanganate type explosion promoter - Google Patents
Preparation method of safe and environment-friendly explosive containing permanganate type explosion promoter Download PDFInfo
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- CN115838313A CN115838313A CN202211396224.XA CN202211396224A CN115838313A CN 115838313 A CN115838313 A CN 115838313A CN 202211396224 A CN202211396224 A CN 202211396224A CN 115838313 A CN115838313 A CN 115838313A
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- 238000004880 explosion Methods 0.000 title claims abstract description 28
- 239000002360 explosive Substances 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000011230 binding agent Substances 0.000 claims abstract description 42
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 40
- 239000006185 dispersion Substances 0.000 claims abstract description 17
- 238000001035 drying Methods 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 12
- 238000002791 soaking Methods 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- 239000011268 mixed slurry Substances 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims abstract description 7
- 229920002313 fluoropolymer Polymers 0.000 claims abstract description 6
- 239000004811 fluoropolymer Substances 0.000 claims abstract description 6
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 42
- 238000003756 stirring Methods 0.000 claims description 27
- 239000002245 particle Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 14
- 229920000642 polymer Polymers 0.000 claims description 14
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 6
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 229920001568 phenolic resin Polymers 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 4
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 4
- 239000012286 potassium permanganate Substances 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- 239000011701 zinc Substances 0.000 claims description 4
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- 239000010941 cobalt Substances 0.000 claims description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- 238000000354 decomposition reaction Methods 0.000 claims description 3
- 239000005007 epoxy-phenolic resin Substances 0.000 claims description 3
- 239000010702 perfluoropolyether Substances 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 abstract description 15
- 239000000843 powder Substances 0.000 abstract description 14
- 230000000977 initiatory effect Effects 0.000 abstract description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 5
- 239000011593 sulfur Substances 0.000 abstract description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 4
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 229910052717 sulfur Inorganic materials 0.000 abstract description 4
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 2
- 235000010333 potassium nitrate Nutrition 0.000 abstract description 2
- 239000004323 potassium nitrate Substances 0.000 abstract description 2
- 239000000779 smoke Substances 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000005303 weighing Methods 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 239000002002 slurry Substances 0.000 description 6
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 3
- 239000002033 PVDF binder Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 239000012467 final product Substances 0.000 description 3
- 239000011737 fluorine Substances 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- 239000011812 mixed powder Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000005011 phenolic resin Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical compound [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229910052815 sulfur oxide Inorganic materials 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- AXZAYXJCENRGIM-UHFFFAOYSA-J dipotassium;tetrabromoplatinum(2-) Chemical compound [K+].[K+].[Br-].[Br-].[Br-].[Br-].[Pt+2] AXZAYXJCENRGIM-UHFFFAOYSA-J 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Inorganic materials [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 description 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 1
- VKJKEPKFPUWCAS-UHFFFAOYSA-M potassium chlorate Chemical compound [K+].[O-]Cl(=O)=O VKJKEPKFPUWCAS-UHFFFAOYSA-M 0.000 description 1
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical group [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 description 1
- 229910001950 potassium oxide Chemical group 0.000 description 1
- 229910001487 potassium perchlorate Inorganic materials 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 239000007787 solid Chemical group 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B43/00—Compositions characterised by explosive or thermic constituents not provided for in groups C06B25/00 - C06B41/00
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B23/00—Compositions characterised by non-explosive or non-thermic constituents
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B23/00—Compositions characterised by non-explosive or non-thermic constituents
- C06B23/001—Fillers, gelling and thickening agents (e.g. fibres), absorbents for nitroglycerine
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B27/00—Compositions containing a metal, boron, silicon, selenium or tellurium or mixtures, intercompounds or hydrides thereof, and hydrocarbons or halogenated hydrocarbons
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a preparation method of a safe and environment-friendly explosion-initiating agent containing permanganate type explosion-initiating agent, which comprises the steps of firstly adding an active metal reducing agent into silane coupling agent dispersion liquid, mixing and soaking for 1-6h, and then filtering and drying to obtain a modified reducing agent; adding the modified reducing agent into a solution of the binder, mixing and soaking for 1-6h to obtain a dispersion liquid of the binder coated reducing agent; adding the explosion promoter and the high-molecular fluoropolymer into the dispersion liquid of the binder-coated reducing agent, and mixing to obtain mixed slurry; and granulating and drying the mixed slurry to obtain the explosive. The traditional black powder can be replaced by the explosion initiating agent, substances which are extremely harmful to the environment and have higher sensitivity, such as potassium nitrate, sulfur and the like in the components of the explosion initiating agent are not needed, and the obtained product has the advantages of no sulfur, no nitrogen, little smoke, environmental friendliness, low mechanical sensitivity, high safety and the like, and has higher impact sensitivity while having high explosion initiating efficiency.
Description
The application is a divisional application of a patent application named 'safe and environment-friendly explosion-initiating medicine containing permanganate type explosion-promoting agent and a preparation method thereof', the original application date is 2021, 09, month and 17 days, and the application number is 202110821357.6.
Technical Field
The invention relates to the technical field of explosive, in particular to a preparation method of a safe and environment-friendly explosive containing permanganate type explosion promoter.
Background
Black powder is one of the important raw materials in the production of traditional fireworks and crackers. The black powder is formed by mixing three components of potassium nitrate (oxidant), charcoal (reductant) and sulfur (combustible), is low in price and convenient to manufacture, but the black powder can generate a large amount of black smoke during combustion to influence the setting-off effect of fireworks, the combustion is incomplete, a large amount of carbon, sulfur and potassium oxides and solid residues can be generated in residues to seriously pollute the environment, in addition, in the aspect of safety, the mechanical sensitivity of the black powder is high, and the black powder can be ignited or exploded when being subjected to strong impact or friction, so that the safety is low in the production and transportation processes, and great danger is brought to the life and property of people.
In the existing explosive technology, the accelerators are potassium perchlorate, potassium chlorate and other oxidants, but the substances have high impact sensitivity and are easy to react violently under the condition of accidental impact, thereby bringing serious potential safety hazards to application, and the explosion accidents are frequent.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a preparation method of a safe and environment-friendly explosion initiating explosive without sulfur and nitrogen elements, wherein the explosion initiating explosive is a fluorine polymer type explosion initiating explosive and contains a reducing agent formed by metal or a mixture thereof, a permanganate type oxide explosion promoter, a binder and fluorine polymer, so that the problems of large pollution, high mechanical sensitivity, high static and spark sensitivity, low safety in the production and transportation processes and the like caused by using black powder for fireworks and crackers in the prior art can be solved, and the impact sensitivity can be further improved while the explosion efficiency is improved.
In order to achieve the purpose, the invention provides the following scheme:
a preparation method of a safe and environment-friendly explosion-initiating medicament containing permanganate type explosion-promoting agents comprises the following steps:
(1) Adding a silane coupling agent into ethyl acetate, uniformly stirring, dispersing an active metal reducing agent with the particle size of 10-75 mu m into a solution under the protection of inert atmosphere, stirring and soaking at the speed of 100-200rpm for 1-6h, filtering and drying to obtain a modified active reducing agent;
(2) Adding the binder into ethyl acetate, and stirring at the speed of 100-200rpm for 1-6h until the binder is completely dissolved to obtain a binder solution;
(3) Dispersing the modified active reducing agent into the binder solution, stirring and soaking at the speed of 100-200rpm for 1-6h to obtain a binder-coated reducing agent dispersion liquid;
(4) Adding a permanganate type explosion promoter with the particle size of 10-120 mu m and a high polymer fluorine polymer with the particle size of 50-400 mu m into the dispersion liquid, and stirring for a certain time to obtain mixed slurry;
(5) And extruding and granulating the obtained mixed slurry through a granulator, and drying to obtain the explosive.
Preferably, the solvent used for the silane coupling agent dispersion liquid and the solvent used for the binder solution are both selected from ethyl acetate.
Preferably, the decomposition temperature of the high molecular fluoropolymer is greater than 400 ℃.
Preferably, the binder is selected from one or more of polyvinyl alcohol, epoxy resin and phenolic resin.
Preferably, the active metal reducing agent is selected from aluminium powder and/or magnesium powder.
Preferably, the explosion promoter is selected from one or more of potassium permanganate, lead permanganate, zinc permanganate and cobalt permanganate.
Preferably, the high molecular fluorine polymer is selected from one or more of perfluoropolyether, polyvinylidene fluoride, polyfluoroolefin and polyfluoroalkane.
Preferably, the raw materials comprise the following components in parts by mass: 0.5-3 parts of silane coupling agent, 0.5-5 parts of binder, 10-100 parts of active reducing agent, 5-50 parts of explosion promoter and 20-75 parts of high-molecular fluorine polymer.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the invention uses the high molecular fluorine polymer as the raw material of the explosive, which has better thermal stability (the decomposition temperature is generally above 400 ℃), anti-aging performance and chemical stability, the heat of formation of the oxide is larger than that of the fluoride generated by the reaction of the metal powder, a large amount of heat can be released (the heat of explosion can reach 2150 kcal/kg), and meanwhile, the invention has better compatibility with other components, excellent long-term storage performance and better formability. In addition, the combustion products of the high molecular fluorine polymer/active metal powder are carbon and fluoride particles, toxic and harmful gases such as sulfur oxides, nitrogen oxides and the like are not generated, the environment is protected, and in the aspect of safety, the high molecular fluorine polymer/active metal powder shows obvious insensitive to mechanical impact and thermal action, so that the safety is high in the production and transportation processes; based on the advantages, the black powder can completely replace the traditional black powder;
the permanganate type explosion promoter used in the invention has lower sensitivity compared with perchlorate and chlorate, has stable physical and chemical properties at normal temperature, has better thermal stability and mechanical stability, can generate violent redox reaction with reducing metal magnesium powder, aluminum powder, zinc powder and the like at higher temperature, and has higher explosion initiating efficiency.
In some specific embodiments, according to a test method of GJB 772A-1997 mechanical sensitivity, the impact sensitivity of the explosive prepared by the method is 6% -2%, the friction sensitivity is 0%, and the safety performance is obviously improved compared with that of the traditional fireworks explosive.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The terms "first," "second," "third," and "fourth," etc. in the description and claims of this application are used for distinguishing between different objects and not necessarily for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, the inclusion of a list of steps, processes, methods, etc. is not limited to only those steps recited, but may alternatively include additional steps not recited, or may alternatively include additional steps inherent to such processes, methods, articles, or devices.
The present invention will be described in further detail with reference to specific embodiments in order to make the above objects, features and advantages more apparent and understandable.
According to the technical scheme of the invention, the preparation method of the safe and environment-friendly explosion-initiating medicament containing the permanganate type explosion-promoting agent comprises the following steps:
(1) Adding a silane coupling agent into ethyl acetate, uniformly stirring, dispersing an active metal reducing agent with the particle size of 10-75 mu m into a solution under the protection of inert atmosphere, stirring and soaking at the speed of 100-200rpm for 1-6h, filtering and drying to obtain a modified active reducing agent;
(2) Adding the binder into ethyl acetate, and stirring at the speed of 100-200rpm for 1-6h until the binder is completely dissolved to obtain a binder solution;
(3) Dispersing the modified active reducing agent into the binder solution, stirring and soaking at the speed of 100-200rpm for 1-6h to obtain a binder-coated reducing agent dispersion liquid;
(4) Adding a permanganate type explosion promoter with the particle size of 10-120 mu m and a high polymer fluoropolymer with the particle size of 50-400 mu m into the dispersion, and stirring for a certain time to obtain mixed slurry;
(5) Extruding and granulating the obtained mixed slurry through a granulator, and drying to obtain the explosive;
wherein, preferably, the soaking time in the step (3) is 1-3h;
wherein, the binder can be selected from one or more of polyvinyl alcohol, epoxy resin and phenolic resin;
the active metal reducing agent can be selected from aluminum powder and/or magnesium powder;
the explosion promoter can be one or more of potassium permanganate, lead permanganate, zinc permanganate and cobalt permanganate;
the high molecular fluorine polymer is one or more selected from perfluoropolyether, polyvinylidene fluoride, polyfluoroolefin and polyfluoroalkane.
The raw materials in parts by mass can be as follows: 0.5-3 parts of silane coupling agent, 0.5-5 parts of binder, 10-100 parts of active reducing agent, 5-50 parts of explosion promoter and 20-75 parts of high-molecular fluorine polymer.
In the above specific embodiment, the present invention further provides the following examples, wherein the parts used in the examples all represent parts by mass:
example 1
The explosive is prepared by the following steps:
(1) Modification of reducing agents
Weighing 0.5 part of silane coupling agent KH-550, adding into ethyl acetate, stirring for 0.5h, dispersing 10 parts of spherical aluminum powder and 32 parts of magnesium powder with the particle sizes of 10 mu m into the solution under the protection of inert atmosphere, soaking for 2h, filtering and drying to obtain a modified reducing agent;
(2) Coating of
Weighing 1.5 parts of binder polyvinyl alcohol (molecular weight is 1000-3000) and adding the binder polyvinyl alcohol into ethyl acetate, stirring until the binder polyvinyl alcohol is completely dissolved, dispersing the obtained modified reducing agent into the solution, and stirring for 2 hours to obtain a dispersion liquid of the binder coated reducing agent;
(3) Mixed powder
Weighing 35 parts of polyvinylidene fluoride powder with the particle size of 160 mu m and 21 parts of an explosion promoter KMnO4, adding into the dispersion liquid obtained by coating the reducing agent with the binder, and stirring for 4 hours to obtain slurry;
(3) Granulating
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.
Example 2
The explosive is prepared by the following steps:
(1) Modification of reducing agents
Weighing 1 part of silane coupling agent KH-550, adding into ethyl acetate, stirring for 0.5h, dispersing 12 parts of spherical aluminum powder and 30 parts of magnesium powder with the particle sizes of 10 mu m into the solution under the protection of inert atmosphere, soaking for 2h, filtering and drying to obtain a modified reducing agent;
(2) Coating of
Weighing 2 parts of binder epoxy resin (with the molecular weight of 1000-3000), adding the binder epoxy resin into ethyl acetate, stirring until the binder epoxy resin is completely dissolved, dispersing 32 parts of the obtained modified reducing agent into the solution, and stirring for 2 hours to obtain a dispersion liquid of the binder coated reducing agent;
(3) Mixed powder
Weighing 30 parts of polytetrafluoroethylene with the particle size of 160 mu m and 35 parts of explosion promoter Pb (MnO) 4 ) 2 Adding the mixture into dispersion liquid obtained by coating a reducing agent with the binder, and stirring for 4 hours to obtain slurry;
(4) Granulating
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.
Example 3
The explosive is prepared by the following steps:
(1) Modification of reducing agents
Weighing 1 part of silane coupling agent KH-550, adding into ethyl acetate, stirring for 0.5h, dispersing 8 parts of spherical aluminum powder and 22 parts of magnesium powder with particle sizes of 10 mu m into the solution under the protection of inert atmosphere, soaking for 2h, filtering and drying to obtain a modified reducing agent;
(2) Coating of
Weighing 2 parts of binder phenolic resin (with the molecular weight of 1000-3000), adding the binder phenolic resin into ethyl acetate, stirring until the binder phenolic resin is completely dissolved, dispersing 30 parts of the obtained modified reducing agent into the solution, and stirring for 2 hours to obtain a dispersion liquid of the binder coated reducing agent;
(3) Mixed powder
50 parts of polytetrafluoroethylene with the particle size of 160 mu m and 17 parts of explosion promoter Zn (MnO) 4 ) 2 Adding the mixture into a dispersion liquid obtained by coating a reducing agent with the binder, and stirring for 4 hours to obtain slurry;
(4) Granulating
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.
According to the test method of GJB 772A-1997 mechanical sensitivity, the impact sensitivity of the explosive prepared by the embodiment is 6% -2% and the friction sensitivity is 0% by adopting a 10Kg drop hammer with a drop height of 25cm, and the safety performance is obviously improved compared with the traditional firework explosive.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (8)
1. A preparation method of a safe and environment-friendly explosion-initiating agent containing permanganate type explosion-initiating agent is characterized by comprising the following steps:
(1) Adding a silane coupling agent into ethyl acetate, uniformly stirring, dispersing an active metal reducing agent with the particle size of 10-75 mu m into a solution under the protection of inert atmosphere, stirring and soaking at the speed of 100-200rpm for 1-6h, filtering and drying to obtain a modified active reducing agent;
(2) Adding the binder into ethyl acetate, and stirring at the speed of 100-200rpm for 1-6h until the binder is completely dissolved to obtain a binder solution;
(3) Dispersing the modified active reducing agent into the binder solution, stirring and soaking at the speed of 100-200rpm for 1-6h to obtain a binder-coated reducing agent dispersion liquid;
(4) Adding a permanganate type explosion promoter with the particle size of 10-120 mu m and a high polymer fluoropolymer with the particle size of 50-400 mu m into the dispersion, and stirring for a certain time to obtain mixed slurry;
(5) And extruding and granulating the obtained mixed slurry through a granulator, and drying to obtain the explosive.
2. The method according to claim 1, wherein the solvent used for the silane coupling agent dispersion liquid and the solvent used for the binder solution are each selected from ethyl acetate.
3. The method according to claim 1, wherein the decomposition temperature of the high molecular fluoropolymer is more than 400 ℃.
4. The method according to claim 1, wherein the binder is selected from one or more of polyvinyl alcohol, epoxy resin and phenolic resin.
5. The method according to claim 1, wherein the active metal reducing agent is selected from aluminum powder and/or magnesium powder.
6. The preparation method according to claim 1, wherein the explosion promoter is selected from one or more of potassium permanganate, lead permanganate, zinc permanganate and cobalt permanganate.
7. The method according to claim 1, wherein the high molecular weight fluoropolymer is one or more selected from perfluoropolyethers, polyvinylidene fluorides, polyfluoroolefins, and polyfluoroalkanes.
8. The preparation method according to claim 1, characterized in that the raw materials comprise, in parts by mass: 0.5-3 parts of silane coupling agent, 0.5-5 parts of binder, 10-100 parts of active reducing agent, 5-50 parts of explosion promoter and 20-75 parts of high-molecular fluorine polymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211396224.XA CN115838313A (en) | 2021-07-20 | 2021-07-20 | Preparation method of safe and environment-friendly explosive containing permanganate type explosion promoter |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211396224.XA CN115838313A (en) | 2021-07-20 | 2021-07-20 | Preparation method of safe and environment-friendly explosive containing permanganate type explosion promoter |
| CN202110821357.6A CN113402348A (en) | 2021-07-20 | 2021-07-20 | Safe and environment-friendly explosive containing permanganate type explosion promoter and preparation method thereof |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110821357.6A Division CN113402348A (en) | 2021-07-20 | 2021-07-20 | Safe and environment-friendly explosive containing permanganate type explosion promoter and preparation method thereof |
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| Publication Number | Publication Date |
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| CN115838313A true CN115838313A (en) | 2023-03-24 |
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| CN202211396224.XA Pending CN115838313A (en) | 2021-07-20 | 2021-07-20 | Preparation method of safe and environment-friendly explosive containing permanganate type explosion promoter |
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| CN1076436A (en) * | 1992-03-19 | 1993-09-22 | 项世文 | The safety fireworks firecracker gunpowder that does not contain sulphur and carbon |
| CN1095366A (en) * | 1993-05-17 | 1994-11-23 | 贾雪芬 | The miniature colour firecracker of a kind of safety, toxicological harmless |
| AR034383A1 (en) * | 2002-06-06 | 2004-02-18 | Sonsino Mario Nestor | METHOD FOR THE PRODUCTION OF OXYGEN, FULLY SATURATED WATER VAPOR, THROUGH REAGENT REVENUE ONLY ONCE (BATCH REACTION) |
| CN103848705A (en) * | 2012-12-07 | 2014-06-11 | 李云飞 | Safe firework and gunpowder |
| CN105753615A (en) * | 2014-12-19 | 2016-07-13 | 天津中冶天管环保资源开发有限公司 | Sulfur-free firework |
| RU2625866C2 (en) * | 2015-12-23 | 2017-07-19 | Акционерное общество "Военно-промышленная корпорация "Научно-производственное объединение машиностроения" | Method for cleaning containers of liquid rockets from components of rocket fuel after starting |
| CN106187650B (en) * | 2016-07-25 | 2018-02-27 | 万载县建坤化工有限公司 | Fireworks and firecrackers opens quick-fried medicament composition |
| CN106905087B (en) * | 2017-04-11 | 2019-03-08 | 浏阳市颐和隆烟花集团有限公司 | A kind of fireworks and firecrackers opens packet insensitiveness composite material |
| CN108917491A (en) * | 2018-09-17 | 2018-11-30 | 浏阳市鼎腾烟花有限公司 | A kind of fireworks bullet device of interior ectosphere multilayer multiple-effect modeling structure |
| CN110343020A (en) * | 2019-08-12 | 2019-10-18 | 中国工程物理研究院化工材料研究所 | A kind of preparation method of Nanometallization explosive |
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| CN1182727A (en) * | 1996-09-19 | 1998-05-27 | 帝国化学工业(加拿大)有限公司 | Detonators comprising high energy pyrotechnic |
| CN103206900A (en) * | 2012-01-16 | 2013-07-17 | 南京理工大学 | Display shell preparation method for increasing explosion diameter |
| 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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