CN110343020A - A kind of preparation method of Nanometallization explosive - Google Patents

A kind of preparation method of Nanometallization explosive Download PDF

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Publication number
CN110343020A
CN110343020A CN201910746541.1A CN201910746541A CN110343020A CN 110343020 A CN110343020 A CN 110343020A CN 201910746541 A CN201910746541 A CN 201910746541A CN 110343020 A CN110343020 A CN 110343020A
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China
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explosive
nanometallization
metal powder
nano metal
fluoropolymer
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CN201910746541.1A
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Inventor
王军
师鹏翔
徐瑞娟
屈延阳
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Institute of Chemical Material of CAEP
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Institute of Chemical Material of CAEP
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Priority to CN201910746541.1A priority Critical patent/CN110343020A/en
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    • CCHEMISTRY; METALLURGY
    • C06EXPLOSIVES; MATCHES
    • C06BEXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B23/00Compositions characterised by non-explosive or non-thermic constituents
    • C06B23/001Fillers, gelling and thickening agents (e.g. fibres), absorbents for nitroglycerine
    • CCHEMISTRY; METALLURGY
    • C06EXPLOSIVES; MATCHES
    • C06BEXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B27/00Compositions containing a metal, boron, silicon, selenium or tellurium or mixtures, intercompounds or hydrides thereof, and hydrocarbons or halogenated hydrocarbons

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)

Abstract

The invention discloses a kind of preparation methods of Nanometallization explosive, it is sealed the following steps are included: Nano metal powder, explosive, fluoropolymer and binder are added in blending tank, then blending tank is placed on shake table, open power supply, adjust vibration frequency, amplitude and time of vibration, it is mixed after starting start button, according to the incorporation time of setting, complete the mixing of Nano metal powder, explosive and fluoropolymer, binder, composite mortar is formed, obtains Nanometallization explosive compound after dry.The present invention in order to improve metallic explosive release can characteristic, filler, raising ability and pressure output are used as using Nano metal powder and fluoropolymer.Meanwhile high viscosity and characteristic easy to reunite for Nano metal powder, preparing Nanometallization explosive using acoustic resonance hybrid technology realizes uniform mixing between Nano metal powder and blasting explosive granules.

Description

A kind of preparation method of Nanometallization explosive
Technical field
The present invention relates to the preparation technical fields of energetic material, and in particular to a kind of acoustic resonance is mixed with Nanometallization The method of explosive.
Background technique
Metallic explosive becomes weapon due to the diversification of high calorific value, positive pressure of shock wave duration length and damage effect Ammunition and material.Wherein mainly and in detonation product, environment oxygen etc. fires reaction to metal powder such as magnesium, aluminium, boron, puts Heat maintains high pressure, the condition of high temperature of long period out, increases weapons and ammunitions to the damage effectiveness of target.Metal powder mainly exists It reacts and releases energy with oxygen in explosive product, environment during secondary response.However in practical applications, due to explosive product It is limited with oxygen in environment, cause a large amount of metal powder not react completely, constrains energy release.Add in metallic explosive Entering oxidant can be improved the energy release of metallic explosive, pressure output and injures performance (ZL 201310101503.3).With Oxidant is compared, and fluorine and metal reaction can discharge higher energy, wherein energy of fluoropolymer/metal system containing energy due to superelevation Metric density and excellent reactivity worth are widely used in terms of solid propellant, explosive and reactivity.Such as poly- four Vinyl fluoride (PTFE)/Al compound system energy 21KJ/cm3, polytetrafluoroethylene (PTFE) (PTFE)/Mg energy density is 9.6KJ/g. Therefore, fluorization agent is introduced such as in metallic explosive will significantly improve energy output.
As nanotechnology develops instead, Nano metal powder is released energy characteristic and is obtained due to high reactivity and quick burning To extensive research and concern.The reaction of fluoropolymer metal material is intermolecular reaction, and energyreleaserate is conducted heat and passed The control of the physical processes such as matter can significantly improve combustion reaction and energy release so reducing the particle size of metal, fluoride Rate.Meanwhile doing for metallic explosive can be improved studies have shown that nanometer aluminium powder is added in explosive in M.F.Gogulya et al. Function power (acceleration capacity of explosive driving metal).Beijing Institute of Technology Chen Lang professor et al. result of study shows that nanometer aluminium powder can To increase substantially the acting ability of metallic explosive.However in practical applications the study found that one the problem of Nano metal powder It is that surface oxidation is serious, active quantities are lower, and when aluminum powder particle size is 50nm nanometers, active aluminium content is about 50%, in recent years This problem passes through the available basic solution of surface coating technology.Another question is that Nano metal powder is easy to reunite, It is difficult to be uniformly mixed with blasting explosive granules and binder system, this is the key that current limitation Nano metal powder applies bottle in weapon Neck.
The mixing preparation method of existing metallic explosive is mainly aqueous suspension granulation, mechanical stirring and screw mixes etc..It receives Rice metal powder activity is high, is easy reaction inactivation in water, therefore, aqueous suspension granulating technique for Nanometallization explosive, A possibility that application, is not high at present.Mechanical stirring is most common hybrid mode, mixes right and wrong for micron metal powder and explosive Normal effective method, but when particle size reduction to sub-micron (partial size is less than 1 micron), especially nano-scale of metal powder, Metal powder is reunited, and mixing time, which increases several times, all cannot achieve the uniform mixing of explosive and metal powder.The method pair of screw mixes It is more effective in the relatively low compound of viscosity and solid content, but the explosive that high solid this kind of for metallic explosive is particles filled Compound, it is difficult to ensure that component mixing uniformity, while the safety for being mixed with process be also limit its application it is important Factor.In recent years, serial achievement has been felt in terms of new manufacture by the military power headed by America and Europe, and such as liquor-saturated bucket is mixed without paddle Mode, axis stream is without paddle hybrid mode and centrifugation without paddle hybrid mode, acoustic resonance hybrid technology the most noticeable.Acoustic resonance is mixed Conjunction technology, which refers to, exports that close with by mixed material system resonant frequency or identical vibration frequency, realization material are equal using vibration excitor The novel hybrid technique of even dispersion.Acoustic resonance mixing has mixing velocity fast, and mixing uniformity is good, highly-safe, saving material, The features such as simple is cleaned, the hot spot of energetic material preparation research in recent years is become.
Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides a kind of preparation method of Nanometallization explosive, this method Using Nano metal powder and fluoropolymer as filler, improving releasing for metallic explosive can characteristic.
In order to reach above-mentioned technical effect, the present invention provides the following technical scheme that
A kind of preparation method of Nanometallization explosive, comprising the following steps: by Nano metal powder, explosive, fluoropolymer and Binder is added in blending tank and seals, and then blending tank is placed on shake table, opens power supply, adjusts vibration frequency, vibration Width and time of vibration are mixed after starting start button, according to the incorporation time of setting, complete Nano metal powder, explosive and The mixing of fluoropolymer, binder forms composite mortar, obtains Nanometallization explosive compound after dry.
Further technical solution is that the partial size of the Nano metal powder is 50-800nm.
Further technical solution is that the Nano metal powder is selected from one or both of nanometer aluminium powder, silicon or boron powder.
Further technical solution is that the explosive is any in TATB, LLM-105, FOX-7, CL-20, HMX, RDX It is one or two kinds of.
Further technical solution is that the fluoropolymer is any one in polytetrafluoroethylene (PTFE) or polychlorodifluoroethylene Kind.
Further technical solution is that the mass ratio of the Nano metal powder and fluoropolymer is 3:1-1:3.
Further technical solution is that the vibration frequency of the shake table is 30-160Hz, amplitude 0.3-0.6mm, vibration The dynamic time is 5-30min.
Compared with prior art, the invention has the following beneficial effects: the present invention is made using Nano metal powder and fluoropolymer For filler, during secondary response, fluoride is reacted with Nano metal powder, discharges high heat and gas, improves capacity for work It is exported with detonation pressure.Meanwhile Nanometallization explosive is prepared using acoustic resonance hybrid technology, by resonance mode without mixing, It realizes the uniform mixing between Nano metal powder and blasting explosive granules, solves the high viscosity of Nano metal powder and easy to reunite caused It is not easy uniformly mixed problem, and improving releasing for metallic explosive can characteristic.
Specific embodiment
The present invention is further explained and is illustrated combined with specific embodiments below.
Embodiment 1
Weigh 100gTATB explosive respectively, partial size is the aluminium powder 30g of 100nm, tetrafluoroethene 10g, and mass fraction is Sealing in blending tank is added in the binder solution 60mL of 5wt%.Power supply is opened, setting vibration frequency is 53Hz, and amplitude is 0.3mm, time of vibration 9min.Start button is clicked, stopping to be mixed being completed, and the slurry in blending tank is transferred to drying box Interior drying.The powder column that diameter is 20mm is pushed down into, testing quick-fried calorific value is 5465J/g.
Comparative examples 1, by 100g TATB explosive, the aluminium powder 30g and tetrafluoroethene that partial size is 100nm are that water is added in 10g Middle stirring, is added dropwise binder solution, and volatilization filtering is transferred to drying in drying box, obtains explosive compound, pushing down into diameter is The powder column of 20mm, testing quick-fried calorific value is 4860J/g.
Embodiment 2
100g LLM-105 explosive is weighed respectively, and partial size is the aluminium powder 20g of 100nm, tetrafluoroethene 10g, mass fraction To be sealed in the binder solution 60mL addition blending tank of 5wt%.Power supply is opened, setting vibration frequency is 50Hz, and amplitude is 0.5mm, time of vibration 9min.Start button is clicked, stopping to be mixed being completed, and the slurry in blending tank is transferred to drying box Interior drying.The powder column that diameter is 20mm is pushed down into, testing quick-fried calorific value is 5823J/g.
Comparative examples 2, by 100g LLM-105 explosive, the aluminium powder 20g and tetrafluoroethene that partial size is 100nm are that 10g adds Enter in water and stir, binder solution is added dropwise, volatilization filtering is transferred to drying in drying box, obtains explosive compound, push down into straight Diameter is the powder column of 20mm, and testing quick-fried calorific value is 5310J/g.
Embodiment 3
Weigh 100g FOX-7 explosive respectively, partial size is the aluminium powder 10g of 200nm, tetrafluoroethene 30g, and mass fraction is Sealing in blending tank is added in the binder solution 60mL of 5wt%.Power supply is opened, setting vibration frequency is 60Hz, and amplitude is 0.6mm, time of vibration 6min.Start button is clicked, stopping to be mixed being completed, and the slurry in blending tank is transferred to drying box Interior drying.The powder column that diameter is 20mm is pushed down into, testing quick-fried calorific value is 5281J/g.
Comparative examples 3, by 100g LLM-105 explosive, the aluminium powder 20g and tetrafluoroethene that partial size is 100nm are that 10g adds Enter in water and stir, binder solution is added dropwise, volatilization filtering is transferred to drying in drying box, obtains explosive compound, push down into straight Diameter is the powder column of 20mm, and testing quick-fried calorific value is 4903J/g.
Embodiment 4
Weigh 100g CL-20 explosive respectively, partial size is 800nm boron powder 20g, tetrafluoroethene 30g, mass fraction is Sealing in blending tank is added in the binder solution 40mL of 5wt%.Power supply is opened, setting vibration frequency is 60Hz, and amplitude is 0.4mm, time of vibration 5min.Start button is clicked, stopping to be mixed being completed, and the slurry in blending tank is transferred to drying box Interior drying.The powder column that diameter is 20mm is pushed down into, testing quick-fried calorific value is 6898J/g.
Embodiment 5
100g HMX explosive is weighed respectively, and partial size is the aluminium powder 20g and 10 boron powder of 50nm, tetrafluoroethene 30g, quality point Sealing in blending tank is added in the binder solution 60mL that number is 5wt%.Power supply is opened, setting vibration frequency is 20Hz, and amplitude is 0.6mm, time of vibration 10min.Start button is clicked, stopping to be mixed being completed, and the slurry in blending tank is transferred to drying It is dry in case.The powder column that diameter is 20mm is pushed down into, testing quick-fried calorific value is 6329J/g.
Embodiment 6
100g RDX explosive is weighed respectively, and partial size is silicon powder 10g and the 10g silicon powder of 300nm, tetrafluoroethene 30g, quality Sealing in blending tank is added in the binder solution 40mL that score is 5wt%.Power supply is opened, setting vibration frequency is 120Hz, amplitude For 0.3mm, time of vibration 6min.Start button is clicked, stopping to be mixed being completed, and the slurry in blending tank is transferred to drying It is dry in case.The powder column that diameter is 20mm is pushed down into, testing quick-fried calorific value is 6462J/g.
Embodiment 7
100gTATB explosive is weighed respectively, and partial size is silicon powder 20g and 10g the boron powder of 100nm, polychlorodifluoroethylene 10g, matter It measures the binder solution 60mL that score is 5wt% and sealing in blending tank is added.Power supply is opened, setting vibration frequency is 53Hz, vibration Width is 0.4mm, time of vibration 9min.Start button is clicked, stopping to be mixed being completed, the slurry in blending tank is transferred to dry It is dry in dry case.The powder column that diameter is 20mm is pushed down into, testing quick-fried calorific value is 5765J/g.
Comparative examples 7, by 100g TATB explosive, aluminium powder 20g that partial size is 100nm and with 10g boron powder, poly- difluoro chlorine Ethylene 10g is added to the water stirring, and binder solution is added dropwise, and volatilization filtering is transferred to drying in drying box, it is compound to obtain explosive Object pushes down into the powder column that diameter is 20mm, and testing quick-fried calorific value is 4890J/g.
Embodiment 8
Weigh 100g TATB explosive respectively, aluminium powder that partial size is 500nm and boron powder each 10g, polychlorodifluoroethylene 20g, matter It measures the binder solution 30mL that score is 5wt% and sealing in blending tank is added.Power supply is opened, setting vibration frequency is 160Hz, vibration Width is 0.5mm, time of vibration 2min.Start button is clicked, stopping to be mixed being completed, the slurry in blending tank is transferred to dry It is dry in dry case.The powder column that diameter is 20mm is pushed down into, testing quick-fried calorific value is 5923J/g.
Comparative examples 8, by 100g TATB explosive, partial size is the aluminium powder and each 10g of boron powder of 500nm, polychlorodifluoroethylene 20g is added to the water stirring, and binder solution is added dropwise, and volatilization filtering is transferred in drying box dry, acquisition explosive compound, pressure The powder column for being live in 20mm at diameter, testing quick-fried calorific value is 5309J/g.

Claims (7)

1. a kind of preparation method of Nanometallization explosive, which comprises the following steps: by Nano metal powder, explosive, Fluoropolymer and binder, which are added in blending tank, to be sealed, and then blending tank is placed on shake table, opens power supply, adjusts vibration Frequency, amplitude and time of vibration are mixed after starting start button, according to the incorporation time of setting, complete Nano metal powder, The mixing of explosive and fluoropolymer, binder forms composite mortar, obtains Nanometallization explosive compound after dry.
2. the preparation method of Nanometallization explosive according to claim 1, which is characterized in that the Nano metal powder Partial size is 50-800nm.
3. the preparation method of Nanometallization explosive according to claim 1, which is characterized in that the Nano metal powder choosing From one or both of nanometer aluminium powder, silicon or boron powder.
4. the preparation method of Nanometallization explosive according to claim 1, which is characterized in that the explosive is selected from Any one in TATB, LLM-105, FOX-7, CL-20, HMX, RDX or two kinds.
5. the preparation method of Nanometallization explosive according to claim 1, which is characterized in that the fluoropolymer is selected from Any one in polytetrafluoroethylene (PTFE) or polychlorodifluoroethylene.
6. the preparation method of Nanometallization explosive according to claim 1, which is characterized in that the Nano metal powder with The mass ratio of fluoropolymer is 3:1-1:3.
7. the preparation method of Nanometallization explosive according to claim 1, which is characterized in that the vibration of the shake table Frequency is 30-160 Hz, amplitude 0.3-0.6mm, time of vibration 5-30min.
CN201910746541.1A 2019-08-12 2019-08-12 A kind of preparation method of Nanometallization explosive Pending CN110343020A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110937963A (en) * 2019-12-10 2020-03-31 湖北航天化学技术研究所 Low-detonation-velocity mixed explosive and preparation method thereof
CN111019413A (en) * 2019-12-30 2020-04-17 安徽瑞合铁路紧固件科技有限公司 MoSi2Dacromet coating reinforced by SiC microparticles and coating method thereof
CN112479795A (en) * 2020-12-11 2021-03-12 西安近代化学研究所 Boron-containing explosive and preparation method thereof
CN113402348A (en) * 2021-07-20 2021-09-17 北京理工大学 Safe and environment-friendly explosive containing permanganate type explosion promoter and preparation method thereof
CN113416113A (en) * 2021-07-09 2021-09-21 北京理工大学 Preparation method of energetic micro-pill with warm-pressing effect
CN113480387A (en) * 2021-08-20 2021-10-08 北京理工大学 High-molecular fluorine-rich oxidant-based low-cost industrial explosive and preparation method thereof
CN113582790A (en) * 2021-08-20 2021-11-02 北京理工大学 Fluorine-rich oxidant-based industrial explosive and preparation method thereof
CN114634390A (en) * 2022-03-09 2022-06-17 中国工程物理研究院化工材料研究所 Preparation method of multi-element composite energetic microspheres
CN115322063A (en) * 2022-08-11 2022-11-11 湖北航天化学技术研究所 High polymer bonded explosive and preparation method thereof
CN115815607A (en) * 2022-12-21 2023-03-21 郑州磨料磨具磨削研究所有限公司 High-efficiency acoustic resonance mixing method for composite high-energy ball milling

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110937963A (en) * 2019-12-10 2020-03-31 湖北航天化学技术研究所 Low-detonation-velocity mixed explosive and preparation method thereof
CN110937963B (en) * 2019-12-10 2021-07-20 湖北航天化学技术研究所 Low-detonation-velocity mixed explosive and preparation method thereof
CN111019413A (en) * 2019-12-30 2020-04-17 安徽瑞合铁路紧固件科技有限公司 MoSi2Dacromet coating reinforced by SiC microparticles and coating method thereof
CN112479795A (en) * 2020-12-11 2021-03-12 西安近代化学研究所 Boron-containing explosive and preparation method thereof
CN113416113A (en) * 2021-07-09 2021-09-21 北京理工大学 Preparation method of energetic micro-pill with warm-pressing effect
CN113402348A (en) * 2021-07-20 2021-09-17 北京理工大学 Safe and environment-friendly explosive containing permanganate type explosion promoter and preparation method thereof
CN113480387A (en) * 2021-08-20 2021-10-08 北京理工大学 High-molecular fluorine-rich oxidant-based low-cost industrial explosive and preparation method thereof
CN113582790A (en) * 2021-08-20 2021-11-02 北京理工大学 Fluorine-rich oxidant-based industrial explosive and preparation method thereof
CN114634390A (en) * 2022-03-09 2022-06-17 中国工程物理研究院化工材料研究所 Preparation method of multi-element composite energetic microspheres
CN115322063A (en) * 2022-08-11 2022-11-11 湖北航天化学技术研究所 High polymer bonded explosive and preparation method thereof
CN115322063B (en) * 2022-08-11 2024-01-02 湖北航天化学技术研究所 Polymer bonded explosive and preparation method thereof
CN115815607A (en) * 2022-12-21 2023-03-21 郑州磨料磨具磨削研究所有限公司 High-efficiency acoustic resonance mixing method for composite high-energy ball milling

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Application publication date: 20191018