CN104944422A - Ignition powder and preparation method - Google Patents
Ignition powder and preparation method Download PDFInfo
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- CN104944422A CN104944422A CN201510317032.9A CN201510317032A CN104944422A CN 104944422 A CN104944422 A CN 104944422A CN 201510317032 A CN201510317032 A CN 201510317032A CN 104944422 A CN104944422 A CN 104944422A
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Abstract
The invention relates to ignition powder and preparation method, and belongs to the field of energetic materials. The ignition powder comprises the following raw materials: 20 to 40 percent of graphene, 40 to 60 percent of potassium nitrate, 5 to 10 percent of calcium peroxide, 12 to 30 percent of ammonium persulfate, 1 to 8 percent of a binding agent, and 0.5 to 2 percent of red phosphorus. The preparation method comprises the following steps: taking graphene, potassium nitrate, calcium peroxide, ammonium persulfate and red phosphorus according to the proportion; mixing the raw materials uniformly to obtain a mixture; preparing a glue solution with the binding agent through an anhydrous solvent; dripping the glue solution onto the mixture; stirring uniformly; filtering; drying; sieving to obtain the ignition powder. The ignition powder and the preparation method have the advantages that the ignition powder is high in ignition capacity and firing reliability, and low in sensitivity, so as to ensure safety in transportation and use; the preparation method adopts no complex equipment, is simple in process, and provides convenience for continuous production.
Description
Technical field
The present invention relates to a kind of priming charge and preparation method, belong to energetic material field.
Background technology
Priming charge refers to, under the effect of outside energy, rapid combustion reactions can occur, and release the pyrotechnic composition of a large amount of heat, gas and hot-engine sludge, there is heat sensitivity high, the feature that ignition ability is stronger, be mainly used for various gunpowder, pyrotechnics composition and the priming system of igniting.
The priming charge used in current propelling agent is mainly black powder, to be ignited propelling agent by hot gas and solids, but few owing to firing speed solids that are fast, that generate, and can not produce stable pressure, pressure is excessive simultaneously, high to the requirement of strength of housing.The priming charge of charcoal and Potcrate composition has the shortcomings such as combustion speed is low, ignition ability is weak; Metal oxide is added to the priming charge formed in Potcrate and improve combustion speed and ignition ability, but it is higher to there is inductance degree, the problem of production security difference.Red lead silicon mooring points gunpowder is the priming charge that a kind of conduction time is short, ignition ability is high, solid product is many, but its friction sensitivity and mechanical sensitivity higher, there is certain potential safety hazard.Patent 201010296010.8 adopts nickel hydrazine nitrate and red lead-ferrosilicon and binding agent to be mixed to form thick priming charge, reduce mechanical sensitivity to a certain extent, improve security, but easily there is the bad phenomenon such as pore, crackle when thick priming charge Tu is on igniter head, be unfavorable for igniting, this priming charge has certain contaminative to environment simultaneously.Therefore, invent the priming charge that a kind of ignition ability is strong, mechanical sensitivity is low, security is good and have important meaning.
Summary of the invention
The object of the invention is to provide a kind of priming charge and preparation method, and this priming charge has the advantage that ignition ability is high, mechanical sensitivity is low, security is good.
A kind of priming charge, in its formula, the massfraction of point component is as follows:
Described binding agent be hydroxy-terminated polybutadienes, nitro-cotton, viton any one.
A preparation method for priming charge, its concrete preparation process is as follows:
Step one, take Graphene, saltpetre, calcium peroxide, ammonium persulphate, red phosphorus, binding agent according to formula rate, Graphene, saltpetre, calcium peroxide, red phosphorus and ammonium persulphate are mixed, obtains mixture;
Step 2, binding agent step one weighed are dissolved in anhydrous solvent, stir and make it dissolve completely, and forming massfraction is the liquid glue of 1 ~ 6%;
Step 3, proportionlity according to every 100ml anhydrous solvent correspondence 10 ~ 30g mixture, mixture step one obtained joins in anhydrous solvent, stirs, and forms mixing solutions;
Step 4, liquid glue step 2 obtained are added drop-wise in the mixing solutions of step 3, after stirring, filter, dry, cross 60 object sieves, obtain a kind of priming charge.
Described anhydrous solvent is tetrahydrofuran (THF), ethyl acetate, methyl-formiate.
Beneficial effect
1, the preparation method of a kind of priming charge of the present invention, technique is simple.The present invention is without the need to adopting complicated equipment, and preparation technology is simple, and operation is simple, is convenient to continuous prodution.
2, a kind of priming charge of the present invention, forms certain protective layer at priming charge under the effect of liquid glue, reduces sensitivity, the security improving transport and use.
3, a kind of priming charge of the present invention, ignition ability is strong, and Fire Reliability is high.
Embodiment:
Below in conjunction with embodiment, the present invention will be further described.
Embodiment 1:
A kind of priming charge and preparation method, in its formula, the quality of each component is: 20g Graphene, 47.5g saltpetre, 8g calcium peroxide, 22g ammonium persulphate and 2g hydroxy-teminal butadiene, 0.5g red phosphorus;
A preparation method for priming charge, its concrete preparation process is as follows:
1) take 20g Graphene, 48g saltpetre, 8g calcium peroxide, 22g ammonium persulphate, 0.5g red phosphorus mixes;
2) 2g hydroxy-teminal butadiene is dissolved in anhydrous tetrahydro furan, forms the liquid glue of 2%;
3) by 1) in mixture join in the anhydrous tetrahydro furan of 400ml, then under the condition stirred, add liquid glue, be added dropwise to complete rear stirring 50min, form mixing solutions, wherein rate of addition is per minute 50, and stirring velocity is 400r/min;
4) by mixing solutions filter, dry 2h under natural condition, then temperature be 40 DEG C, vacuum tightness be the condition of 0.07MPa under dry 6h; Finally cross 60 object sieves, obtain mechanical impacting sensitivity 12%, ignition time be 6ms, combustion time 0.89s priming charge.
Embodiment 2:
A kind of priming charge and preparation method, in its formula, the quality of each component is: 37g Graphene, 36g saltpetre, 10g calcium peroxide, 15g ammonium persulphate, 2g red phosphorus and 4g nitro-cotton.
A preparation method for priming charge, its concrete preparation process is as follows:
1) take 39g Graphene, 36g saltpetre, 10g calcium peroxide, 15g ammonium persulphate mix;
2) 4g nitro-cotton is dissolved in anhydrous ethyl acetate, forms the liquid glue of 1%;
3) by 1) in mixture join in the anhydrous tetrahydro furan of 400ml, then under the condition stirred, add liquid glue, be added dropwise to complete rear stirring 60min, form mixing solutions, wherein rate of addition is per minute 60, and stirring velocity is 500r/min;
4) by mixing solutions filter, dry 2h under field conditions (factors), then temperature be 40 DEG C, vacuum tightness be the condition of 0.06MPa under dry 5h; Finally cross 60 object sieves, obtain mechanical impacting sensitivity 10%, ignition time be 5.8ms, combustion time 0.88s priming charge.
Embodiment 3:
A kind of priming charge and preparation method, in its formula, the quality of each component is: 37g Graphene, 35g saltpetre, 7g calcium peroxide, 17g ammonium persulphate, 1g red phosphorus and 3g viton.
A preparation method for priming charge, its concrete preparation process is as follows:
1) take 37g Graphene, 35g saltpetre, 8g calcium peroxide, 17g ammonium persulphate mix;
2) 3g viton is dissolved in anhydrous acetic acid methyl esters, forms the liquid glue of 6%;
3) by 1) in mixture join in the anhydrous tetrahydro furan of 350ml, then under the condition stirred, add liquid glue, be added dropwise to complete rear stirring 80min, form mixing solutions, wherein rate of addition is per minute 50, and stirring velocity is 800r/min;
4) by mixing solutions filter, dry 3h under field conditions (factors), then temperature be 40 DEG C, vacuum tightness be the condition of 0.05MPa under dry 5h; Finally cross 60 object sieves, obtain mechanical impacting sensitivity 11.5%, ignition time be 5.5ms, combustion time 0.91s priming charge.
Embodiment 4:
A kind of priming charge and preparation method, in its formula, the quality of each component is: 20g Graphene, 53.5g saltpetre, 5g calcium peroxide, 12g ammonium persulphate, 1.5g red phosphorus and 8g hydroxy-teminal butadiene.
A preparation method for priming charge, its concrete preparation process is as follows:
1) take 20g Graphene, 55g saltpetre, 5g calcium peroxide, 12g ammonium persulphate mix;
2) 8g hydroxy-teminal butadiene is dissolved in anhydrous ethyl acetate, forms the liquid glue of 4%;
3) by 1) in mixture join in the anhydrous tetrahydro furan of 350ml, then under the condition stirred, add liquid glue, be added dropwise to complete rear stirring 60min, form mixing solutions, wherein rate of addition is per minute 60, and stirring velocity is 500r/min;
4) by mixing solutions filter, dry 2h under field conditions (factors), then temperature be 40 DEG C, vacuum tightness be the condition of 0.06MPa under dry 5h; Finally cross 60 object sieves, obtain mechanical impacting sensitivity 10.8%, ignition time be 5.6ms, combustion time 0.90s priming charge.
Embodiment 5:
A kind of priming charge and preparation method, in its formula, the quality of each component is: 25g Graphene, 35g saltpetre, 9g calcium peroxide, 29.2g ammonium persulphate, 0.8g red phosphorus and 1g viton.
A preparation method for priming charge, its concrete preparation process is as follows:
1) take 25g Graphene, 35g saltpetre, 9g calcium peroxide, 30g ammonium persulphate mix;
2) 1g viton is dissolved in anhydrous tetrahydro furan, forms the liquid glue of 5%;
3) by 1) in mixture join in the anhydrous tetrahydro furan of 400ml, then under the condition stirred, add liquid glue, be added dropwise to complete rear stirring 60min, form mixing solutions, wherein rate of addition is per minute 80, and stirring velocity is 800r/min;
4) by mixing solutions filter, dry 3h under field conditions (factors), then temperature be 40 DEG C, vacuum tightness be the condition of 0.02MPa under dry 3h; Finally cross 60 object sieves, obtain mechanical impacting sensitivity 8.9%, ignition time be 5.4ms, combustion time 1.03s priming charge.
Embodiment 6:
A kind of priming charge and preparation method, in its formula, the quality of each component is: 20g Graphene, 33g saltpetre, 10g calcium peroxide, 30g ammonium persulphate, 1.5g red phosphorus and 5.5g nitro-cotton.
A preparation method for priming charge, its concrete preparation process is as follows:
1) take 20g Graphene, 34.5g saltpetre, 10g calcium peroxide, 30g ammonium persulphate mix;
2) 5.5g nitro-cotton is dissolved in anhydrous acetic acid methyl esters, forms the liquid glue of 5%;
3) by 1) in mixture join in the anhydrous tetrahydro furan of 940ml, then under the condition stirred, add liquid glue, be added dropwise to complete rear stirring 60min, form mixing solutions, wherein rate of addition is per minute 55, and stirring velocity is 500r/min;
4) by mixing solutions filter, dry 2h under field conditions (factors), then temperature be 40 DEG C, vacuum tightness be the condition of 0.02MPa under dry 5h; Finally cross 60 object sieves, obtain mechanical impacting sensitivity 9.5%, ignition time be 4ms, combustion time 0.98s priming charge.
Claims (4)
1. a priming charge, is characterized in that: in its formula, the massfraction of point component is as follows:
2. prepare the method for priming charge as claimed in claim 1, it is characterized in that: concrete preparation process is as follows:
Step one, take Graphene, saltpetre, calcium peroxide, ammonium persulphate, red phosphorus, binding agent according to formula rate, Graphene, saltpetre, calcium peroxide, red phosphorus and ammonium persulphate are mixed, obtains mixture;
Step 2, binding agent step one weighed are dissolved in anhydrous solvent, stir and make it dissolve completely, and forming massfraction is the liquid glue of 1 ~ 6%;
Step 3, proportionlity according to every 100ml anhydrous solvent correspondence 10 ~ 30g mixture, mixture step one obtained joins in anhydrous solvent, stirs, and forms mixing solutions;
Step 4, liquid glue step 2 obtained are added drop-wise in the mixing solutions of step 3, after stirring, filter, dry, cross 60 object sieves, obtain a kind of priming charge.
3. a kind of priming charge as claimed in claim 1 or 2, is characterized in that: described binding agent be hydroxy-terminated polybutadienes, nitro-cotton, viton any one.
4. a kind of priming charge as claimed in claim 1 or 2, is characterized in that: described anhydrous solvent is tetrahydrofuran (THF), ethyl acetate, methyl-formiate.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108440226A (en) * | 2018-05-14 | 2018-08-24 | 雅化集团绵阳实业有限公司 | A kind of novel electron detonator ignition charge and preparation method thereof |
| CN109438145A (en) * | 2018-12-26 | 2019-03-08 | 湖北航天化学技术研究所 | A kind of high quick-fried hot aluminum composition and preparation method thereof |
| CN112047795A (en) * | 2020-08-28 | 2020-12-08 | 西安近代化学研究所 | Preparation method of graphene oxide/nitrocotton compound |
| CN116444325A (en) * | 2023-03-23 | 2023-07-18 | 无锡盛景微电子股份有限公司 | Digital electronic detonator ignition agent and preparation method and application thereof |
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| CN103052609A (en) * | 2010-07-15 | 2013-04-17 | 日本化药株式会社 | Igniting powder composition for igniters |
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| US20040134577A1 (en) * | 2001-05-10 | 2004-07-15 | Yasushi Matsumura | Igniting agent composition, and igniter using the igniting agent composition |
| CN1817824A (en) * | 2005-12-30 | 2006-08-16 | 中国航天科技集团公司第四研究院第四十二所 | Chlorate oxygen column as ignitor and production thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108440226A (en) * | 2018-05-14 | 2018-08-24 | 雅化集团绵阳实业有限公司 | A kind of novel electron detonator ignition charge and preparation method thereof |
| CN109438145A (en) * | 2018-12-26 | 2019-03-08 | 湖北航天化学技术研究所 | A kind of high quick-fried hot aluminum composition and preparation method thereof |
| CN109438145B (en) * | 2018-12-26 | 2021-01-22 | 湖北航天化学技术研究所 | High-detonation-heat aluminum-containing explosive and preparation method thereof |
| CN112047795A (en) * | 2020-08-28 | 2020-12-08 | 西安近代化学研究所 | Preparation method of graphene oxide/nitrocotton compound |
| CN112047795B (en) * | 2020-08-28 | 2022-04-19 | 西安近代化学研究所 | Preparation method of graphene oxide/nitrocotton compound |
| CN116444325A (en) * | 2023-03-23 | 2023-07-18 | 无锡盛景微电子股份有限公司 | Digital electronic detonator ignition agent and preparation method and application thereof |
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| CN104944422B (en) | 2017-12-26 |
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