CN110357752A - A kind of method that quick preparation uniformly coats energetic material - Google Patents
A kind of method that quick preparation uniformly coats energetic material Download PDFInfo
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- CN110357752A CN110357752A CN201910754982.6A CN201910754982A CN110357752A CN 110357752 A CN110357752 A CN 110357752A CN 201910754982 A CN201910754982 A CN 201910754982A CN 110357752 A CN110357752 A CN 110357752A
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- energetic material
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- 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
- C06B21/0083—Treatment of solid structures, e.g. for coating or impregnating with a modifier
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- 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
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- Crystallography & Structural Chemistry (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention discloses a kind of methods that quickly preparation uniformly coats energetic material, are related to composite material containing energy technical field.Suitable for most of common energetic material not soluble in water, using simple solution agitating, using catechol group in the aqueous solution with oxidant rapid polymerization principle, one layer can be formed uniformly and the controllable clad of thickness in energetic material plane of crystal in 0.5min~20min.Fast preparation method of the invention will not generate other adverse effects to energetic material, the clad of formation and the clad that common preparation method is formed are almost consistent, so that preparing uniform clad on energetic material surface becomes quick and controllable, the material preparation process period is greatly shortened.
Description
Technical field
The present invention relates to composite material containing energy technical fields, and in particular to a kind of quickly prepare uniformly coats energetic material
Method has preferable in the formulas design such as the raw material disposal of energetic material and batch preparation, desensitized explosive, low Vulnerability Explosive
Application prospect.
Background technique
With the development of energetic material, every country increasingly pays close attention to the research of Desensitive ammunition and blunt material, low easy
Energetic material after usually using cladding drop sense in the formula design of damage explosive or insensitive explosives is as raw material.Cladding drop sense
Energetic material need with surface coating layer dense uniform and content it is few, the influence to itself detonation property is in controlled range
Etc. characteristics, make to coat energetic material and be widely used in the castexplosive of weapon system, cast PBX explosive, propellant and civilian quick-fried
In broken explosive formulation, the development of low rapid wear ammunition is promoted.
In research before and in the patent of invention of application, contain in the protein of mussel secretion in discovery nature
Pyrocatechol substance may occur from poly- reaction under the conditions of certain environment, form close clad on many kinds of substance surface, benefit
One layer of thin and dense clad can be formed on explosive crystal surface with this simple self-polymeric reaction, its drop sense can be played and made
With, but the method preparation process takes a long time, generally according to the thickness controllable reaction time that autohemagglutination forms film be 1h~
72h, and react and need continuous uninterrupted, for being stirred to react of this kind of dangerous substance of energetic material, prolonged reaction increases
Process hazard factor and risk are added, certain puzzlement are caused to the preparation of high-volume raw material.
Summary of the invention
The purpose of the present invention is to provide a kind of method that quickly preparation uniformly coats energetic material, the present invention is wide with application
General a variety of energetic materials not soluble in water are matrix, uniformly coat energetic material in a kind of fast reaction method, make its table
Face forms one layer and stablizes fine and close and controllable thickness surface coating layer, and modified energetic material is enable to bear the extraneous machine of greater strength
Tool stimulation and adverse circumstances provide a kind of modified cladding raw material of good performance to meet low vulnerability ammunition.
To achieve the goals above, the invention adopts the following technical scheme:
A kind of method that quick preparation uniformly coats energetic material, coat the preparation method of energetic material according to the following steps into
Row:
Step 1: the alkaline solution that configuration pH is 8~11；
Step 2: the oxidant of 20mmol/L~800mmol/L being added in the alkaline solution that step 1 configures, is completely dissolved
In alkaline solution；
Step 3: the energetic material of weighing is placed in the resulting solution of step 2, using blender with 100r/min~
The revolving speed of 1000r/min is stirred dispersion liquid, soaks energetic material particle surface cmpletely with solution；
Step 4: the pyrocatechol substance that concentration is 10mmol/L~400mmol/L is added in step 3 gained dispersion liquid,
Stirring is allowed to be completely dissolved；
Step 5: step 4 gained mixed dispersion liquid is continued to use into blender with the revolving speed of 100r/min~1000r/min
Stirring；
Step 6: suction filtration cleaning will be carried out after the completion of the resulting mixed dispersion liquid stirring of step 5；
Step 7: the material after cleaning being placed in baking oven dry 0.5h~for 24 hours, obtains cladding energetic material.
In the step 1, the alkaline solution of configuration is trishydroxymethylaminomethane alkaline buffer solution, sodium bicarbonate is weak
Alkaline solution, ammonium hydroxide, sodium hydroxide or potassium hydroxide strong alkali solution.
In the step 2, the oxidant is sodium metaperiodate, ammonium persulfate, hydrogen peroxide or copper sulphate.
In the step 3, the energetic material is octogen, heisuojin or CL-20 explosive material not soluble in water.
In the step 4, the pyrocatechol substance is Dopamine hydrochloride.
In the step 5, mixing time is 0.5min~20min.
In the step 6, the cleaning is to be respectively washed 1~5 time using distilled water and ethyl alcohol.
In the step 7, the temperature setting in the baking oven is 50 DEG C~80 DEG C.
The present invention also provides a kind of low sensitivity high intensity octogen based composites, and the composite material is by this hair
What a kind of preparation method of bright above-mentioned low sensitivity high intensity octogen based composites was prepared.
Compared with the prior art, the invention has the beneficial effects that:
After 1. the invention patent in reaction solution by adding a certain amount of oxidant, when can greatly shorten reaction
Between, it completes the control of energetic material preparation time in 0.5min~20min, has to the engineering preparation of cladding energetic material
Preferable actual application prospect.
2. Quick uniform of the present invention coats energetic material preparation method simple process, it need to only be stirred in the solution of configuration and be
Can, it can prepare in batches on a large scale, and the reaction time is short, reduce the risk point of reaction process；Pyrocatechol substance is by phenol hydroxyl
After base is oxidized to quinonyl, intermolecular interaction, which is formed, to be stacked, and eventually forms polymer.Oxidant is added in reaction solution
Afterwards, the reaction speed that phenolic hydroxyl group can be made to be oxidized to quinonyl greatly improves, so that the reaction that is swift in response, when shortening polymerization reaction
Between, the reaction solution without adding oxidant can only come slowly to aoxidize phenolic hydroxyl group by the faint aerobic environment contained in air
Group, therefore, polymerization rate are slower.
3. fast preparation method of the present invention is suitable for most of energetic material particle not soluble in water, universality is strong.
4. the resulting energetic material surface of fast preparation method cladding of the present invention is with lower mechanical sensitivity and preferably
Surface wettability.
Detailed description of the invention
Fig. 1 is the electron scanning micrograph of Coated HMX (HMX) crystal quickly prepared in embodiment 1.
Fig. 2 is the electron scanning micrograph of cladding heisuojin (RDX) crystal quickly prepared in embodiment 2.
Fig. 3 is the electron scanning micrograph of the cladding CL-20 crystal quickly prepared in embodiment 3.
Specific embodiment
The present invention will be further described with reference to the examples below, and described embodiment is only present invention a part
Embodiment is not whole embodiment.Based on the embodiments of the present invention, those skilled in the art are not making
Other embodiments used obtained, belong to protection scope of the present invention under the premise of creative work.
Embodiment 1
Step 1: configuring the Tris solution 30mL of 100mmol/L, solution ph 8.5；
Step 2: the sodium metaperiodate of 80mmol/L being added in 30mL solution, is dissolved completely in solution；
Step 3: 10g HMX being placed in the solution of above-mentioned configuration, stirred and mixed with the revolving speed of 200r/min using blender
Dispersion liquid is closed, soaks blasting explosive granules surface cmpletely with solution；
Step 4: the Dopamine hydrochloride that concentration is 40mmol/L being added in above-mentioned mixed dispersion liquid, stirring is allowed to completely molten
Solution；
Step 5: above-mentioned mixed dispersion liquid is continued to use into blender and is stirred with the revolving speed of 300r/min, time 2min；
Step 6: the dispersion liquid after the completion of stirring being subjected to suction filtration cleaning, is respectively washed 2 times using distilled water and ethyl alcohol；
Step 7: the material after cleaning being placed in 50 DEG C of baking ovens dry 5h, obtains cladding HMX material.
Electron scanning micrograph such as Fig. 1 institute of Coated HMX (HMX) crystal quickly prepared in embodiment 1
Show.
Embodiment 2
Step 1: configuring the Tris solution 50mL of 200mmol/L, solution ph 8.7；
Step 2: the sodium metaperiodate of 80mmol/L being added in 50mL solution, is dissolved completely in solution；
Step 3: 20g RDX being placed in the solution of above-mentioned configuration, stirred and mixed with the revolving speed of 100r/min using blender
Dispersion liquid is closed, soaks blasting explosive granules surface cmpletely with solution；
Step 4: the Dopamine hydrochloride that concentration is 40mmol/L being added in above-mentioned mixed dispersion liquid, stirring is allowed to completely molten
Solution；
Step 5: above-mentioned mixed dispersion liquid is continued to use into blender and is stirred with the revolving speed of 800r/min, time 2min；
Step 6: the dispersion liquid after the completion of stirring being subjected to suction filtration cleaning, is respectively washed 2 times using distilled water and ethyl alcohol；
Step 7: the material after cleaning being placed in 80 DEG C of baking ovens dry 0.5h, obtains cladding RDX material.
The electron scanning micrograph of cladding heisuojin (RDX) crystal quickly prepared in embodiment 2 is as shown in Figure 2.
Embodiment 3
Step 1: configuring the Tris solution 50mL of 200mmol/L, solution ph 9.7；
Step 2: the sodium metaperiodate of 160mmol/L being added in 50mL solution, is dissolved completely in solution；
Step 3: 20g CL-20 being placed in the solution of above-mentioned configuration, stirred using blender with the revolving speed of 1000r/min
Mixed dispersion liquid soaks blasting explosive granules surface cmpletely with solution；
Step 4: the Dopamine hydrochloride that concentration is 80mmol/L being added in above-mentioned mixed dispersion liquid, stirring is allowed to completely molten
Solution；
Step 5: above-mentioned mixed dispersion liquid is continued to use into blender and is stirred with the revolving speed of 1000r/min, time 1min；
Step 6: the dispersion liquid after the completion of stirring being subjected to suction filtration cleaning, is respectively washed 5 times using distilled water and ethyl alcohol；
Step 7: the material after cleaning being placed in 50 DEG C of baking ovens dry 5h, obtains cladding CL-20 material.
The electron scanning micrograph of the cladding CL-20 crystal quickly prepared in embodiment 3 is as shown in Figure 3.
Embodiment 4
Step 1: configuring the Tris solution 30mL of 200mmol/L, solution ph 10.2；
Step 2: the sodium metaperiodate of 80mmol/L being added in 30mL solution, is dissolved completely in solution；
Step 3: 10g CL-20 being placed in the solution of above-mentioned configuration, stirred using blender with the revolving speed of 100r/min
Mixed dispersion liquid soaks blasting explosive granules surface cmpletely with solution；
Step 4: the Dopamine hydrochloride that concentration is 40mmol/L being added in above-mentioned mixed dispersion liquid, stirring is allowed to completely molten
Solution；
Step 5: above-mentioned mixed dispersion liquid is continued to use into blender and is stirred with the revolving speed of 300r/min, time 5min；
Step 6: the dispersion liquid after the completion of stirring being subjected to suction filtration cleaning, is respectively washed 3 times using distilled water and ethyl alcohol；
Step 7: the material after cleaning being placed in drying in 50 DEG C of baking ovens and for 24 hours, obtains cladding CL-20 material.
Embodiment 5
Step 1: configuring the Tris solution 30mL of 100mmol/L, solution ph 8.5；
Step 2: the sodium metaperiodate of 800mmol/L being added in 30mL solution, is dissolved completely in solution；
Step 3: 10g HMX being placed in the solution of above-mentioned configuration, stirred and mixed with the revolving speed of 200r/min using blender
Dispersion liquid is closed, soaks blasting explosive granules surface cmpletely with solution；
Step 4: the Dopamine hydrochloride that concentration is 400mmol/L being added in above-mentioned mixed dispersion liquid, stirring is allowed to complete
Dissolution；
Step 5: above-mentioned mixed dispersion liquid being continued to use into blender and is stirred with the revolving speed of 500r/min, the time is
0.5min；
Step 6: the dispersion liquid after the completion of stirring being subjected to suction filtration cleaning, is respectively washed 2 times using distilled water and ethyl alcohol；
Step 7: the material after cleaning being placed in 50 DEG C of baking ovens dry 5h, obtains cladding HMX material.
Embodiment 6
Step 1: configuring the Tris solution 100mL of 100mmol/L, solution ph 8.5；
Step 2: the sodium metaperiodate of 20mmol/L being added in 100mL solution, is dissolved completely in solution；
Step 3: 50g HMX being placed in the solution of above-mentioned configuration, stirred and mixed with the revolving speed of 300r/min using blender
Dispersion liquid is closed, soaks blasting explosive granules surface cmpletely with solution；
Step 4: the Dopamine hydrochloride that concentration is 10mmol/L being added in above-mentioned mixed dispersion liquid, stirring is allowed to completely molten
Solution；
Step 5: above-mentioned mixed dispersion liquid is continued to use into blender and is stirred with the revolving speed of 500r/min, time 20min；
Step 6: the dispersion liquid after the completion of stirring being subjected to suction filtration cleaning, is respectively washed 2 times using distilled water and ethyl alcohol；
Step 7: the material after cleaning being placed in 50 DEG C of baking ovens dry 5h, obtains cladding HMX material.
Table 1 is the modification HMX crystal prepared in embodiment 1 and the mechanical sensitivity correlation data of original HMX, by testing number
According to comparison it is found that the friction sensitivity of modified HMX crystal drops to 0 from 100%.
Table 2 is the modification RDX crystal prepared in embodiment 2 and the mechanical sensitivity correlation data of original RDX, friction sensitivity
20% is dropped to from 70%.
Table 3 is the modification CL-20 crystal prepared in embodiment 3 and the mechanical sensitivity correlation data of original CL-20, characteristic
Drop height rises to 25cm from 12cm, and the mechanical sensitivity of modified material reduces, and safety is more preferable.
Table 1
Table 2
Table 3
Quick uniform of the present invention coats energetic material preparation method simple process, need to only stir in the solution of configuration and is
Can, it can prepare in batches on a large scale, and the reaction time is short, reduce the risk point of reaction process；Pyrocatechol substance is by phenol hydroxyl
After base is oxidized to quinonyl, intermolecular interaction, which is formed, to be stacked, and eventually forms polymer.Oxidant is added in reaction solution
Afterwards, the reaction speed that phenolic hydroxyl group can be made to be oxidized to quinonyl greatly improves, so that the reaction that is swift in response, when shortening polymerization reaction
Between, the reaction solution without adding oxidant can only come slowly to aoxidize phenolic hydroxyl group by the faint aerobic environment contained in air
Group, therefore, polymerization rate are slower.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (8)
1. a kind of method that quickly preparation uniformly coats energetic material, which is characterized in that the preparation method for coating energetic material is pressed
Following steps carry out:
Step 1: the alkaline solution that configuration pH is 8~11；
Step 2: the oxidant of 20mmol/L~800mmol/L being added in the alkaline solution that step 1 configures, is dissolved completely in alkali
In property solution；
Step 3: the energetic material of weighing being placed in the resulting solution of step 2, using blender with 100r/min~1000r/
The revolving speed of min is stirred dispersion liquid, soaks energetic material particle surface cmpletely with solution；
Step 4: the pyrocatechol substance that concentration is 10mmol/L~400mmol/L, stirring being added in step 3 gained dispersion liquid
It is allowed to be completely dissolved；
Step 5: step 4 gained mixed dispersion liquid being continued to use into blender and is stirred with the revolving speed of 100r/min~1000r/min；
Step 6: suction filtration cleaning will be carried out after the completion of the resulting mixed dispersion liquid stirring of step 5；
Step 7: the material after cleaning being placed in baking oven dry 0.5h~for 24 hours, obtains cladding energetic material.
2. the method that a kind of quickly preparation according to claim 1 uniformly coats energetic material, which is characterized in that described
In step 1, the alkaline solution of configuration be trishydroxymethylaminomethane alkaline buffer solution, sodium bicarbonate weakly alkaline solution, ammonium hydroxide,
Sodium hydroxide or potassium hydroxide strong alkali solution.
3. the method that a kind of quickly preparation according to claim 1 uniformly coats energetic material, which is characterized in that described
In step 2, the oxidant is sodium metaperiodate, ammonium persulfate, hydrogen peroxide or copper sulphate.
4. the method that a kind of quickly preparation according to claim 1 uniformly coats energetic material, which is characterized in that described
In step 3, the energetic material is octogen, heisuojin or CL-20 explosive material not soluble in water.
5. the method that a kind of quickly preparation according to claim 1 uniformly coats energetic material, which is characterized in that described
In step 4, the pyrocatechol substance is Dopamine hydrochloride.
6. the method that a kind of quickly preparation according to claim 1 uniformly coats energetic material, which is characterized in that described
In step 5, mixing time is 0.5min~20min.
7. the method that a kind of quickly preparation according to claim 1 uniformly coats energetic material, which is characterized in that described
In step 6, the cleaning is to be respectively washed 1~5 time using distilled water and ethyl alcohol.
8. the method that a kind of quickly preparation according to claim 1 uniformly coats energetic material, which is characterized in that described
In step 7, the temperature setting in the baking oven is 50 DEG C~80 DEG C.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111948369A (en) * | 2020-07-23 | 2020-11-17 | 西安近代化学研究所 | Passivation NTO coating quality evaluation method prepared by supercritical method |
| CN112963270A (en) * | 2021-02-04 | 2021-06-15 | 浙江大学 | Method for improving stability of nano aluminum particle carbon-hydrogen two-phase fluid fuel |
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Cited By (4)
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| CN111948369A (en) * | 2020-07-23 | 2020-11-17 | 西安近代化学研究所 | Passivation NTO coating quality evaluation method prepared by supercritical method |
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| CN112963270A (en) * | 2021-02-04 | 2021-06-15 | 浙江大学 | Method for improving stability of nano aluminum particle carbon-hydrogen two-phase fluid fuel |
| CN112963270B (en) * | 2021-02-04 | 2022-04-12 | 浙江大学 | Method for improving stability of nano aluminum particle carbon-hydrogen two-phase fluid fuel |
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